TY  - CONF
AU  - Marušić-Jablanović, Milica
AU  - Stanišić, Jelena
AU  - Gundogan, Dragana
AU  - Blagdanić, Sanja
AU  - Veinović, Zorica
AU  - Đorđević, Dragana
AU  - Županec, Vera
AU  - Savić, Slađana
PY  - 2023
UR  - https://www.ipisr.org.rs/images/pdf/towards-a-more-equitable-education.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7358
AB  - Environmental literacy is essential for addressing the environmental challenges of our time. By improving the environmental literacy of children and the youth, we can help create a more sustainable future for all. Nevertheless, the aims of environmental education must be supported by political, technical, and infrastructural conditions. Furthermore, education at an early age cannot replace the role of adult education, since it is adult education that can bring quicker changes in the processes of citizen participation and decision-making. The development of environmental education should be connected with promoting equity, inclusion, and the quality of education in general. Schools should offer influential role models and the possibility to frequently spend time in nature, especially because it is not available to all families. For this reason, it is crucial to simultaneously work on the development of EE, environmental justice, and social equity.
PB  - Institute for Educational Research
C3  - Book of Proceedings 29th International Scientific Conference “Educational Research and School Practice” - Towards a more equitable education: from research to change, 1. 12. 2023, Faculty of Philosophy, Belgrade
T1  - The importance of sociodemographic characteristics for the development of environmental literacy
T1  - Značaj sociodemografskih karakteristika za razvoj ekološke pismenosti
IS  - 29
SP  - 55
EP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_cer_7358
ER  - 

@conference{
author = "Marušić-Jablanović, Milica and Stanišić, Jelena and Gundogan, Dragana and Blagdanić, Sanja and Veinović, Zorica and Đorđević, Dragana and Županec, Vera and Savić, Slađana",
year = "2023",
abstract = "Environmental literacy is essential for addressing the environmental challenges of our time. By improving the environmental literacy of children and the youth, we can help create a more sustainable future for all. Nevertheless, the aims of environmental education must be supported by political, technical, and infrastructural conditions. Furthermore, education at an early age cannot replace the role of adult education, since it is adult education that can bring quicker changes in the processes of citizen participation and decision-making. The development of environmental education should be connected with promoting equity, inclusion, and the quality of education in general. Schools should offer influential role models and the possibility to frequently spend time in nature, especially because it is not available to all families. For this reason, it is crucial to simultaneously work on the development of EE, environmental justice, and social equity.",
publisher = "Institute for Educational Research",
journal = "Book of Proceedings 29th International Scientific Conference “Educational Research and School Practice” - Towards a more equitable education: from research to change, 1. 12. 2023, Faculty of Philosophy, Belgrade",
title = "The importance of sociodemographic characteristics for the development of environmental literacy, Značaj sociodemografskih karakteristika za razvoj ekološke pismenosti",
number = "29",
pages = "55-61",
url = "https://hdl.handle.net/21.15107/rcub_cer_7358"
}

Marušić-Jablanović, M., Stanišić, J., Gundogan, D., Blagdanić, S., Veinović, Z., Đorđević, D., Županec, V.,& Savić, S.. (2023). The importance of sociodemographic characteristics for the development of environmental literacy. in Book of Proceedings 29th International Scientific Conference “Educational Research and School Practice” - Towards a more equitable education: from research to change, 1. 12. 2023, Faculty of Philosophy, Belgrade
Institute for Educational Research.(29), 55-61.
https://hdl.handle.net/21.15107/rcub_cer_7358

Marušić-Jablanović M, Stanišić J, Gundogan D, Blagdanić S, Veinović Z, Đorđević D, Županec V, Savić S. The importance of sociodemographic characteristics for the development of environmental literacy. in Book of Proceedings 29th International Scientific Conference “Educational Research and School Practice” - Towards a more equitable education: from research to change, 1. 12. 2023, Faculty of Philosophy, Belgrade. 2023;(29):55-61.
https://hdl.handle.net/21.15107/rcub_cer_7358 .

Marušić-Jablanović, Milica, Stanišić, Jelena, Gundogan, Dragana, Blagdanić, Sanja, Veinović, Zorica, Đorđević, Dragana, Županec, Vera, Savić, Slađana, "The importance of sociodemographic characteristics for the development of environmental literacy" in Book of Proceedings 29th International Scientific Conference “Educational Research and School Practice” - Towards a more equitable education: from research to change, 1. 12. 2023, Faculty of Philosophy, Belgrade, no. 29 (2023):55-61,
https://hdl.handle.net/21.15107/rcub_cer_7358 .

TY  - JOUR
AU  - Frančišković-Bilinski, Stanislav
AU  - Peco, Josip
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Inđić, Dejan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7388
AB  - This study was performed to derive the first insight into the distribution of low-field volume magnetic susceptibility (MS) throughout Zagreb city, based on in situ field measurements. The most interesting locations were selected for soil sampling and their geochemical contents were determined using ICP-OES. A geostatistical approach was applied to the MS and geochemical results. A median of 0.245 × 10−3 SI units was proposed as the average MS value in Zagreb. The mean concentrations of heavy metals in Zagreb’s soils (in µg/g) are Pb (36.82), Zn (87.77), Cu (30.84), Cd (0.66), Cr (29.04), Co (11.89), and Ni (28.40), and these measurements are relatively low in comparison to the Croatian legislation and the European and world average. Boxplot analyses demonstrate that 45% of the studied elements do not feature any anomalies, while most of the remaining elements indicate only one weak anomaly located at the same site as the MS anomalies. Our statistical analysis found significant correlations between MS and the following elements: Cd, Co, Fe, Mn, Na, Pb, Sb, and Zn. In situ MS measurements proved to be an efficient tool for the initial screening of large areas with elevated concentrations of heavy elements, enabling the cheap and fast assessment of the state of the environment.
PB  - MDPI
T2  - Minerals
T1  - Magnetic and Geochemical Properties of Zagreb City Area Soils
VL  - 13
IS  - 12
SP  - 1481
DO  - 10.3390/min13121481
ER  - 

@article{
author = "Frančišković-Bilinski, Stanislav and Peco, Josip and Sakan, Sanja and Đorđević, Dragana and Inđić, Dejan",
year = "2023",
abstract = "This study was performed to derive the first insight into the distribution of low-field volume magnetic susceptibility (MS) throughout Zagreb city, based on in situ field measurements. The most interesting locations were selected for soil sampling and their geochemical contents were determined using ICP-OES. A geostatistical approach was applied to the MS and geochemical results. A median of 0.245 × 10−3 SI units was proposed as the average MS value in Zagreb. The mean concentrations of heavy metals in Zagreb’s soils (in µg/g) are Pb (36.82), Zn (87.77), Cu (30.84), Cd (0.66), Cr (29.04), Co (11.89), and Ni (28.40), and these measurements are relatively low in comparison to the Croatian legislation and the European and world average. Boxplot analyses demonstrate that 45% of the studied elements do not feature any anomalies, while most of the remaining elements indicate only one weak anomaly located at the same site as the MS anomalies. Our statistical analysis found significant correlations between MS and the following elements: Cd, Co, Fe, Mn, Na, Pb, Sb, and Zn. In situ MS measurements proved to be an efficient tool for the initial screening of large areas with elevated concentrations of heavy elements, enabling the cheap and fast assessment of the state of the environment.",
publisher = "MDPI",
journal = "Minerals",
title = "Magnetic and Geochemical Properties of Zagreb City Area Soils",
volume = "13",
number = "12",
pages = "1481",
doi = "10.3390/min13121481"
}

Frančišković-Bilinski, S., Peco, J., Sakan, S., Đorđević, D.,& Inđić, D.. (2023). Magnetic and Geochemical Properties of Zagreb City Area Soils. in Minerals
MDPI., 13(12), 1481.
https://doi.org/10.3390/min13121481

Frančišković-Bilinski S, Peco J, Sakan S, Đorđević D, Inđić D. Magnetic and Geochemical Properties of Zagreb City Area Soils. in Minerals. 2023;13(12):1481.
doi:10.3390/min13121481 .

Frančišković-Bilinski, Stanislav, Peco, Josip, Sakan, Sanja, Đorđević, Dragana, Inđić, Dejan, "Magnetic and Geochemical Properties of Zagreb City Area Soils" in Minerals, 13, no. 12 (2023):1481,
https://doi.org/10.3390/min13121481 . .

TY  - JOUR
AU  - Sakan, Sanja
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Ašković, Ksenija
AU  - Sakan, Nenad
AU  - Trifunović, Snežana
AU  - Đorđević, Dragana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6349
AB  - The optimized three-step sequential extraction procedure for the fractionation of micro- and macroelements, was conductedto determine fractional characteristics of PTEs (potentially toxic elements) in surface sediments of rivers in the Vlasinawatershed. The sequential extraction results, which enable the evaluation of mobility of the studied elements, have indicatedthat Zn, Ni, Cu, Cr, and As can be considered slightly mobile, whereas Pb, Mn, Cd, and Co were regarded as possibly mobileelements. Lead was dominantly bounded (specifcally adsorbed or co-precipitated) to iron and manganese oxides (up to 80%)and may be released by reduction. Since the content of the exchangeable fraction (F1) is an indicator for anthropogenic impacton the aquatic environment, a low percentage (0–8%) of studied toxic elements in this fraction indicated that these elementshave lithogenic origin in most sampling locations in the area of study. Except for Pb, the substantial positive correlationsbetween Al and other elements showed that studied elements came primarily from terrigenous sources. Although the valuesobtained for the risk assessment code (RAC) indicated a slightly increased mobility of some elements (up to 22.44%), thevalues of the modifed risk assessment code (mRAC), which include toxic efects on the environment, showed there is nodanger of pollution by studied elements (all values were<1%). Our recommendation is to use mRAC instead of RAC inecochemical studies and assessment of the degree of sediment and soil pollution, because mRAC includes toxic efects ofelements. Based on ATI values, river sediments show no toxic to a low toxic degree. Even though obtained results indicatethat there was no considerable risk for river water contamination, the ecological risk for Fe and Pb should be monitored inthe future.
PB  - Springer
T2  - Environmental Science and Pollution Research
T1  - The significance of applying different factors for the evaluation of sediment contamination by toxic elements and estimation of the ecological risk
VL  - 30
IS  - 18
SP  - 53461
EP  - 53477
DO  - 10.1007/s11356-023-26111-4
ER  - 

@article{
author = "Sakan, Sanja and Mihajlidi-Zelić, Aleksandra and Ašković, Ksenija and Sakan, Nenad and Trifunović, Snežana and Đorđević, Dragana",
year = "2023",
abstract = "The optimized three-step sequential extraction procedure for the fractionation of micro- and macroelements, was conductedto determine fractional characteristics of PTEs (potentially toxic elements) in surface sediments of rivers in the Vlasinawatershed. The sequential extraction results, which enable the evaluation of mobility of the studied elements, have indicatedthat Zn, Ni, Cu, Cr, and As can be considered slightly mobile, whereas Pb, Mn, Cd, and Co were regarded as possibly mobileelements. Lead was dominantly bounded (specifcally adsorbed or co-precipitated) to iron and manganese oxides (up to 80%)and may be released by reduction. Since the content of the exchangeable fraction (F1) is an indicator for anthropogenic impacton the aquatic environment, a low percentage (0–8%) of studied toxic elements in this fraction indicated that these elementshave lithogenic origin in most sampling locations in the area of study. Except for Pb, the substantial positive correlationsbetween Al and other elements showed that studied elements came primarily from terrigenous sources. Although the valuesobtained for the risk assessment code (RAC) indicated a slightly increased mobility of some elements (up to 22.44%), thevalues of the modifed risk assessment code (mRAC), which include toxic efects on the environment, showed there is nodanger of pollution by studied elements (all values were<1%). Our recommendation is to use mRAC instead of RAC inecochemical studies and assessment of the degree of sediment and soil pollution, because mRAC includes toxic efects ofelements. Based on ATI values, river sediments show no toxic to a low toxic degree. Even though obtained results indicatethat there was no considerable risk for river water contamination, the ecological risk for Fe and Pb should be monitored inthe future.",
publisher = "Springer",
journal = "Environmental Science and Pollution Research",
title = "The significance of applying different factors for the evaluation of sediment contamination by toxic elements and estimation of the ecological risk",
volume = "30",
number = "18",
pages = "53461-53477",
doi = "10.1007/s11356-023-26111-4"
}

Sakan, S., Mihajlidi-Zelić, A., Ašković, K., Sakan, N., Trifunović, S.,& Đorđević, D.. (2023). The significance of applying different factors for the evaluation of sediment contamination by toxic elements and estimation of the ecological risk. in Environmental Science and Pollution Research
Springer., 30(18), 53461-53477.
https://doi.org/10.1007/s11356-023-26111-4

Sakan S, Mihajlidi-Zelić A, Ašković K, Sakan N, Trifunović S, Đorđević D. The significance of applying different factors for the evaluation of sediment contamination by toxic elements and estimation of the ecological risk. in Environmental Science and Pollution Research. 2023;30(18):53461-53477.
doi:10.1007/s11356-023-26111-4 .

Sakan, Sanja, Mihajlidi-Zelić, Aleksandra, Ašković, Ksenija, Sakan, Nenad, Trifunović, Snežana, Đorđević, Dragana, "The significance of applying different factors for the evaluation of sediment contamination by toxic elements and estimation of the ecological risk" in Environmental Science and Pollution Research, 30, no. 18 (2023):53461-53477,
https://doi.org/10.1007/s11356-023-26111-4 . .

TY  - JOUR
AU  - Popović, Aleksandar R.
AU  - Anđelković, Boban D.
AU  - Đorđević, Dragana
AU  - Sakan, Sanja
AU  - Vujisić, Ljubodrag V.
AU  - Veličković, Sava
AU  - Relić, Dubravka
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5231
AB  - In order to further define the potential use of FTIR-ATR spectroscopy, as a non-destructive and reliable technique, for the analysis of the characteristics of post stamps, certified originals of the Principality of Serbia stamps (“Prince Michael issues”) issued in 1866 and 1868 as well as their forgeries were ana­lyzed. Spectra enabling the comparison of the paper, dye and glue of stamps of so-called “Vienna issues”, having denominations of 10 (orange-yellow), 20 (pink) and 40 para (blue) and “Belgrade issues” (1 para-green and 2 para-reddish brown), as well as 24 expert-certified forgeries, were taken. It was shown that the applied technology was, in most of the cases, a fast and suitable technique for establishing clear differences between the spectral characteristics of the paper and dye used for the original stamps, and forgeries that were most probably made decades after the printing of the genuine stamps. The differences between print­ings of the same issues of the genuine stamps were also elaborated. It is pro­posed, for the first time in philatelic history, the possibility that “Vienna issues” stamps may have been printed on two different papers, and, having in mind the technology of printing in the 19th century, potentially, not even at the same time or in the same printing house.
PB  - Belgrade : Serbian chemical society
T2  - Journal of the Serbian Chemical Society
T1  - To Professor Petar Pfendt, In calidum, et plurium retributivus memoriae: FTIR-ATR analysis of post stamps of the Principality of Serbia issued in 1866 and 1868 and their forgeries
VL  - 87
IS  - 1
SP  - 27
EP  - 40
DO  - 10.2298/JSC210901090P
ER  - 

@article{
author = "Popović, Aleksandar R. and Anđelković, Boban D. and Đorđević, Dragana and Sakan, Sanja and Vujisić, Ljubodrag V. and Veličković, Sava and Relić, Dubravka",
year = "2022",
abstract = "In order to further define the potential use of FTIR-ATR spectroscopy, as a non-destructive and reliable technique, for the analysis of the characteristics of post stamps, certified originals of the Principality of Serbia stamps (“Prince Michael issues”) issued in 1866 and 1868 as well as their forgeries were ana­lyzed. Spectra enabling the comparison of the paper, dye and glue of stamps of so-called “Vienna issues”, having denominations of 10 (orange-yellow), 20 (pink) and 40 para (blue) and “Belgrade issues” (1 para-green and 2 para-reddish brown), as well as 24 expert-certified forgeries, were taken. It was shown that the applied technology was, in most of the cases, a fast and suitable technique for establishing clear differences between the spectral characteristics of the paper and dye used for the original stamps, and forgeries that were most probably made decades after the printing of the genuine stamps. The differences between print­ings of the same issues of the genuine stamps were also elaborated. It is pro­posed, for the first time in philatelic history, the possibility that “Vienna issues” stamps may have been printed on two different papers, and, having in mind the technology of printing in the 19th century, potentially, not even at the same time or in the same printing house.",
publisher = "Belgrade : Serbian chemical society",
journal = "Journal of the Serbian Chemical Society",
title = "To Professor Petar Pfendt, In calidum, et plurium retributivus memoriae: FTIR-ATR analysis of post stamps of the Principality of Serbia issued in 1866 and 1868 and their forgeries",
volume = "87",
number = "1",
pages = "27-40",
doi = "10.2298/JSC210901090P"
}

Popović, A. R., Anđelković, B. D., Đorđević, D., Sakan, S., Vujisić, L. V., Veličković, S.,& Relić, D.. (2022). To Professor Petar Pfendt, In calidum, et plurium retributivus memoriae: FTIR-ATR analysis of post stamps of the Principality of Serbia issued in 1866 and 1868 and their forgeries. in Journal of the Serbian Chemical Society
Belgrade : Serbian chemical society., 87(1), 27-40.
https://doi.org/10.2298/JSC210901090P

Popović AR, Anđelković BD, Đorđević D, Sakan S, Vujisić LV, Veličković S, Relić D. To Professor Petar Pfendt, In calidum, et plurium retributivus memoriae: FTIR-ATR analysis of post stamps of the Principality of Serbia issued in 1866 and 1868 and their forgeries. in Journal of the Serbian Chemical Society. 2022;87(1):27-40.
doi:10.2298/JSC210901090P .

Popović, Aleksandar R., Anđelković, Boban D., Đorđević, Dragana, Sakan, Sanja, Vujisić, Ljubodrag V., Veličković, Sava, Relić, Dubravka, "To Professor Petar Pfendt, In calidum, et plurium retributivus memoriae: FTIR-ATR analysis of post stamps of the Principality of Serbia issued in 1866 and 1868 and their forgeries" in Journal of the Serbian Chemical Society, 87, no. 1 (2022):27-40,
https://doi.org/10.2298/JSC210901090P . .

TY  - CONF
AU  - Sakan, Sanja
AU  - Frančišković-Bilinski, Stanislav
AU  - Đorđević, Dragana
AU  - Popović, Aleksandar
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Škrivanj, Sandra
AU  - Bilinski, Halka
PY  - 2022
UR  - https://castle2020.irb.hr/Program-and-Book-of-Abstracts
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6851
AB  - The relationships between magnetic susceptibility (MS) and elemental variations have been the focus of considerable study in the fields of environmental assessment. The aim of this study was to apply a rapid and inexpensive, low-field magnetic susceptibility method to stream sediments from Vlasina (Serbia) and Kupa (Croatia) river basins, and discuss the relationships between MS and content of 26 studied elements using statistical approaches. 
In this research, magnetic susceptibility was measured using SM30, a small magnetic susceptibility meter with a very high sensitivity of 1 × 10-7
SI. Inductively Coupled Plasma Optical Emission Spectroscopy was used to determine the concentration of the studied elements, after sequential 
extraction procedure (Sakan et al., 2016). Total concentrations of each element were determined as the sum of concentrations determined in each fraction.
The Kupa River basin, occupies the west-central part of Croatia and is shared by two neighboring countries (Slovenia, Bosnia and Herzegovina). The Kupa itself is a tributary to the Sava River and meets the latter at Sisak after traversing a distance of 294 km. The river basin is one of the most significant water resources in Croatia (Frančišković-Bilinski et al., 2012). 
Vlasina River Basin covers an area of 1061.72 km² and covers the south eastern part of Serbia. The total length of Vlasina River is 65.9 km. The largest part of the geological base of the Vlasina River Basin belongs to the Serbo-Macedonian mass, formed in the Palaeozoic (Carbon-Perm) (Durlević et al., 2019).
Correlation analysis was performed to reveal statistical correlations between MS and 26 elements analyzed by ICP-OES in Kupa sediment samples. Ten of them showed negative correlation (As, B, Ba, Fe, K, Li, Mg, Na, P, S), while other elements showed positive. Chromium showed excellent correlation with MS (0.91) and is element with the highest correlation to MS, what could  indicate its anthropogenic origin. Element with strongest correlation to MS after Cr is vanadium (0.62), followed by Mn (0.52), Al (0.52) and Cd (0.50). All other elements have rather weak correlation with MS, among which highest are those of Sr (0.45), Zn (0.35), Be (0.28), Co (0.27), Pb (0.27) and Ti (0.26). 
Measured MS values in Vlasina samples are mostly very low, with several locations where values are a bit higher; they range from 0.02 x 10-3
to 1.113 x 10-3 SI units. The strongest correlation was observed with Mo (0.43), then with Ag (0.29). Correlations > 0.10 are determined between MS and following elements: Zn (0.17); Cu (0.12); Pb (0.17); Ba (0.13); Mn (0.10); Ti (0.20); V (0.21); In (0.16); Sn (0.16); Tm (0.10); Lu (0.12); Hg (0.16); Bi (0.13); Th (0.15) and U (0.24). Correlation analysis between MS and measured chemical elements has shown that strong correlations do not exist. 
From that it could be concluded that in Vlasina samples there is no significant anthropogenic influence.
PB  - Zagreb : Ruđer Bošković Institute
C3  - 17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism - Book of Abstracts, August 28-September 3, 2022, Castle Trakošćan, Croatia
T1  - Magnetic properties as indicators of toxic elements pollution  in surface sediments of the Vlasina River (Serbia) and Kupa River (Croatia)
SP  - 108
EP  - 109
UR  - https://hdl.handle.net/21.15107/rcub_cer_6851
ER  - 

@conference{
author = "Sakan, Sanja and Frančišković-Bilinski, Stanislav and Đorđević, Dragana and Popović, Aleksandar and Mihajlidi-Zelić, Aleksandra and Škrivanj, Sandra and Bilinski, Halka",
year = "2022",
abstract = "The relationships between magnetic susceptibility (MS) and elemental variations have been the focus of considerable study in the fields of environmental assessment. The aim of this study was to apply a rapid and inexpensive, low-field magnetic susceptibility method to stream sediments from Vlasina (Serbia) and Kupa (Croatia) river basins, and discuss the relationships between MS and content of 26 studied elements using statistical approaches. 
In this research, magnetic susceptibility was measured using SM30, a small magnetic susceptibility meter with a very high sensitivity of 1 × 10-7
SI. Inductively Coupled Plasma Optical Emission Spectroscopy was used to determine the concentration of the studied elements, after sequential 
extraction procedure (Sakan et al., 2016). Total concentrations of each element were determined as the sum of concentrations determined in each fraction.
The Kupa River basin, occupies the west-central part of Croatia and is shared by two neighboring countries (Slovenia, Bosnia and Herzegovina). The Kupa itself is a tributary to the Sava River and meets the latter at Sisak after traversing a distance of 294 km. The river basin is one of the most significant water resources in Croatia (Frančišković-Bilinski et al., 2012). 
Vlasina River Basin covers an area of 1061.72 km² and covers the south eastern part of Serbia. The total length of Vlasina River is 65.9 km. The largest part of the geological base of the Vlasina River Basin belongs to the Serbo-Macedonian mass, formed in the Palaeozoic (Carbon-Perm) (Durlević et al., 2019).
Correlation analysis was performed to reveal statistical correlations between MS and 26 elements analyzed by ICP-OES in Kupa sediment samples. Ten of them showed negative correlation (As, B, Ba, Fe, K, Li, Mg, Na, P, S), while other elements showed positive. Chromium showed excellent correlation with MS (0.91) and is element with the highest correlation to MS, what could  indicate its anthropogenic origin. Element with strongest correlation to MS after Cr is vanadium (0.62), followed by Mn (0.52), Al (0.52) and Cd (0.50). All other elements have rather weak correlation with MS, among which highest are those of Sr (0.45), Zn (0.35), Be (0.28), Co (0.27), Pb (0.27) and Ti (0.26). 
Measured MS values in Vlasina samples are mostly very low, with several locations where values are a bit higher; they range from 0.02 x 10-3
to 1.113 x 10-3 SI units. The strongest correlation was observed with Mo (0.43), then with Ag (0.29). Correlations > 0.10 are determined between MS and following elements: Zn (0.17); Cu (0.12); Pb (0.17); Ba (0.13); Mn (0.10); Ti (0.20); V (0.21); In (0.16); Sn (0.16); Tm (0.10); Lu (0.12); Hg (0.16); Bi (0.13); Th (0.15) and U (0.24). Correlation analysis between MS and measured chemical elements has shown that strong correlations do not exist. 
From that it could be concluded that in Vlasina samples there is no significant anthropogenic influence.",
publisher = "Zagreb : Ruđer Bošković Institute",
journal = "17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism - Book of Abstracts, August 28-September 3, 2022, Castle Trakošćan, Croatia",
title = "Magnetic properties as indicators of toxic elements pollution  in surface sediments of the Vlasina River (Serbia) and Kupa River (Croatia)",
pages = "108-109",
url = "https://hdl.handle.net/21.15107/rcub_cer_6851"
}

Sakan, S., Frančišković-Bilinski, S., Đorđević, D., Popović, A., Mihajlidi-Zelić, A., Škrivanj, S.,& Bilinski, H.. (2022). Magnetic properties as indicators of toxic elements pollution  in surface sediments of the Vlasina River (Serbia) and Kupa River (Croatia). in 17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism - Book of Abstracts, August 28-September 3, 2022, Castle Trakošćan, Croatia
Zagreb : Ruđer Bošković Institute., 108-109.
https://hdl.handle.net/21.15107/rcub_cer_6851

Sakan S, Frančišković-Bilinski S, Đorđević D, Popović A, Mihajlidi-Zelić A, Škrivanj S, Bilinski H. Magnetic properties as indicators of toxic elements pollution  in surface sediments of the Vlasina River (Serbia) and Kupa River (Croatia). in 17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism - Book of Abstracts, August 28-September 3, 2022, Castle Trakošćan, Croatia. 2022;:108-109.
https://hdl.handle.net/21.15107/rcub_cer_6851 .

Sakan, Sanja, Frančišković-Bilinski, Stanislav, Đorđević, Dragana, Popović, Aleksandar, Mihajlidi-Zelić, Aleksandra, Škrivanj, Sandra, Bilinski, Halka, "Magnetic properties as indicators of toxic elements pollution  in surface sediments of the Vlasina River (Serbia) and Kupa River (Croatia)" in 17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism - Book of Abstracts, August 28-September 3, 2022, Castle Trakošćan, Croatia (2022):108-109,
https://hdl.handle.net/21.15107/rcub_cer_6851 .

TY  - JOUR
AU  - Ostojić, Bojana
AU  - Stanković, Branislav
AU  - Đorđević, Dragana
AU  - Schwerdtfeger, Peter
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5350
AB  - CO2 capture, conversion and storage belong to the holy grail of environmental science. We therefore explore an important photochemical hydride transfer reaction of benzimidazoline derivatives with CO2 in a polar solvent (dimethylsulfoxide) by quantum-chemical methods. While the excited electronic state undergoing hydride transfer to formate (HCOO−) shows a higher reaction path barrier compared to the ground state, a charge-transfer can occur in the near-UV region with nearly barrierless access to the products involving a conical intersection between both electronic states. Such radiationless decay through the hydride transfer reaction and formation of HCCO−via excited electronic states in suitable organic compounds opens the way for future photochemical CO2 reduction. We provide a detailed analysis for the chemical CO2 reduction to the formate anion for 15 different benzimidazoline derivatives in terms of thermodynamic hydricities (ΔGH), activation free energies (ΔG‡HT), and reaction free energies (ΔGrxn) for the chosen solvent dimethylsulfoxide at the level of density functional theory. The calculated hydricities are in the range from 35.0 to 42.0 kcal mol−1i.e. the species possess strong hydride donor abilities required for the CO2 reduction to formate, characterized by relatively low activation free energies between 18.5 and 22.2 kcal mol−1. The regeneration of the benzimidazoline can be achieved electrochemically.
PB  - Elsevier
T2  - Physical Chemistry Chemical Physics
T1  - Light-driven reduction of CO2: thermodynamics and kinetics of hydride transfer reactions in benzimidazoline derivatives
VL  - 24
IS  - 34
SP  - 20357
EP  - 20370
DO  - 10.1039/d2cp02867k
ER  - 

@article{
author = "Ostojić, Bojana and Stanković, Branislav and Đorđević, Dragana and Schwerdtfeger, Peter",
year = "2022",
abstract = "CO2 capture, conversion and storage belong to the holy grail of environmental science. We therefore explore an important photochemical hydride transfer reaction of benzimidazoline derivatives with CO2 in a polar solvent (dimethylsulfoxide) by quantum-chemical methods. While the excited electronic state undergoing hydride transfer to formate (HCOO−) shows a higher reaction path barrier compared to the ground state, a charge-transfer can occur in the near-UV region with nearly barrierless access to the products involving a conical intersection between both electronic states. Such radiationless decay through the hydride transfer reaction and formation of HCCO−via excited electronic states in suitable organic compounds opens the way for future photochemical CO2 reduction. We provide a detailed analysis for the chemical CO2 reduction to the formate anion for 15 different benzimidazoline derivatives in terms of thermodynamic hydricities (ΔGH), activation free energies (ΔG‡HT), and reaction free energies (ΔGrxn) for the chosen solvent dimethylsulfoxide at the level of density functional theory. The calculated hydricities are in the range from 35.0 to 42.0 kcal mol−1i.e. the species possess strong hydride donor abilities required for the CO2 reduction to formate, characterized by relatively low activation free energies between 18.5 and 22.2 kcal mol−1. The regeneration of the benzimidazoline can be achieved electrochemically.",
publisher = "Elsevier",
journal = "Physical Chemistry Chemical Physics",
title = "Light-driven reduction of CO2: thermodynamics and kinetics of hydride transfer reactions in benzimidazoline derivatives",
volume = "24",
number = "34",
pages = "20357-20370",
doi = "10.1039/d2cp02867k"
}

Ostojić, B., Stanković, B., Đorđević, D.,& Schwerdtfeger, P.. (2022). Light-driven reduction of CO2: thermodynamics and kinetics of hydride transfer reactions in benzimidazoline derivatives. in Physical Chemistry Chemical Physics
Elsevier., 24(34), 20357-20370.
https://doi.org/10.1039/d2cp02867k

Ostojić B, Stanković B, Đorđević D, Schwerdtfeger P. Light-driven reduction of CO2: thermodynamics and kinetics of hydride transfer reactions in benzimidazoline derivatives. in Physical Chemistry Chemical Physics. 2022;24(34):20357-20370.
doi:10.1039/d2cp02867k .

Ostojić, Bojana, Stanković, Branislav, Đorđević, Dragana, Schwerdtfeger, Peter, "Light-driven reduction of CO2: thermodynamics and kinetics of hydride transfer reactions in benzimidazoline derivatives" in Physical Chemistry Chemical Physics, 24, no. 34 (2022):20357-20370,
https://doi.org/10.1039/d2cp02867k . .

TY  - JOUR
AU  - Sakan, Sanja
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Škrivanj, Sandra
AU  - Frančišković-Bilinski, Stanislav
AU  - Đorđević, Dragana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5638
AB  - Increasing pollutant levels in surface water are a very important problem in developing countries. In Serbia, the largest rivers are transboundary rivers that cross the border already polluted. Taking this into account, evaluation of the distribution characteristics, ecological risk, and sources of toxic elements in river water and surface sediments in the watercourses of the Vlasina watershed is of great significance for the protection of water resources in Serbia. A total of 17 sediment and 18 water samples were collected and analyzed by Inductively Coupled Plasma—Optical Emission spectrometry (ICP-OES) and Inductively Coupled Plasma—Mass spectrometry (ICP-MS) to determine micro- and macroelements contents. The geo-accumulation index (Igeo) was applied to determine and classify the magnitude of toxic element pollution in this river sediment. The contents of the studied toxic elements were below water and sediment quality guidelines. For studied river water, results of principal component analysis (PCA) indicated the difference in behavior of Cr, Mn, Ni, Cu, and As and V, respectively. Cluster analysis (CA) classified water samples according to As and Cu content. The PCA results revealed that lead in river sediments had different behavior than other elements and can be associated mainly with anthropogenic sources. According to the degree of Igeo, the majority of sediments in the Vlasina region were uncontaminated regarding studied toxic elements. The origin of elements is mostly from natural processes such as soil and rock weathering.
PB  - Switzerland : Frontiers Media S.A.
T2  - Frontiers in Environmental Science
T1  - An Integrated Approach in the Assessment of the Vlasina River System Pollution by Toxic Elements
VL  - 10
SP  - 909858
DO  - 10.3389/fenvs.2022.909858
ER  - 

@article{
author = "Sakan, Sanja and Mihajlidi-Zelić, Aleksandra and Škrivanj, Sandra and Frančišković-Bilinski, Stanislav and Đorđević, Dragana",
year = "2022",
abstract = "Increasing pollutant levels in surface water are a very important problem in developing countries. In Serbia, the largest rivers are transboundary rivers that cross the border already polluted. Taking this into account, evaluation of the distribution characteristics, ecological risk, and sources of toxic elements in river water and surface sediments in the watercourses of the Vlasina watershed is of great significance for the protection of water resources in Serbia. A total of 17 sediment and 18 water samples were collected and analyzed by Inductively Coupled Plasma—Optical Emission spectrometry (ICP-OES) and Inductively Coupled Plasma—Mass spectrometry (ICP-MS) to determine micro- and macroelements contents. The geo-accumulation index (Igeo) was applied to determine and classify the magnitude of toxic element pollution in this river sediment. The contents of the studied toxic elements were below water and sediment quality guidelines. For studied river water, results of principal component analysis (PCA) indicated the difference in behavior of Cr, Mn, Ni, Cu, and As and V, respectively. Cluster analysis (CA) classified water samples according to As and Cu content. The PCA results revealed that lead in river sediments had different behavior than other elements and can be associated mainly with anthropogenic sources. According to the degree of Igeo, the majority of sediments in the Vlasina region were uncontaminated regarding studied toxic elements. The origin of elements is mostly from natural processes such as soil and rock weathering.",
publisher = "Switzerland : Frontiers Media S.A.",
journal = "Frontiers in Environmental Science",
title = "An Integrated Approach in the Assessment of the Vlasina River System Pollution by Toxic Elements",
volume = "10",
pages = "909858",
doi = "10.3389/fenvs.2022.909858"
}

Sakan, S., Mihajlidi-Zelić, A., Škrivanj, S., Frančišković-Bilinski, S.,& Đorđević, D.. (2022). An Integrated Approach in the Assessment of the Vlasina River System Pollution by Toxic Elements. in Frontiers in Environmental Science
Switzerland : Frontiers Media S.A.., 10, 909858.
https://doi.org/10.3389/fenvs.2022.909858

Sakan S, Mihajlidi-Zelić A, Škrivanj S, Frančišković-Bilinski S, Đorđević D. An Integrated Approach in the Assessment of the Vlasina River System Pollution by Toxic Elements. in Frontiers in Environmental Science. 2022;10:909858.
doi:10.3389/fenvs.2022.909858 .

Sakan, Sanja, Mihajlidi-Zelić, Aleksandra, Škrivanj, Sandra, Frančišković-Bilinski, Stanislav, Đorđević, Dragana, "An Integrated Approach in the Assessment of the Vlasina River System Pollution by Toxic Elements" in Frontiers in Environmental Science, 10 (2022):909858,
https://doi.org/10.3389/fenvs.2022.909858 . .

TY  - JOUR
AU  - Pavlović, Pavle
AU  - Sawidis, Thomas
AU  - Breuste, Jürgen
AU  - Kostić, Olga
AU  - Čakmak, Dragan
AU  - Đorđević, Dragana
AU  - Pavlović, Dragana
AU  - Pavlović, Marija
AU  - Perović, Veljko
AU  - Mitrović, Miroslava
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4713
AB  - Concentrations of potentially toxic elements (PTEs) (Al, As, Cd, Cr, Cu, Ni, Pb, and
Zn) were measured in topsoil samples collected from parks in the cities of Salzburg (Austria),
Thessaloniki (Greece), and Belgrade (Serbia) in order to assess the distribution of PTEs in the urban
environment, discriminate natural (lithogenic) and anthropogenic contributions, identify possible
sources of pollution, and compare levels of pollution between the cities. An assessment of the
health risks caused by exposure to PTEs through different pathways was also conducted. The
study revealed that, with the exception of Pb in Salzburg, levels of PTEs in the soils in polluted
urban parks were higher than in unpolluted ones, but still lower than those recorded in other
European soils. Results of sequential analyses showed that Al, Cr, and Ni were found in residual
phases, proving their predominantly lithogenic origin and their low mobility. In contrast, the
influence of anthropogenic factors on Cu, Pb, and Zn was evident. Site-dependent variations showed
that the highest concentrations of As, Cu, Pb, and Zn of anthropogenic origin were recorded in
Salzburg, while the highest levels of Al, Cr, and Ni of lithogenic origin were recorded in Belgrade
and Thessaloniki, which reflects the specificity of the geological substrates. Results obtained for the
health risk assessment showed that no human health risk was found for either children or adults.
PB  - MDPI
T2  - International Journal of Environmental Research and Public Health
T1  - Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment
VL  - 18
IS  - 11
SP  - 6014
DO  - 10.3390/ijerph18116014
ER  - 

@article{
author = "Pavlović, Pavle and Sawidis, Thomas and Breuste, Jürgen and Kostić, Olga and Čakmak, Dragan and Đorđević, Dragana and Pavlović, Dragana and Pavlović, Marija and Perović, Veljko and Mitrović, Miroslava",
year = "2021",
abstract = "Concentrations of potentially toxic elements (PTEs) (Al, As, Cd, Cr, Cu, Ni, Pb, and
Zn) were measured in topsoil samples collected from parks in the cities of Salzburg (Austria),
Thessaloniki (Greece), and Belgrade (Serbia) in order to assess the distribution of PTEs in the urban
environment, discriminate natural (lithogenic) and anthropogenic contributions, identify possible
sources of pollution, and compare levels of pollution between the cities. An assessment of the
health risks caused by exposure to PTEs through different pathways was also conducted. The
study revealed that, with the exception of Pb in Salzburg, levels of PTEs in the soils in polluted
urban parks were higher than in unpolluted ones, but still lower than those recorded in other
European soils. Results of sequential analyses showed that Al, Cr, and Ni were found in residual
phases, proving their predominantly lithogenic origin and their low mobility. In contrast, the
influence of anthropogenic factors on Cu, Pb, and Zn was evident. Site-dependent variations showed
that the highest concentrations of As, Cu, Pb, and Zn of anthropogenic origin were recorded in
Salzburg, while the highest levels of Al, Cr, and Ni of lithogenic origin were recorded in Belgrade
and Thessaloniki, which reflects the specificity of the geological substrates. Results obtained for the
health risk assessment showed that no human health risk was found for either children or adults.",
publisher = "MDPI",
journal = "International Journal of Environmental Research and Public Health",
title = "Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment",
volume = "18",
number = "11",
pages = "6014",
doi = "10.3390/ijerph18116014"
}

Pavlović, P., Sawidis, T., Breuste, J., Kostić, O., Čakmak, D., Đorđević, D., Pavlović, D., Pavlović, M., Perović, V.,& Mitrović, M.. (2021). Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment. in International Journal of Environmental Research and Public Health
MDPI., 18(11), 6014.
https://doi.org/10.3390/ijerph18116014

Pavlović P, Sawidis T, Breuste J, Kostić O, Čakmak D, Đorđević D, Pavlović D, Pavlović M, Perović V, Mitrović M. Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment. in International Journal of Environmental Research and Public Health. 2021;18(11):6014.
doi:10.3390/ijerph18116014 .

Pavlović, Pavle, Sawidis, Thomas, Breuste, Jürgen, Kostić, Olga, Čakmak, Dragan, Đorđević, Dragana, Pavlović, Dragana, Pavlović, Marija, Perović, Veljko, Mitrović, Miroslava, "Fractionation of Potentially Toxic Elements (PTEs) in Urban Soils from Salzburg, Thessaloniki and Belgrade: An Insight into Source Identification and Human Health Risk Assessment" in International Journal of Environmental Research and Public Health, 18, no. 11 (2021):6014,
https://doi.org/10.3390/ijerph18116014 . .

TY  - CONF
AU  - Sakan, Sanja
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Škrivanj, Sandra
AU  - Frančišković-Bilinski, Stanislav
AU  - Bilinski, Halka
AU  - Đorđević, Dragana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6849
AB  - In this research, the optimized three-step sequential extraction procedure for the fractionation of micro- and macroelements, proposed by Commission of European Communities of reference (BCR) has been applied to the soils from Vlasina region. Element concentrations in the extracts were determined using ICP OES. Magnetic  susceptibility (MS) was measured using magnetic susceptibility meter. The index of geoaccumulation (Igeo) has been applied to assess trace elements distribution and contamination in studied soils. An assessment of toxic element levels in the studied soils is made by comparing the total contents of the extracted elements with the limit values determined by Serbian Regulation. Metal fractionation showed that easily mobile form is 
dominant for lead and manganese. Other elements (Zn, Ni, Cr, Co, As, Cu, Cd, and V), found dominantly in the residual fraction indicate that these elements may be an indicator for natural sources input. Obtained results indicated that the soils from Vlasina region were not contaminated with toxic elements and the origin of elements is mostly from natural processes such as soil and rock weathering.
PB  - Serbian Society of Soil Science
C3  - Book of proceedings - 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21–24 September 2021 Sokobanja, Serbia
T1  - Toxic elements in soils from Vlasina region
SP  - 79
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_cer_6849
ER  - 

@conference{
author = "Sakan, Sanja and Mihajlidi-Zelić, Aleksandra and Škrivanj, Sandra and Frančišković-Bilinski, Stanislav and Bilinski, Halka and Đorđević, Dragana",
year = "2021",
abstract = "In this research, the optimized three-step sequential extraction procedure for the fractionation of micro- and macroelements, proposed by Commission of European Communities of reference (BCR) has been applied to the soils from Vlasina region. Element concentrations in the extracts were determined using ICP OES. Magnetic  susceptibility (MS) was measured using magnetic susceptibility meter. The index of geoaccumulation (Igeo) has been applied to assess trace elements distribution and contamination in studied soils. An assessment of toxic element levels in the studied soils is made by comparing the total contents of the extracted elements with the limit values determined by Serbian Regulation. Metal fractionation showed that easily mobile form is 
dominant for lead and manganese. Other elements (Zn, Ni, Cr, Co, As, Cu, Cd, and V), found dominantly in the residual fraction indicate that these elements may be an indicator for natural sources input. Obtained results indicated that the soils from Vlasina region were not contaminated with toxic elements and the origin of elements is mostly from natural processes such as soil and rock weathering.",
publisher = "Serbian Society of Soil Science",
journal = "Book of proceedings - 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21–24 September 2021 Sokobanja, Serbia",
title = "Toxic elements in soils from Vlasina region",
pages = "79-86",
url = "https://hdl.handle.net/21.15107/rcub_cer_6849"
}

Sakan, S., Mihajlidi-Zelić, A., Škrivanj, S., Frančišković-Bilinski, S., Bilinski, H.,& Đorđević, D.. (2021). Toxic elements in soils from Vlasina region. in Book of proceedings - 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21–24 September 2021 Sokobanja, Serbia
Serbian Society of Soil Science., 79-86.
https://hdl.handle.net/21.15107/rcub_cer_6849

Sakan S, Mihajlidi-Zelić A, Škrivanj S, Frančišković-Bilinski S, Bilinski H, Đorđević D. Toxic elements in soils from Vlasina region. in Book of proceedings - 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21–24 September 2021 Sokobanja, Serbia. 2021;:79-86.
https://hdl.handle.net/21.15107/rcub_cer_6849 .

Sakan, Sanja, Mihajlidi-Zelić, Aleksandra, Škrivanj, Sandra, Frančišković-Bilinski, Stanislav, Bilinski, Halka, Đorđević, Dragana, "Toxic elements in soils from Vlasina region" in Book of proceedings - 3rd International and 15th National Congress Soils for Future Under Global Challenges, 21–24 September 2021 Sokobanja, Serbia (2021):79-86,
https://hdl.handle.net/21.15107/rcub_cer_6849 .

TY  - JOUR
AU  - Đorđević, Dragana
AU  - Sakan, Sanja
AU  - Trifunović, Snežana
AU  - Škrivanj, Sandra
AU  - Finger, David Christian
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4928
AB  - In this work, we present the results of element content in river sediments and soil of the Rangárvellir river in southern Iceland as well as in the volcano ash from the Eyjafjallajökull eruption in 2010. Severe natural catastrophes have devastating impact on the environment. We selected the Rangárvellir area located in the vicinity of Mt Hekla, Iceland’s most active volcano, for our study. This study site is ideal to investigate wind and water erosion and sediment transport processes of two main glaciers rivers: the Eystri-Rangá and the Ytri-Rangá and the Hroarslækur River. Sediments of these rivers consist of volcano materials, ash and lava. In order to assess the sediment dynamics, we collected sediment, soil and volcanic ash. The fractioning of the elements was carried out using sequential extractions. The distribution of Si indicates that the sediments originate from the same geochemical basis. Li and partly B exist in the first phase of volcanic ash and river sediments but not in the mobile phases of soils. In the mobile phase of volcanic ash, P was found but it did not exist in the first phase of soil and sediments. These results suggest the different chemical fingerprints in the water sediments and surrounding soil.
PB  - MDPI
T2  - Water
T1  - Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential
VL  - 13
IS  - 14
SP  - 1928
DO  - 10.3390/w13141928
ER  - 

@article{
author = "Đorđević, Dragana and Sakan, Sanja and Trifunović, Snežana and Škrivanj, Sandra and Finger, David Christian",
year = "2021",
abstract = "In this work, we present the results of element content in river sediments and soil of the Rangárvellir river in southern Iceland as well as in the volcano ash from the Eyjafjallajökull eruption in 2010. Severe natural catastrophes have devastating impact on the environment. We selected the Rangárvellir area located in the vicinity of Mt Hekla, Iceland’s most active volcano, for our study. This study site is ideal to investigate wind and water erosion and sediment transport processes of two main glaciers rivers: the Eystri-Rangá and the Ytri-Rangá and the Hroarslækur River. Sediments of these rivers consist of volcano materials, ash and lava. In order to assess the sediment dynamics, we collected sediment, soil and volcanic ash. The fractioning of the elements was carried out using sequential extractions. The distribution of Si indicates that the sediments originate from the same geochemical basis. Li and partly B exist in the first phase of volcanic ash and river sediments but not in the mobile phases of soils. In the mobile phase of volcanic ash, P was found but it did not exist in the first phase of soil and sediments. These results suggest the different chemical fingerprints in the water sediments and surrounding soil.",
publisher = "MDPI",
journal = "Water",
title = "Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential",
volume = "13",
number = "14",
pages = "1928",
doi = "10.3390/w13141928"
}

Đorđević, D., Sakan, S., Trifunović, S., Škrivanj, S.,& Finger, D. C.. (2021). Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential. in Water
MDPI., 13(14), 1928.
https://doi.org/10.3390/w13141928

Đorđević D, Sakan S, Trifunović S, Škrivanj S, Finger DC. Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential. in Water. 2021;13(14):1928.
doi:10.3390/w13141928 .

Đorđević, Dragana, Sakan, Sanja, Trifunović, Snežana, Škrivanj, Sandra, Finger, David Christian, "Element Content in Volcano Ash, Soil and River Sediments of the Watershed in the Volcanic Area of South Iceland and Assessment of Their Mobility Potential" in Water, 13, no. 14 (2021):1928,
https://doi.org/10.3390/w13141928 . .

TY  - JOUR
AU  - Pavlović, Pavle
AU  - Marković, Milica
AU  - Kostić, Olga
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Perović, Veljko
AU  - Pavlović, Dragana
AU  - Pavlović, Marija
AU  - Čakmak, Dragan
AU  - Jarić, Snežana
AU  - Paunović, Momir
AU  - Mitrović, Miroslava
PY  - 2020
UR  - https://www.sciencedirect.com/science/article/pii/S0341816219303728?dgcid=coauthor
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3312
PB  - Elsevier
T2  - CATENA
T1  - Response to Comments by T. Matys Grygar (2019) on “Evaluation of potentially toxic element contamination in the riparian zone of the River Sava”
VL  - 185
SP  - 104230
DO  - 10.1016/J.CATENA.2019.104230
ER  - 

@article{
author = "Pavlović, Pavle and Marković, Milica and Kostić, Olga and Sakan, Sanja and Đorđević, Dragana and Perović, Veljko and Pavlović, Dragana and Pavlović, Marija and Čakmak, Dragan and Jarić, Snežana and Paunović, Momir and Mitrović, Miroslava",
year = "2020",
publisher = "Elsevier",
journal = "CATENA",
title = "Response to Comments by T. Matys Grygar (2019) on “Evaluation of potentially toxic element contamination in the riparian zone of the River Sava”",
volume = "185",
pages = "104230",
doi = "10.1016/J.CATENA.2019.104230"
}

Pavlović, P., Marković, M., Kostić, O., Sakan, S., Đorđević, D., Perović, V., Pavlović, D., Pavlović, M., Čakmak, D., Jarić, S., Paunović, M.,& Mitrović, M.. (2020). Response to Comments by T. Matys Grygar (2019) on “Evaluation of potentially toxic element contamination in the riparian zone of the River Sava”. in CATENA
Elsevier., 185, 104230.
https://doi.org/10.1016/J.CATENA.2019.104230

Pavlović P, Marković M, Kostić O, Sakan S, Đorđević D, Perović V, Pavlović D, Pavlović M, Čakmak D, Jarić S, Paunović M, Mitrović M. Response to Comments by T. Matys Grygar (2019) on “Evaluation of potentially toxic element contamination in the riparian zone of the River Sava”. in CATENA. 2020;185:104230.
doi:10.1016/J.CATENA.2019.104230 .

Pavlović, Pavle, Marković, Milica, Kostić, Olga, Sakan, Sanja, Đorđević, Dragana, Perović, Veljko, Pavlović, Dragana, Pavlović, Marija, Čakmak, Dragan, Jarić, Snežana, Paunović, Momir, Mitrović, Miroslava, "Response to Comments by T. Matys Grygar (2019) on “Evaluation of potentially toxic element contamination in the riparian zone of the River Sava”" in CATENA, 185 (2020):104230,
https://doi.org/10.1016/J.CATENA.2019.104230 . .

TY  - JOUR
AU  - Sakan, Sanja
AU  - Frančišković-Bilinski, Stanislav
AU  - Đorđević, Dragana
AU  - Popović, Aleksandar R.
AU  - Škrivanj, Sandra
AU  - Bilinski, Halka
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3645
AB  - This study investigated the quality of Kupa River sediment using sequential extraction,
ecological risk, and contamination indexes (Risk assessment code, Index of geoaccumulation,
Enrichment factor, Ecological risk factor, Ecological risk index), determination of magnetic
susceptibility of sediments, and statistical methods. The BCR sequential extraction technique
was used for evaluating various element-binding forms. Most of the elements were considered to
be immobile due to the high availability in the residual fraction. Lead was present mainly in the
reducible fraction, while more easily mobile and bioavailable forms were predominant for cadmium
and barium. Sediment samples from the river catchment exhibited low ecological risk. The most
toxic element, Cd, is the main contributor to the total potentially ecological risk. Increased values
of contamination factors have been observed for Zn, Cr, and Ba in some localities. Results of the
comparison of element contents in sediments in a 15-year period (2018 vs. 2003) indicated that the
situation with toxic element content in sediments along Kupa River improved formost of its course.
Unfortunately, on the lower course of the river, the situation has worsened. Using the example of
Kupa River sediments, it was shown that the magnetic susceptibility method is excellent indetecting
increased values of Cr.
PB  - MDPI
T2  - Water
T1  - Geochemical Fractionation and Risk Assessment of Potentially Toxic Elements in Sediments from Kupa River, Croatia
VL  - 12
IS  - 7
SP  - 2024
DO  - 10.3390/w12072024
ER  - 

@article{
author = "Sakan, Sanja and Frančišković-Bilinski, Stanislav and Đorđević, Dragana and Popović, Aleksandar R. and Škrivanj, Sandra and Bilinski, Halka",
year = "2020",
abstract = "This study investigated the quality of Kupa River sediment using sequential extraction,
ecological risk, and contamination indexes (Risk assessment code, Index of geoaccumulation,
Enrichment factor, Ecological risk factor, Ecological risk index), determination of magnetic
susceptibility of sediments, and statistical methods. The BCR sequential extraction technique
was used for evaluating various element-binding forms. Most of the elements were considered to
be immobile due to the high availability in the residual fraction. Lead was present mainly in the
reducible fraction, while more easily mobile and bioavailable forms were predominant for cadmium
and barium. Sediment samples from the river catchment exhibited low ecological risk. The most
toxic element, Cd, is the main contributor to the total potentially ecological risk. Increased values
of contamination factors have been observed for Zn, Cr, and Ba in some localities. Results of the
comparison of element contents in sediments in a 15-year period (2018 vs. 2003) indicated that the
situation with toxic element content in sediments along Kupa River improved formost of its course.
Unfortunately, on the lower course of the river, the situation has worsened. Using the example of
Kupa River sediments, it was shown that the magnetic susceptibility method is excellent indetecting
increased values of Cr.",
publisher = "MDPI",
journal = "Water",
title = "Geochemical Fractionation and Risk Assessment of Potentially Toxic Elements in Sediments from Kupa River, Croatia",
volume = "12",
number = "7",
pages = "2024",
doi = "10.3390/w12072024"
}

Sakan, S., Frančišković-Bilinski, S., Đorđević, D., Popović, A. R., Škrivanj, S.,& Bilinski, H.. (2020). Geochemical Fractionation and Risk Assessment of Potentially Toxic Elements in Sediments from Kupa River, Croatia. in Water
MDPI., 12(7), 2024.
https://doi.org/10.3390/w12072024

Sakan S, Frančišković-Bilinski S, Đorđević D, Popović AR, Škrivanj S, Bilinski H. Geochemical Fractionation and Risk Assessment of Potentially Toxic Elements in Sediments from Kupa River, Croatia. in Water. 2020;12(7):2024.
doi:10.3390/w12072024 .

Sakan, Sanja, Frančišković-Bilinski, Stanislav, Đorđević, Dragana, Popović, Aleksandar R., Škrivanj, Sandra, Bilinski, Halka, "Geochemical Fractionation and Risk Assessment of Potentially Toxic Elements in Sediments from Kupa River, Croatia" in Water, 12, no. 7 (2020):2024,
https://doi.org/10.3390/w12072024 . .

TY  - JOUR
AU  - Đorđević, Dragana
AU  - Đuričić-Milanković, Jelena
AU  - Pantelić, Ana
AU  - Petrović, Srđan
AU  - Gambaro, Andrea
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3350
AB  - The main aim of this work is characterization of atmospheric aerosol using 11 stage cascade impactor. The first investigation of size-segregated sub-urban aerosols from the continental part of the Balkan peninsula in 11 fractions in the range of 0.0085 < Dp < 16 μm was performed from March 2012 to December 2013. Aerosols were measured at the Zeleno Brdo observatory (ϕ = 44°48’; λ = 20°28′–243 m above sea level), the highest landmark on the eastern side of Belgrade. Zeleno Brdo is surrounded by wooded vegetation and comprises of both southern facing rural and north-west orientated urban areas. About 70% of total aerosols are fine particles, belonging especially to the PM0.53–1.06 fraction which is found to be more pronounced in winter period. In this work, we applied tests of probability function models for three distributions: normal, log-normal and three-parameter Weibull, by comparing expected and observed values. We found that these models offer the possibility to determine whether the dominant emission source was the vicinity or distance of the measuring point. Results of this test could be a significant supplement to existing multivariate mathematical models for source apportionment, providing accurate estimation of the origin of emission sources and offering information on their position relative to the investigated area (local, regional or remote). In addition, the dependence of particle concentrations for each fraction investigated versus meteorological parameters was determined.
PB  - Elsevier
T2  - Atmospheric Pollution Research
T1  - Coarse, fine and ultrafine particles of sub-urban continental aerosols measured using an 11-stage Berner cascade impactor
VL  - 11
IS  - 3
SP  - 499
EP  - 510
DO  - 10.1016/j.apr.2019.11.022
ER  - 

@article{
author = "Đorđević, Dragana and Đuričić-Milanković, Jelena and Pantelić, Ana and Petrović, Srđan and Gambaro, Andrea",
year = "2020",
abstract = "The main aim of this work is characterization of atmospheric aerosol using 11 stage cascade impactor. The first investigation of size-segregated sub-urban aerosols from the continental part of the Balkan peninsula in 11 fractions in the range of 0.0085 < Dp < 16 μm was performed from March 2012 to December 2013. Aerosols were measured at the Zeleno Brdo observatory (ϕ = 44°48’; λ = 20°28′–243 m above sea level), the highest landmark on the eastern side of Belgrade. Zeleno Brdo is surrounded by wooded vegetation and comprises of both southern facing rural and north-west orientated urban areas. About 70% of total aerosols are fine particles, belonging especially to the PM0.53–1.06 fraction which is found to be more pronounced in winter period. In this work, we applied tests of probability function models for three distributions: normal, log-normal and three-parameter Weibull, by comparing expected and observed values. We found that these models offer the possibility to determine whether the dominant emission source was the vicinity or distance of the measuring point. Results of this test could be a significant supplement to existing multivariate mathematical models for source apportionment, providing accurate estimation of the origin of emission sources and offering information on their position relative to the investigated area (local, regional or remote). In addition, the dependence of particle concentrations for each fraction investigated versus meteorological parameters was determined.",
publisher = "Elsevier",
journal = "Atmospheric Pollution Research",
title = "Coarse, fine and ultrafine particles of sub-urban continental aerosols measured using an 11-stage Berner cascade impactor",
volume = "11",
number = "3",
pages = "499-510",
doi = "10.1016/j.apr.2019.11.022"
}

Đorđević, D., Đuričić-Milanković, J., Pantelić, A., Petrović, S.,& Gambaro, A.. (2020). Coarse, fine and ultrafine particles of sub-urban continental aerosols measured using an 11-stage Berner cascade impactor. in Atmospheric Pollution Research
Elsevier., 11(3), 499-510.
https://doi.org/10.1016/j.apr.2019.11.022

Đorđević D, Đuričić-Milanković J, Pantelić A, Petrović S, Gambaro A. Coarse, fine and ultrafine particles of sub-urban continental aerosols measured using an 11-stage Berner cascade impactor. in Atmospheric Pollution Research. 2020;11(3):499-510.
doi:10.1016/j.apr.2019.11.022 .

Đorđević, Dragana, Đuričić-Milanković, Jelena, Pantelić, Ana, Petrović, Srđan, Gambaro, Andrea, "Coarse, fine and ultrafine particles of sub-urban continental aerosols measured using an 11-stage Berner cascade impactor" in Atmospheric Pollution Research, 11, no. 3 (2020):499-510,
https://doi.org/10.1016/j.apr.2019.11.022 . .

TY  - JOUR
AU  - Xu, Jingsha
AU  - Song, Shaojie
AU  - Harrison, Roy M.
AU  - Song, Congbo
AU  - Wei, Lianfang
AU  - Zhang, Qiang
AU  - Sun, Yele
AU  - Lei, Lu
AU  - Zhang, Chao
AU  - Yao, Xiaohong
AU  - Chen, Dihui
AU  - Li, Weijun
AU  - Wu, Miaomiao
AU  - Tian, Hezhong
AU  - Luo, Lining
AU  - Tong, Shengrui
AU  - Li, Weiran
AU  - Wang, Junling
AU  - Shi, Guoliang
AU  - Huangfu, Yanqi
AU  - Tian, Yingze
AU  - Ge, Baozhu
AU  - Su, Shaoli
AU  - Peng, Chao
AU  - Chen, Yang
AU  - Yang, Fumo
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Đorđević, Dragana
AU  - Swift, Stefan J.
AU  - Andrews, Imogen
AU  - Hamilton, Jacqueline F.
AU  - Sun, Ye
AU  - Kramawijaya, Agung
AU  - Han, Jinxiu
AU  - Saksakulkrai, Supattarachai
AU  - Baldo, Clarissa
AU  - Hou, Siqi
AU  - Zheng, Feixue
AU  - Daellenbach, Kaspar R.
AU  - Yan, Chao
AU  - Liu, Yongchun
AU  - Kulmala, Markku
AU  - Fu, Pingqing
AU  - Shi, Zongbo
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4050
AB  - Water-soluble inorganic ions such as ammonium, nitrate and sulfate are major components of fine aerosols in the atmosphere and are widely used in the estimation of aerosol acidity. However, different experimental practices and instrumentation may lead to uncertainties in ion concentrations. Here, an intercomparison experiment was conducted in 10 different laboratories (labs) to investigate the consistency of inorganic ion concentrations and resultant aerosol acidity estimates using the same set of aerosol filter samples. The results mostly exhibited good agreement for major ions Cl−, SO2−4, NO−3, NH+4 and K+. However, F−, Mg2+ and Ca2+ were observed with more variations across the different labs. The Aerosol Chemical Speciation Monitor (ACSM) data of nonrefractory SO2−4, NO−3 and NH+4 generally correlated very well with the filter-analysis-based data in our study, but the absolute concentrations differ by up to 42 %. Cl− from the two methods are correlated, but the concentration differ by more than a factor of 3. The analyses of certified reference materials (CRMs) generally showed a good detection accuracy (DA) of all ions in all the labs, the majority of which ranged between 90 % and 110 %. The DA was also used to correct the ion concentrations to showcase the importance of using CRMs for calibration check and quality control. Better agreements were found for Cl−, SO2−4, NO−3, NH+4 and K+ across the labs after their concentrations were corrected with DA; the coefficient of variation (CV) of Cl−, SO2−4, NO−3, NH+4 and K+ decreased by 1.7 %, 3.4 %, 3.4 %, 1.2 % and 2.6 %, respectively, after DA correction. We found that the ratio of anion to cation equivalent concentrations (AE / CE) and ion balance (anions–cations) are not good indicators for aerosol acidity estimates, as the results in different labs did not agree well with each other. In situ aerosol pH calculated from the ISORROPIA II thermodynamic equilibrium model with measured ion and ammonia concentrations showed a similar trend and good agreement across the 10 labs. Our results indicate that although there are important uncertainties in aerosol ion concentration measurements, the estimated aerosol pH from the ISORROPIA II model is more consistent.
PB  - Copernicus GmbH
T2  - Atmospheric Measurement Techniques
T1  - An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography:  implications for aerosol pH estimate
VL  - 13
IS  - 11
SP  - 6325
EP  - 6341
DO  - 10.5194/amt-13-6325-2020
ER  - 

@article{
author = "Xu, Jingsha and Song, Shaojie and Harrison, Roy M. and Song, Congbo and Wei, Lianfang and Zhang, Qiang and Sun, Yele and Lei, Lu and Zhang, Chao and Yao, Xiaohong and Chen, Dihui and Li, Weijun and Wu, Miaomiao and Tian, Hezhong and Luo, Lining and Tong, Shengrui and Li, Weiran and Wang, Junling and Shi, Guoliang and Huangfu, Yanqi and Tian, Yingze and Ge, Baozhu and Su, Shaoli and Peng, Chao and Chen, Yang and Yang, Fumo and Mihajlidi-Zelić, Aleksandra and Đorđević, Dragana and Swift, Stefan J. and Andrews, Imogen and Hamilton, Jacqueline F. and Sun, Ye and Kramawijaya, Agung and Han, Jinxiu and Saksakulkrai, Supattarachai and Baldo, Clarissa and Hou, Siqi and Zheng, Feixue and Daellenbach, Kaspar R. and Yan, Chao and Liu, Yongchun and Kulmala, Markku and Fu, Pingqing and Shi, Zongbo",
year = "2020",
abstract = "Water-soluble inorganic ions such as ammonium, nitrate and sulfate are major components of fine aerosols in the atmosphere and are widely used in the estimation of aerosol acidity. However, different experimental practices and instrumentation may lead to uncertainties in ion concentrations. Here, an intercomparison experiment was conducted in 10 different laboratories (labs) to investigate the consistency of inorganic ion concentrations and resultant aerosol acidity estimates using the same set of aerosol filter samples. The results mostly exhibited good agreement for major ions Cl−, SO2−4, NO−3, NH+4 and K+. However, F−, Mg2+ and Ca2+ were observed with more variations across the different labs. The Aerosol Chemical Speciation Monitor (ACSM) data of nonrefractory SO2−4, NO−3 and NH+4 generally correlated very well with the filter-analysis-based data in our study, but the absolute concentrations differ by up to 42 %. Cl− from the two methods are correlated, but the concentration differ by more than a factor of 3. The analyses of certified reference materials (CRMs) generally showed a good detection accuracy (DA) of all ions in all the labs, the majority of which ranged between 90 % and 110 %. The DA was also used to correct the ion concentrations to showcase the importance of using CRMs for calibration check and quality control. Better agreements were found for Cl−, SO2−4, NO−3, NH+4 and K+ across the labs after their concentrations were corrected with DA; the coefficient of variation (CV) of Cl−, SO2−4, NO−3, NH+4 and K+ decreased by 1.7 %, 3.4 %, 3.4 %, 1.2 % and 2.6 %, respectively, after DA correction. We found that the ratio of anion to cation equivalent concentrations (AE / CE) and ion balance (anions–cations) are not good indicators for aerosol acidity estimates, as the results in different labs did not agree well with each other. In situ aerosol pH calculated from the ISORROPIA II thermodynamic equilibrium model with measured ion and ammonia concentrations showed a similar trend and good agreement across the 10 labs. Our results indicate that although there are important uncertainties in aerosol ion concentration measurements, the estimated aerosol pH from the ISORROPIA II model is more consistent.",
publisher = "Copernicus GmbH",
journal = "Atmospheric Measurement Techniques",
title = "An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography:  implications for aerosol pH estimate",
volume = "13",
number = "11",
pages = "6325-6341",
doi = "10.5194/amt-13-6325-2020"
}

Xu, J., Song, S., Harrison, R. M., Song, C., Wei, L., Zhang, Q., Sun, Y., Lei, L., Zhang, C., Yao, X., Chen, D., Li, W., Wu, M., Tian, H., Luo, L., Tong, S., Li, W., Wang, J., Shi, G., Huangfu, Y., Tian, Y., Ge, B., Su, S., Peng, C., Chen, Y., Yang, F., Mihajlidi-Zelić, A., Đorđević, D., Swift, S. J., Andrews, I., Hamilton, J. F., Sun, Y., Kramawijaya, A., Han, J., Saksakulkrai, S., Baldo, C., Hou, S., Zheng, F., Daellenbach, K. R., Yan, C., Liu, Y., Kulmala, M., Fu, P.,& Shi, Z.. (2020). An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography:  implications for aerosol pH estimate. in Atmospheric Measurement Techniques
Copernicus GmbH., 13(11), 6325-6341.
https://doi.org/10.5194/amt-13-6325-2020

Xu J, Song S, Harrison RM, Song C, Wei L, Zhang Q, Sun Y, Lei L, Zhang C, Yao X, Chen D, Li W, Wu M, Tian H, Luo L, Tong S, Li W, Wang J, Shi G, Huangfu Y, Tian Y, Ge B, Su S, Peng C, Chen Y, Yang F, Mihajlidi-Zelić A, Đorđević D, Swift SJ, Andrews I, Hamilton JF, Sun Y, Kramawijaya A, Han J, Saksakulkrai S, Baldo C, Hou S, Zheng F, Daellenbach KR, Yan C, Liu Y, Kulmala M, Fu P, Shi Z. An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography:  implications for aerosol pH estimate. in Atmospheric Measurement Techniques. 2020;13(11):6325-6341.
doi:10.5194/amt-13-6325-2020 .

Xu, Jingsha, Song, Shaojie, Harrison, Roy M., Song, Congbo, Wei, Lianfang, Zhang, Qiang, Sun, Yele, Lei, Lu, Zhang, Chao, Yao, Xiaohong, Chen, Dihui, Li, Weijun, Wu, Miaomiao, Tian, Hezhong, Luo, Lining, Tong, Shengrui, Li, Weiran, Wang, Junling, Shi, Guoliang, Huangfu, Yanqi, Tian, Yingze, Ge, Baozhu, Su, Shaoli, Peng, Chao, Chen, Yang, Yang, Fumo, Mihajlidi-Zelić, Aleksandra, Đorđević, Dragana, Swift, Stefan J., Andrews, Imogen, Hamilton, Jacqueline F., Sun, Ye, Kramawijaya, Agung, Han, Jinxiu, Saksakulkrai, Supattarachai, Baldo, Clarissa, Hou, Siqi, Zheng, Feixue, Daellenbach, Kaspar R., Yan, Chao, Liu, Yongchun, Kulmala, Markku, Fu, Pingqing, Shi, Zongbo, "An interlaboratory comparison of aerosol inorganic ion measurements by ion chromatography:  implications for aerosol pH estimate" in Atmospheric Measurement Techniques, 13, no. 11 (2020):6325-6341,
https://doi.org/10.5194/amt-13-6325-2020 . .

TY  - JOUR
AU  - Pantović Spajić, Katarina
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Šoštarić, Tatjana
AU  - Lopičić, Zorica
AU  - Janićijević, Aleksandra
AU  - Stojanović, Ksenija
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7489
AB  - The purpose of this paper was to investigate the effectiveness of three different extraction agents for the extraction of 25 elements from sediment samples collected from 4 artificial lakes and 12 rivers in Serbia (33 samples in total). The extraction efficiency of the agents was evaluated by its ability to extract the highest quantity of the elements. For that purpose, three acids (1M HCl, 2M HNO3 and 0.43M CH3COOH) have been used. Inductively coupled plasma atomic emission spectrometry (ICP-OES) was used for quantitative determination of following elements: Al, As, B, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, Li, Mg, Mn, Ni, Na, Pb, Sb, Se, Sr, V, and Zn. The extraction with 1M HCl has shown the best results for the majority of investigated elements (especially Sr, Mn and Ca). Antimony (Sb) was detected only after extraction with 0.43M CH3COOOH, while selenium (Se) could not be detected when 2M HNO3 was applied as extraction agents. The present study could be very useful for choosing a suitable method for specific elements and also can be helpful in the evaluation of the contaminants in freshwater sediments in Serbia. This might contribute to environmental risk assessment of the present elements.
T2  - Acta Periodica Technologica
T1  - Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia
VL  - 50
SP  - 189
EP  - 196
DO  - 10.2298/APT1950189P
ER  - 

@article{
author = "Pantović Spajić, Katarina and Sakan, Sanja and Đorđević, Dragana and Šoštarić, Tatjana and Lopičić, Zorica and Janićijević, Aleksandra and Stojanović, Ksenija",
year = "2019",
abstract = "The purpose of this paper was to investigate the effectiveness of three different extraction agents for the extraction of 25 elements from sediment samples collected from 4 artificial lakes and 12 rivers in Serbia (33 samples in total). The extraction efficiency of the agents was evaluated by its ability to extract the highest quantity of the elements. For that purpose, three acids (1M HCl, 2M HNO3 and 0.43M CH3COOH) have been used. Inductively coupled plasma atomic emission spectrometry (ICP-OES) was used for quantitative determination of following elements: Al, As, B, Ba, Be, Bi, Ca, Cd, Cr, Co, Cu, Fe, Hg, K, Li, Mg, Mn, Ni, Na, Pb, Sb, Se, Sr, V, and Zn. The extraction with 1M HCl has shown the best results for the majority of investigated elements (especially Sr, Mn and Ca). Antimony (Sb) was detected only after extraction with 0.43M CH3COOOH, while selenium (Se) could not be detected when 2M HNO3 was applied as extraction agents. The present study could be very useful for choosing a suitable method for specific elements and also can be helpful in the evaluation of the contaminants in freshwater sediments in Serbia. This might contribute to environmental risk assessment of the present elements.",
journal = "Acta Periodica Technologica",
title = "Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia",
volume = "50",
pages = "189-196",
doi = "10.2298/APT1950189P"
}

Pantović Spajić, K., Sakan, S., Đorđević, D., Šoštarić, T., Lopičić, Z., Janićijević, A.,& Stojanović, K.. (2019). Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia. in Acta Periodica Technologica, 50, 189-196.
https://doi.org/10.2298/APT1950189P

Pantović Spajić K, Sakan S, Đorđević D, Šoštarić T, Lopičić Z, Janićijević A, Stojanović K. Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia. in Acta Periodica Technologica. 2019;50:189-196.
doi:10.2298/APT1950189P .

Pantović Spajić, Katarina, Sakan, Sanja, Đorđević, Dragana, Šoštarić, Tatjana, Lopičić, Zorica, Janićijević, Aleksandra, Stojanović, Ksenija, "Comparison of extraction agents for metal determination in sediments from artificial lakes and rivers in Serbia" in Acta Periodica Technologica, 50 (2019):189-196,
https://doi.org/10.2298/APT1950189P . .

TY  - JOUR
AU  - Pavlović, Pavle
AU  - Marković, M.
AU  - Kostić, Olga
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Perović, Veljko
AU  - Pavlović, D.
AU  - Pavlović, Marija
AU  - Čakmak, Dragan
AU  - Jarić, S.
AU  - Paunović, M.
AU  - Mitrović, M.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2499
AB  - Contaminated sediments transported onto the river terrace during high water events can contribute significant quantities of potentially toxic elements to riparian soils. Seven trace elements (As, Cd, Cr, Cu, Ni, Pb and Zn) were analysed in the river sediment and riparian soil of the River Sava and their spatial distribution, potential toxicity and ecological risk levels were evaluated. The results showed that levels of all the trace metals were enriched to varying extents in both the sediment (As, Cr, Ni, and Pb) and soil (Ni) when compared to reference levels for sediments and European soils. Mean concentrations of trace metals in sediment and soil, apart from Pb, increased downstream in the River Sava. The similar increasing trend of these elements in sediment and soil may be explained by their increased load due to anthropogenic pressures (As, Cr, Ni, Pb and Zn in sediment and the significant accumulation of Ni in soil) and frequent periodic flooding (As, Cd, Cr, Cu, Ni and Zn in sediment and Cd in soil are influenced by both high water events and natural factors such as the geological substrate), particularly in lowland regions. In this study, soluble As, Cd, Cr, Cu and Ni fractions in sediment and soil  LT 10% indicated their low mobility. The exceptions were readily soluble Pb and Zn in the sediment and soil at some sampling sites. In the lower reaches, levels of Pb in sediment was indicative of a medium environmental hazard, while there was a high environmental hazard in the upper reaches with the average Pb content in sediment higher than the PEL. Pollution factors for Pb in soil indicated a medium environmental hazard in the upper and middle reaches and a high environmental hazard at some sites in the lower stretches of the Sava River, although total Pb content in soil was within the range proposed for European soils.
PB  - Elsevier
T2  - Catena
T1  - Evaluation of potentially toxic element contamination in the riparian zone of the River Sava
VL  - 174
SP  - 399
EP  - 412
DO  - 10.1016/j.catena.2018.11.034
ER  - 

@article{
author = "Pavlović, Pavle and Marković, M. and Kostić, Olga and Sakan, Sanja and Đorđević, Dragana and Perović, Veljko and Pavlović, D. and Pavlović, Marija and Čakmak, Dragan and Jarić, S. and Paunović, M. and Mitrović, M.",
year = "2019",
abstract = "Contaminated sediments transported onto the river terrace during high water events can contribute significant quantities of potentially toxic elements to riparian soils. Seven trace elements (As, Cd, Cr, Cu, Ni, Pb and Zn) were analysed in the river sediment and riparian soil of the River Sava and their spatial distribution, potential toxicity and ecological risk levels were evaluated. The results showed that levels of all the trace metals were enriched to varying extents in both the sediment (As, Cr, Ni, and Pb) and soil (Ni) when compared to reference levels for sediments and European soils. Mean concentrations of trace metals in sediment and soil, apart from Pb, increased downstream in the River Sava. The similar increasing trend of these elements in sediment and soil may be explained by their increased load due to anthropogenic pressures (As, Cr, Ni, Pb and Zn in sediment and the significant accumulation of Ni in soil) and frequent periodic flooding (As, Cd, Cr, Cu, Ni and Zn in sediment and Cd in soil are influenced by both high water events and natural factors such as the geological substrate), particularly in lowland regions. In this study, soluble As, Cd, Cr, Cu and Ni fractions in sediment and soil  LT 10% indicated their low mobility. The exceptions were readily soluble Pb and Zn in the sediment and soil at some sampling sites. In the lower reaches, levels of Pb in sediment was indicative of a medium environmental hazard, while there was a high environmental hazard in the upper reaches with the average Pb content in sediment higher than the PEL. Pollution factors for Pb in soil indicated a medium environmental hazard in the upper and middle reaches and a high environmental hazard at some sites in the lower stretches of the Sava River, although total Pb content in soil was within the range proposed for European soils.",
publisher = "Elsevier",
journal = "Catena",
title = "Evaluation of potentially toxic element contamination in the riparian zone of the River Sava",
volume = "174",
pages = "399-412",
doi = "10.1016/j.catena.2018.11.034"
}

Pavlović, P., Marković, M., Kostić, O., Sakan, S., Đorđević, D., Perović, V., Pavlović, D., Pavlović, M., Čakmak, D., Jarić, S., Paunović, M.,& Mitrović, M.. (2019). Evaluation of potentially toxic element contamination in the riparian zone of the River Sava. in Catena
Elsevier., 174, 399-412.
https://doi.org/10.1016/j.catena.2018.11.034

Pavlović P, Marković M, Kostić O, Sakan S, Đorđević D, Perović V, Pavlović D, Pavlović M, Čakmak D, Jarić S, Paunović M, Mitrović M. Evaluation of potentially toxic element contamination in the riparian zone of the River Sava. in Catena. 2019;174:399-412.
doi:10.1016/j.catena.2018.11.034 .

Pavlović, Pavle, Marković, M., Kostić, Olga, Sakan, Sanja, Đorđević, Dragana, Perović, Veljko, Pavlović, D., Pavlović, Marija, Čakmak, Dragan, Jarić, S., Paunović, M., Mitrović, M., "Evaluation of potentially toxic element contamination in the riparian zone of the River Sava" in Catena, 174 (2019):399-412,
https://doi.org/10.1016/j.catena.2018.11.034 . .

TY  - CONF
AU  - Đorđević, Dragana
AU  - Popović, Aleksandar
AU  - Sakan, Sanja
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Relić, Dubravka
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6853
AB  - Still, now the main energy production in Serbia (70%) is from low-caloric lignite of Kolubara and Kostolac basins which contain harmful elements: As, Be, Co, Mo, Mn, Ni, Pb, Se, Sb, V, U, Th, Ra, Rn etc. Six Serbian CFPPs generate about 6,000,000 t/year of ash enriched by toxic elements which are being deposited on fertile arable land and emitted in ambient air. About 1600 hectares of fertile soil is permanently contaminated with toxic elements from ash disposals endangering surface and underground waters. An increased carcinogenic risk was observed due to arsenic in ambient air, contained in 
the respiratory particles of the finest fraction. CFPPs are identified as their emission sources. In recent years, small hydropower plants have been installed on last mountains clean rivers in Serbia based on decades old echnical projects and old water data, which do not include the climate change factors. Our research has shown the consequence on Vlasina River, making it the swamp quality water and enhanced erosion processes. 
Particularly dangerous in mountainous areas is of landslides and torrential floods induced by enormous precipitation due to climate change. Problems of the water supply of Vlasotince municipality are already evident. Serbia has many other possibilities for clean and low carbon energy production: 1) biogas production from biomass with which Serbia is globally one of the richest countries, 2) in summer period Serbia is country with Mediterranean climate and solar energy is easy to use, 3) Serbia is rich with underground geothermal waters that are not used for domestic and public heating, 4) energy production from methane from farms and waste disposal, 5) wind energy etc. 
The most important approach must be towards energy efficiency in the public and domestic sector and to prosumers concept. With this approach, Serbia does not need any CFPPs and especially small hydro power plants.
PB  - Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)
C3  - International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia
T1  - Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji
SP  - 1
EP  - 8
UR  - https://hdl.handle.net/21.15107/rcub_cer_6853
ER  - 

@conference{
author = "Đorđević, Dragana and Popović, Aleksandar and Sakan, Sanja and Mihajlidi-Zelić, Aleksandra and Relić, Dubravka",
year = "2019",
abstract = "Still, now the main energy production in Serbia (70%) is from low-caloric lignite of Kolubara and Kostolac basins which contain harmful elements: As, Be, Co, Mo, Mn, Ni, Pb, Se, Sb, V, U, Th, Ra, Rn etc. Six Serbian CFPPs generate about 6,000,000 t/year of ash enriched by toxic elements which are being deposited on fertile arable land and emitted in ambient air. About 1600 hectares of fertile soil is permanently contaminated with toxic elements from ash disposals endangering surface and underground waters. An increased carcinogenic risk was observed due to arsenic in ambient air, contained in 
the respiratory particles of the finest fraction. CFPPs are identified as their emission sources. In recent years, small hydropower plants have been installed on last mountains clean rivers in Serbia based on decades old echnical projects and old water data, which do not include the climate change factors. Our research has shown the consequence on Vlasina River, making it the swamp quality water and enhanced erosion processes. 
Particularly dangerous in mountainous areas is of landslides and torrential floods induced by enormous precipitation due to climate change. Problems of the water supply of Vlasotince municipality are already evident. Serbia has many other possibilities for clean and low carbon energy production: 1) biogas production from biomass with which Serbia is globally one of the richest countries, 2) in summer period Serbia is country with Mediterranean climate and solar energy is easy to use, 3) Serbia is rich with underground geothermal waters that are not used for domestic and public heating, 4) energy production from methane from farms and waste disposal, 5) wind energy etc. 
The most important approach must be towards energy efficiency in the public and domestic sector and to prosumers concept. With this approach, Serbia does not need any CFPPs and especially small hydro power plants.",
publisher = "Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)",
journal = "International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia",
title = "Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji",
pages = "1-8",
url = "https://hdl.handle.net/21.15107/rcub_cer_6853"
}

Đorđević, D., Popović, A., Sakan, S., Mihajlidi-Zelić, A.,& Relić, D.. (2019). Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji. in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia
Belgrade : Association of Chemists and Chemical Engineers of Serbia (UHTS)., 1-8.
https://hdl.handle.net/21.15107/rcub_cer_6853

Đorđević D, Popović A, Sakan S, Mihajlidi-Zelić A, Relić D. Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji. in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia. 2019;:1-8.
https://hdl.handle.net/21.15107/rcub_cer_6853 .

Đorđević, Dragana, Popović, Aleksandar, Sakan, Sanja, Mihajlidi-Zelić, Aleksandra, Relić, Dubravka, "Problemi u životnoj sredini i po zdravlje prouzrokovani  proizvodnjom energije u Srbiji" in International scientific conference Environmental impact of illegal construction, poor planning and design IMPEDE 2019, Conference Proceeings, 10 – 11 October 2019, Belgrade, Serbia (2019):1-8,
https://hdl.handle.net/21.15107/rcub_cer_6853 .

TY  - CONF
AU  - Einar Jon, Asbjornsson
AU  - Petković, Ivana
AU  - Đorđević, Dragana
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Sakan, Sanja
AU  - Hermanska, Matylda
AU  - Finger, David Christian
PY  - 2019
UR  - https://meetingorganizer.copernicus.org/EGU2019/EGU2019-17722.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6852
AB  - Geothermal hot springs are located in various tectonic environment proving environmentally friendly energy source to fulfil energy demand. The geothermal energy sources are often associated with divergent tectonic plate boundaries as in the Icelandic case or in orogeny geological settings as in the Serbian case. The chemical composition of a hot spring is a signature of the sub-surface geology and its chemical composition. Hence, the comparison of the chemical composition of geothermal sources can help us provide more detailed information prior to sub-surface exploration. In order to assess the suitability of geothermal sources we analysed the chemical composition in Icelandic and Serbian geothermal sources. For this purpose we collected samples from various hot springs in Iceland and in Serbia and analysed them using ion chromatography (IC) to determine anion concentrations and using inductively coupled plasma-optical emission spectrometry (ICP – OES) to determine cation and other element concentrations. The preliminary results reveal that chemical composition reflects differences between locations of sampling as well as the depths from which the fluid was extracted. Preliminary data obtained from the chemical analysis from sources located near to the Ocean in Iceland indicate a high concentration of Na+, K+ and Cl- ions, revealing an inflow of sea water. The data from the chemical analysis of the samples obtained from sources in Serbia, however, shows a high concentration of Na+, Ca2+ and Mg2+. These results reveal that Serbian geothermal sources are characterized by very hard water and accordingly have to be used with precaution. Further analysis of the temporal evolution of the chemical composition is advisable before sub-surface exploration.
PB  - Copernicus Publications
C3  - Geophysical Research Abstracts
T1  - Characterisation of the chemical composition in geothermal hot springs in Iceland and Serbia
VL  - 21
SP  - EGU2019-17722
UR  - https://hdl.handle.net/21.15107/rcub_cer_6852
ER  - 

@conference{
author = "Einar Jon, Asbjornsson and Petković, Ivana and Đorđević, Dragana and Mihajlidi-Zelić, Aleksandra and Sakan, Sanja and Hermanska, Matylda and Finger, David Christian",
year = "2019",
abstract = "Geothermal hot springs are located in various tectonic environment proving environmentally friendly energy source to fulfil energy demand. The geothermal energy sources are often associated with divergent tectonic plate boundaries as in the Icelandic case or in orogeny geological settings as in the Serbian case. The chemical composition of a hot spring is a signature of the sub-surface geology and its chemical composition. Hence, the comparison of the chemical composition of geothermal sources can help us provide more detailed information prior to sub-surface exploration. In order to assess the suitability of geothermal sources we analysed the chemical composition in Icelandic and Serbian geothermal sources. For this purpose we collected samples from various hot springs in Iceland and in Serbia and analysed them using ion chromatography (IC) to determine anion concentrations and using inductively coupled plasma-optical emission spectrometry (ICP – OES) to determine cation and other element concentrations. The preliminary results reveal that chemical composition reflects differences between locations of sampling as well as the depths from which the fluid was extracted. Preliminary data obtained from the chemical analysis from sources located near to the Ocean in Iceland indicate a high concentration of Na+, K+ and Cl- ions, revealing an inflow of sea water. The data from the chemical analysis of the samples obtained from sources in Serbia, however, shows a high concentration of Na+, Ca2+ and Mg2+. These results reveal that Serbian geothermal sources are characterized by very hard water and accordingly have to be used with precaution. Further analysis of the temporal evolution of the chemical composition is advisable before sub-surface exploration.",
publisher = "Copernicus Publications",
journal = "Geophysical Research Abstracts",
title = "Characterisation of the chemical composition in geothermal hot springs in Iceland and Serbia",
volume = "21",
pages = "EGU2019-17722",
url = "https://hdl.handle.net/21.15107/rcub_cer_6852"
}

Einar Jon, A., Petković, I., Đorđević, D., Mihajlidi-Zelić, A., Sakan, S., Hermanska, M.,& Finger, D. C.. (2019). Characterisation of the chemical composition in geothermal hot springs in Iceland and Serbia. in Geophysical Research Abstracts
Copernicus Publications., 21, EGU2019-17722.
https://hdl.handle.net/21.15107/rcub_cer_6852

Einar Jon A, Petković I, Đorđević D, Mihajlidi-Zelić A, Sakan S, Hermanska M, Finger DC. Characterisation of the chemical composition in geothermal hot springs in Iceland and Serbia. in Geophysical Research Abstracts. 2019;21:EGU2019-17722.
https://hdl.handle.net/21.15107/rcub_cer_6852 .

Einar Jon, Asbjornsson, Petković, Ivana, Đorđević, Dragana, Mihajlidi-Zelić, Aleksandra, Sakan, Sanja, Hermanska, Matylda, Finger, David Christian, "Characterisation of the chemical composition in geothermal hot springs in Iceland and Serbia" in Geophysical Research Abstracts, 21 (2019):EGU2019-17722,
https://hdl.handle.net/21.15107/rcub_cer_6852 .

TY  - CONF
AU  - Frančišković-Bilinski, Stanislav
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Mihajlidi-Zelić, Aleksandra
AU  - Škrivanj, Sandra
PY  - 2019
UR  - https://meetingorganizer.copernicus.org/EGU2019/EGU2019-2182.pdf
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6854
AB  - Vlasina is a beautiful plateau in the south-east of Serbia. It is a natural protected area, known due to unspoiled nature, clean springs and Vlasina Lake, which is the largest artificial lake in Serbia, located at 1.213 m a.s.l. Vlasina River has its spring under the Vlasina Lake dam and it is about 70 km long tributary of South Morava River. Because of its location in a sparsely inhabited mountain region and because of lack of industrial pollutants in this area, Vlasina is considered to be one of the cleanest Serbian rivers.
We aim to introduce the relatively new, fast and cheap method of magnetic susceptibility (MS) in environmental research in Serbia, in addition to usually used geochemical and mineralogical methods. Until recently MS measurements have not been used for this purpose in the broader region around Serbia, e.g. first such measurements in Croatia were performed by Francišković-Bilinski (2008) on the samples from Kupa River watershed. ´
Measured MS values in Vlasina samples are mostly very low, with several locations where values are a bit higher; they range from 0.02 x 10-3 to 1.113 x 10-3 SI units.
Statistical boxplot analysis of anomalies has shown that 3 extremes (anomalies of higher degree) and 1 outlier (anomaly of lower degree) exist.
Correlation analysis between MS and measured chemical elements has shown that strong correlations do not exist. From that it could be concluded that in Vlasina samples there is no significant anthropogenic influence. In the case of Vlasina strongest correlation was observed with Mo (0.43), then with Ag (0.29). Correlations > 0.10 are determined between MS and following elements: Zn (0.17); Cu (0.12); Pb (0.17); Ba (0.13); Mn (0.10); Ti (0.20); V (0.21); In (0.16); Sn (0.16); Tm (0.10); Lu (0.12); Hg (0.16); Bi (0.13); Th (0.15) and U (0.24). Those correlations support our hypothesis about natural (geogene) origin of those elements from metamorphic rocks,
which prevail in this region.
Q-mode cluster analysis was also performed. It also supports our claim that in Vlasina region there is no significant anthropogenic influence. Cluster 1 from Vlasina is correlated with carbonates, as mean Ca value in this cluster is 8 times higher than in Cluster 2. Cluster 1 contains samples from 4 locations, which are located in the area where carbonate rocks (mainly limestones) are present. On those locations also statistical anomalies of Ca were found using boxplot method. In this carbonate cluster concentrations of majority of heavy metals are lower than in Cluster 2, also MS value is lower, what is due to the fact that in carbonates metal concentrations are naturally lower.
PB  - Copernicus Publications
C3  - Geophysical Research Abstracts
T1  - Magnetic methods applied in environmental research in Serbia for investigation of Vlasina region sediments and soils
VL  - 21
SP  - EGU2019-2182
UR  - https://hdl.handle.net/21.15107/rcub_cer_6854
ER  - 

@conference{
author = "Frančišković-Bilinski, Stanislav and Sakan, Sanja and Đorđević, Dragana and Mihajlidi-Zelić, Aleksandra and Škrivanj, Sandra",
year = "2019",
abstract = "Vlasina is a beautiful plateau in the south-east of Serbia. It is a natural protected area, known due to unspoiled nature, clean springs and Vlasina Lake, which is the largest artificial lake in Serbia, located at 1.213 m a.s.l. Vlasina River has its spring under the Vlasina Lake dam and it is about 70 km long tributary of South Morava River. Because of its location in a sparsely inhabited mountain region and because of lack of industrial pollutants in this area, Vlasina is considered to be one of the cleanest Serbian rivers.
We aim to introduce the relatively new, fast and cheap method of magnetic susceptibility (MS) in environmental research in Serbia, in addition to usually used geochemical and mineralogical methods. Until recently MS measurements have not been used for this purpose in the broader region around Serbia, e.g. first such measurements in Croatia were performed by Francišković-Bilinski (2008) on the samples from Kupa River watershed. ´
Measured MS values in Vlasina samples are mostly very low, with several locations where values are a bit higher; they range from 0.02 x 10-3 to 1.113 x 10-3 SI units.
Statistical boxplot analysis of anomalies has shown that 3 extremes (anomalies of higher degree) and 1 outlier (anomaly of lower degree) exist.
Correlation analysis between MS and measured chemical elements has shown that strong correlations do not exist. From that it could be concluded that in Vlasina samples there is no significant anthropogenic influence. In the case of Vlasina strongest correlation was observed with Mo (0.43), then with Ag (0.29). Correlations > 0.10 are determined between MS and following elements: Zn (0.17); Cu (0.12); Pb (0.17); Ba (0.13); Mn (0.10); Ti (0.20); V (0.21); In (0.16); Sn (0.16); Tm (0.10); Lu (0.12); Hg (0.16); Bi (0.13); Th (0.15) and U (0.24). Those correlations support our hypothesis about natural (geogene) origin of those elements from metamorphic rocks,
which prevail in this region.
Q-mode cluster analysis was also performed. It also supports our claim that in Vlasina region there is no significant anthropogenic influence. Cluster 1 from Vlasina is correlated with carbonates, as mean Ca value in this cluster is 8 times higher than in Cluster 2. Cluster 1 contains samples from 4 locations, which are located in the area where carbonate rocks (mainly limestones) are present. On those locations also statistical anomalies of Ca were found using boxplot method. In this carbonate cluster concentrations of majority of heavy metals are lower than in Cluster 2, also MS value is lower, what is due to the fact that in carbonates metal concentrations are naturally lower.",
publisher = "Copernicus Publications",
journal = "Geophysical Research Abstracts",
title = "Magnetic methods applied in environmental research in Serbia for investigation of Vlasina region sediments and soils",
volume = "21",
pages = "EGU2019-2182",
url = "https://hdl.handle.net/21.15107/rcub_cer_6854"
}

Frančišković-Bilinski, S., Sakan, S., Đorđević, D., Mihajlidi-Zelić, A.,& Škrivanj, S.. (2019). Magnetic methods applied in environmental research in Serbia for investigation of Vlasina region sediments and soils. in Geophysical Research Abstracts
Copernicus Publications., 21, EGU2019-2182.
https://hdl.handle.net/21.15107/rcub_cer_6854

Frančišković-Bilinski S, Sakan S, Đorđević D, Mihajlidi-Zelić A, Škrivanj S. Magnetic methods applied in environmental research in Serbia for investigation of Vlasina region sediments and soils. in Geophysical Research Abstracts. 2019;21:EGU2019-2182.
https://hdl.handle.net/21.15107/rcub_cer_6854 .

Frančišković-Bilinski, Stanislav, Sakan, Sanja, Đorđević, Dragana, Mihajlidi-Zelić, Aleksandra, Škrivanj, Sandra, "Magnetic methods applied in environmental research in Serbia for investigation of Vlasina region sediments and soils" in Geophysical Research Abstracts, 21 (2019):EGU2019-2182,
https://hdl.handle.net/21.15107/rcub_cer_6854 .

TY  - JOUR
AU  - Relić, Dubravka
AU  - Sakan, Sanja
AU  - Anđelković, Ivan
AU  - Popović, Aleksandar R.
AU  - Đorđević, Dragana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2964
AB  - The pollution state and health risk assessment of potentially toxic elements (PTE) in soil and sediment samples of the petrochemical industry and its surrounding area are evaluated in this study. The pseudo-total contents of Ba, Cd, Co, Cu, Cr, Mn, Ni, Pb, V, Zn, As, Hg, and Se were measured by inductively coupled plasma–optical emission spectrometry (ICP/OES) in analyzed samples. Instead of determining total content, we performed aqua regia of the samples. The silicate matrix remained, and the quantities of elements that are within the silicate matrix do not represent an environmental danger. The soils from the chlor–alkali plant are highly polluted by Hg (the enrichment factor values were above 6000), and by Cu, Cd, Pb, and Zn, while the sediment samples from the wastewater channel are polluted with Cr, Cd, and Hg. The measured element contents are used for calculating health risk criteria for a composite worker (a worker who is exposed, long-term, during the work day) and for residential people. Hg is the element that mainly contributes to non-carcinogenic risks within the petrochemical area. The highest value of total carcinogenic risk obtained in the sediment sample from the wastewater channel, and the metal that mostly contributes is Cr. The areas closest to the petrochemical industry have higher values of health risk criteria parameters and pollution indices. The areas that are located further to the north and south from the petrochemical industry are less burdened with the analyzed elements, which is significant because the closest city and village are situated in those directions.
PB  - MDPI
T2  - Molecules
T1  - Pollution and health risk assessments of potentially toxic elements in soil and sediment samples in a petrochemical industry and surrounding area
VL  - 24
IS  - 11
SP  - 1
EP  - 19
DO  - 10.3390/molecules24112139
ER  - 

@article{
author = "Relić, Dubravka and Sakan, Sanja and Anđelković, Ivan and Popović, Aleksandar R. and Đorđević, Dragana",
year = "2019",
abstract = "The pollution state and health risk assessment of potentially toxic elements (PTE) in soil and sediment samples of the petrochemical industry and its surrounding area are evaluated in this study. The pseudo-total contents of Ba, Cd, Co, Cu, Cr, Mn, Ni, Pb, V, Zn, As, Hg, and Se were measured by inductively coupled plasma–optical emission spectrometry (ICP/OES) in analyzed samples. Instead of determining total content, we performed aqua regia of the samples. The silicate matrix remained, and the quantities of elements that are within the silicate matrix do not represent an environmental danger. The soils from the chlor–alkali plant are highly polluted by Hg (the enrichment factor values were above 6000), and by Cu, Cd, Pb, and Zn, while the sediment samples from the wastewater channel are polluted with Cr, Cd, and Hg. The measured element contents are used for calculating health risk criteria for a composite worker (a worker who is exposed, long-term, during the work day) and for residential people. Hg is the element that mainly contributes to non-carcinogenic risks within the petrochemical area. The highest value of total carcinogenic risk obtained in the sediment sample from the wastewater channel, and the metal that mostly contributes is Cr. The areas closest to the petrochemical industry have higher values of health risk criteria parameters and pollution indices. The areas that are located further to the north and south from the petrochemical industry are less burdened with the analyzed elements, which is significant because the closest city and village are situated in those directions.",
publisher = "MDPI",
journal = "Molecules",
title = "Pollution and health risk assessments of potentially toxic elements in soil and sediment samples in a petrochemical industry and surrounding area",
volume = "24",
number = "11",
pages = "1-19",
doi = "10.3390/molecules24112139"
}

Relić, D., Sakan, S., Anđelković, I., Popović, A. R.,& Đorđević, D.. (2019). Pollution and health risk assessments of potentially toxic elements in soil and sediment samples in a petrochemical industry and surrounding area. in Molecules
MDPI., 24(11), 1-19.
https://doi.org/10.3390/molecules24112139

Relić D, Sakan S, Anđelković I, Popović AR, Đorđević D. Pollution and health risk assessments of potentially toxic elements in soil and sediment samples in a petrochemical industry and surrounding area. in Molecules. 2019;24(11):1-19.
doi:10.3390/molecules24112139 .

Relić, Dubravka, Sakan, Sanja, Anđelković, Ivan, Popović, Aleksandar R., Đorđević, Dragana, "Pollution and health risk assessments of potentially toxic elements in soil and sediment samples in a petrochemical industry and surrounding area" in Molecules, 24, no. 11 (2019):1-19,
https://doi.org/10.3390/molecules24112139 . .

TY  - JOUR
AU  - Sakan, Sanja
AU  - Sakan, Nenad
AU  - Popović, Aleksandar R.
AU  - Škrivanj, Sandra
AU  - Đorđević, Dragana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3107
AB  - The need for further research into potentially toxic elements in Serbian rivers led to an
investigation of distributions, sources, and ecological risks in a sample base of sediments from
15 rivers. The analyses were carried out through both experimental and theoretical methods.
Geochemical fractionation of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, As, V, and Zn in sediments was
studied using a sequential extraction procedure. Both a Håkanson risk index (RI) and a Monte Carlo
simulation (MCS) were used in order to estimate ecological risk, applying the probability distribution
of RI values instead of single-point calculations. In order to both further the development of the used
method and include additional processes, software for the simulations was developed instead of
using proprietary solutions. Metal fractionation showed high percentage recoveries of Cd, Cr, Co, Cu,
Fe, Ni, and V in residual fractions. The high content of Pb, Mn, and Zn in mobile fractions might
cause serious environmental concerns. In some localities, Cu and Cd could be problematic elements,
since their mobility was high. An environmental assessment based on the described criteria provided
risk levels varying from low to median (mainly contributed by Cd and Cu).
PB  - MDPI
T2  - Molecules
T1  - Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations
VL  - 24
IS  - 11
SP  - 2145
DO  - 10.3390/molecules24112145
ER  - 

@article{
author = "Sakan, Sanja and Sakan, Nenad and Popović, Aleksandar R. and Škrivanj, Sandra and Đorđević, Dragana",
year = "2019",
abstract = "The need for further research into potentially toxic elements in Serbian rivers led to an
investigation of distributions, sources, and ecological risks in a sample base of sediments from
15 rivers. The analyses were carried out through both experimental and theoretical methods.
Geochemical fractionation of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, As, V, and Zn in sediments was
studied using a sequential extraction procedure. Both a Håkanson risk index (RI) and a Monte Carlo
simulation (MCS) were used in order to estimate ecological risk, applying the probability distribution
of RI values instead of single-point calculations. In order to both further the development of the used
method and include additional processes, software for the simulations was developed instead of
using proprietary solutions. Metal fractionation showed high percentage recoveries of Cd, Cr, Co, Cu,
Fe, Ni, and V in residual fractions. The high content of Pb, Mn, and Zn in mobile fractions might
cause serious environmental concerns. In some localities, Cu and Cd could be problematic elements,
since their mobility was high. An environmental assessment based on the described criteria provided
risk levels varying from low to median (mainly contributed by Cd and Cu).",
publisher = "MDPI",
journal = "Molecules",
title = "Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations",
volume = "24",
number = "11",
pages = "2145",
doi = "10.3390/molecules24112145"
}

Sakan, S., Sakan, N., Popović, A. R., Škrivanj, S.,& Đorđević, D.. (2019). Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations. in Molecules
MDPI., 24(11), 2145.
https://doi.org/10.3390/molecules24112145

Sakan S, Sakan N, Popović AR, Škrivanj S, Đorđević D. Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations. in Molecules. 2019;24(11):2145.
doi:10.3390/molecules24112145 .

Sakan, Sanja, Sakan, Nenad, Popović, Aleksandar R., Škrivanj, Sandra, Đorđević, Dragana, "Geochemical Fractionation and Assessment of Probabilistic Ecological Risk of Potential Toxic Elements in Sediments Using Monte Carlo Simulations" in Molecules, 24, no. 11 (2019):2145,
https://doi.org/10.3390/molecules24112145 . .

TY  - CONF
AU  - Frančišković-Bilinski, Stanislav
AU  - Bilinski, Halka
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Popović, Aleksandar R.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3262
AB  - The Kupa River, located in the west-central part of Croatia, is a 294 km long tributary of the Sava River, belonging to the Danube watershed. An extreme barium anomaly in sediments of Kupica and Kupa rivers was discovered during 2003 by Frančišković-Bilinski. It originates from an abundant barite mine in Homer-Lokve area, from where it penetrated to Kupica River source. From there the Ba-anomaly in sediments was followed more than 120 km downstream along both rivers. This discovery has a big potential to be used in future sediment transport studies in rivers. Therefore, we repeated sampling on most important locations in 2018, exactly 15 years since the anomaly discovery. The sequential extraction procedure of the EC Bureau of Reference was applied to investigate the transport and fractionation of Ba. During mentioned period of 15 years following processes related with Ba-distribution were observed in fraction <63 µm: Ba-concentrations decreased more than 10 times in Kupica River, from 5790 to 385 mg/kg at Brod na Kupi and 473 mg/kg at Iševnica near the Kupica source. Also, at the first location in Kupa River after confluence with Kupica Ba-concentration decreased from 1070 to 429 mg/kg. This significant decrease is a consequence of abandoning of barite mine in 1994, after which self-purification process of Kupica and Kupa river sediments gradually started. Large quantities of Ba gradually shifted more downstream and in the middle course of the river Ba-deposition in sediments is still going on. At location Jurovo in the middle course of the river concentrations remained about the same in both years, while in Ozalj several km downstream concentration moderately decreased from 341 to 241 mg/kg. Very important finding is that Ba-anomaly in the time frame of 15 years arrived at least 50 km more downstream. Namely, in 2003 at location Pokupsko in the lower course of Kupa River, Ba-concentration was only 78.4 mg/kg, what is about the background level for this region. In 2018 Ba-concentrations significantly increased to 209 mg/kg. At the far end of the river course in Sisak, Ba-anomaly has not yet been observed - concentrations of Ba remained almost the same (65 mg/kg in 2003 and 63.8 mg/kg in 2018). From analysis of coarser sediment fraction 63-2000 µm can be concluded that barium is bound with fine particles. Results of sequential analysis showed that Ba was extracted in the following order for < 63 µm sediment fraction: reducible > residual > soluble in acid > oxidizable, while for 63-2000 µm sediment fraction: reducible > soluble in acid > residual > oxidizable. The highest Ba-content was found in reducible fraction, what indicated that Fe and Mn minerals acted as natural accumulators for Ba in investigated sediments. This association indicated that Ba was potentially extractable. It could have been mobilized from the sediment into the aquatic environment due to decomposition of Fe and Mn oxides under slightly reducing conditions.
PB  - International Multidisciplinary Scientific Geoconference
C3  - 19th International Multidisciplinary Scientific Geoconference, SGEM 2019; Albena; Bulgaria; 30 June 2019 through 6 July 2019
T1  - Changes of Ba contents in sediments of Kupa river (Croatia) 15 years after discovery of ba anomaly complemented by sequential extraction
VL  - 19
SP  - 73
EP  - 80
DO  - 10.5593/sgem2019/3.1/S12.010
ER  - 

@conference{
author = "Frančišković-Bilinski, Stanislav and Bilinski, Halka and Sakan, Sanja and Đorđević, Dragana and Popović, Aleksandar R.",
year = "2019",
abstract = "The Kupa River, located in the west-central part of Croatia, is a 294 km long tributary of the Sava River, belonging to the Danube watershed. An extreme barium anomaly in sediments of Kupica and Kupa rivers was discovered during 2003 by Frančišković-Bilinski. It originates from an abundant barite mine in Homer-Lokve area, from where it penetrated to Kupica River source. From there the Ba-anomaly in sediments was followed more than 120 km downstream along both rivers. This discovery has a big potential to be used in future sediment transport studies in rivers. Therefore, we repeated sampling on most important locations in 2018, exactly 15 years since the anomaly discovery. The sequential extraction procedure of the EC Bureau of Reference was applied to investigate the transport and fractionation of Ba. During mentioned period of 15 years following processes related with Ba-distribution were observed in fraction <63 µm: Ba-concentrations decreased more than 10 times in Kupica River, from 5790 to 385 mg/kg at Brod na Kupi and 473 mg/kg at Iševnica near the Kupica source. Also, at the first location in Kupa River after confluence with Kupica Ba-concentration decreased from 1070 to 429 mg/kg. This significant decrease is a consequence of abandoning of barite mine in 1994, after which self-purification process of Kupica and Kupa river sediments gradually started. Large quantities of Ba gradually shifted more downstream and in the middle course of the river Ba-deposition in sediments is still going on. At location Jurovo in the middle course of the river concentrations remained about the same in both years, while in Ozalj several km downstream concentration moderately decreased from 341 to 241 mg/kg. Very important finding is that Ba-anomaly in the time frame of 15 years arrived at least 50 km more downstream. Namely, in 2003 at location Pokupsko in the lower course of Kupa River, Ba-concentration was only 78.4 mg/kg, what is about the background level for this region. In 2018 Ba-concentrations significantly increased to 209 mg/kg. At the far end of the river course in Sisak, Ba-anomaly has not yet been observed - concentrations of Ba remained almost the same (65 mg/kg in 2003 and 63.8 mg/kg in 2018). From analysis of coarser sediment fraction 63-2000 µm can be concluded that barium is bound with fine particles. Results of sequential analysis showed that Ba was extracted in the following order for < 63 µm sediment fraction: reducible > residual > soluble in acid > oxidizable, while for 63-2000 µm sediment fraction: reducible > soluble in acid > residual > oxidizable. The highest Ba-content was found in reducible fraction, what indicated that Fe and Mn minerals acted as natural accumulators for Ba in investigated sediments. This association indicated that Ba was potentially extractable. It could have been mobilized from the sediment into the aquatic environment due to decomposition of Fe and Mn oxides under slightly reducing conditions.",
publisher = "International Multidisciplinary Scientific Geoconference",
journal = "19th International Multidisciplinary Scientific Geoconference, SGEM 2019; Albena; Bulgaria; 30 June 2019 through 6 July 2019",
title = "Changes of Ba contents in sediments of Kupa river (Croatia) 15 years after discovery of ba anomaly complemented by sequential extraction",
volume = "19",
pages = "73-80",
doi = "10.5593/sgem2019/3.1/S12.010"
}

Frančišković-Bilinski, S., Bilinski, H., Sakan, S., Đorđević, D.,& Popović, A. R.. (2019). Changes of Ba contents in sediments of Kupa river (Croatia) 15 years after discovery of ba anomaly complemented by sequential extraction. in 19th International Multidisciplinary Scientific Geoconference, SGEM 2019; Albena; Bulgaria; 30 June 2019 through 6 July 2019
International Multidisciplinary Scientific Geoconference., 19, 73-80.
https://doi.org/10.5593/sgem2019/3.1/S12.010

Frančišković-Bilinski S, Bilinski H, Sakan S, Đorđević D, Popović AR. Changes of Ba contents in sediments of Kupa river (Croatia) 15 years after discovery of ba anomaly complemented by sequential extraction. in 19th International Multidisciplinary Scientific Geoconference, SGEM 2019; Albena; Bulgaria; 30 June 2019 through 6 July 2019. 2019;19:73-80.
doi:10.5593/sgem2019/3.1/S12.010 .

Frančišković-Bilinski, Stanislav, Bilinski, Halka, Sakan, Sanja, Đorđević, Dragana, Popović, Aleksandar R., "Changes of Ba contents in sediments of Kupa river (Croatia) 15 years after discovery of ba anomaly complemented by sequential extraction" in 19th International Multidisciplinary Scientific Geoconference, SGEM 2019; Albena; Bulgaria; 30 June 2019 through 6 July 2019, 19 (2019):73-80,
https://doi.org/10.5593/sgem2019/3.1/S12.010 . .

TY  - JOUR
AU  - Ostojić, Bojana
AU  - Đorđević, Dragana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3899
AB  - The molecular properties of the environmental mutagens nitrofluoranthenes (NFs; 1-, 2-, 3-, 7- and 8-NF), such as (hyper)polarizability, dipole moment, molecular electrostatic potential (MEP), spectroscopic characteristics, magnetic index (NICS) and others, obtained by means of ab initio (MP2) and density functional theory (DFT) approaches have been correlated with the observed mutagenic activities. A very good linear correlation (Rav = 0.99) between average polarizability () and experimental mutagenic activities of NFs in different Salmonella typhimurium strains from two independent experimental studies (Vance and Levin, Environ. Mutagen. 6 (1984) 797 and Zielinska et al., Mutation Res. 206 (1988) 131) was established. Higher values of polarizability derivatives with respect to the νsNO+CN vibrational coordinate for 8-NF and 3-NF compared to 1-NF and 7-NF and, consequently, higher Raman activities in the spectra that are in correlation with mutagenic activities, implicate significant intermolecular interactions along this vibrational coordinate. The results indicate that the binding of NFs to enzymes is the main step in mutagenic pathway of these nitro derivatives.
AB  - Молекулске особине мутагена нитрофлуорантена (NF; 1-, 2-, 3-, 7- и 8-NF) као што су (хипер)поларизабилност, диполни момент, молекулски електростатички потенцијал (MEP), спектроскопске карактеристике, магнетни индекс (NICS) и др., добијене ab initio (MP2) и DFT приступом, корелисане су са мутагеним активностима ових изомера. Установљена је врло добра линерана корелација (Rav = 0,99) између средње поларизабилности () и експериментално одређених мутагених активности нитрофлуoрантена у различитим сојевима бактерије Salmonella typhimurium из две независне експерименталне студије (Vance and Levin, Environ. Mutagen. 6 (1984) 797 и Zielinska et al., Mutation Res. 206 (1988) 131). Веће вредности извода поларизабилности у односу на νsNO+CN вибрациону координату за 8-NF и 3-NF у поређењу са 1-NF и 7-NF и, следствено томе, веће вредности Раман активности у спектрима које су у корелацији са мутагеном активношћу, упућују на знатне молекулске интеракције дуж ове вибрационе координате. Резултати указују да је везивање изомера NF за активно место ензима главни корак у активацији мутагености код ових нитро деривата.
PB  - Serbia : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations
T1  - Uloga molekulskih osobina mononitrofluorantena u njihovoj mutagenoj aktivnosti :AB initio i DFT pristup
VL  - 84
IS  - 8
SP  - 861
EP  - 876
DO  - 10.2298/JSC190509045O
ER  - 

@article{
author = "Ostojić, Bojana and Đorđević, Dragana",
year = "2019",
abstract = "The molecular properties of the environmental mutagens nitrofluoranthenes (NFs; 1-, 2-, 3-, 7- and 8-NF), such as (hyper)polarizability, dipole moment, molecular electrostatic potential (MEP), spectroscopic characteristics, magnetic index (NICS) and others, obtained by means of ab initio (MP2) and density functional theory (DFT) approaches have been correlated with the observed mutagenic activities. A very good linear correlation (Rav = 0.99) between average polarizability () and experimental mutagenic activities of NFs in different Salmonella typhimurium strains from two independent experimental studies (Vance and Levin, Environ. Mutagen. 6 (1984) 797 and Zielinska et al., Mutation Res. 206 (1988) 131) was established. Higher values of polarizability derivatives with respect to the νsNO+CN vibrational coordinate for 8-NF and 3-NF compared to 1-NF and 7-NF and, consequently, higher Raman activities in the spectra that are in correlation with mutagenic activities, implicate significant intermolecular interactions along this vibrational coordinate. The results indicate that the binding of NFs to enzymes is the main step in mutagenic pathway of these nitro derivatives., Молекулске особине мутагена нитрофлуорантена (NF; 1-, 2-, 3-, 7- и 8-NF) као што су (хипер)поларизабилност, диполни момент, молекулски електростатички потенцијал (MEP), спектроскопске карактеристике, магнетни индекс (NICS) и др., добијене ab initio (MP2) и DFT приступом, корелисане су са мутагеним активностима ових изомера. Установљена је врло добра линерана корелација (Rav = 0,99) између средње поларизабилности () и експериментално одређених мутагених активности нитрофлуoрантена у различитим сојевима бактерије Salmonella typhimurium из две независне експерименталне студије (Vance and Levin, Environ. Mutagen. 6 (1984) 797 и Zielinska et al., Mutation Res. 206 (1988) 131). Веће вредности извода поларизабилности у односу на νsNO+CN вибрациону координату за 8-NF и 3-NF у поређењу са 1-NF и 7-NF и, следствено томе, веће вредности Раман активности у спектрима које су у корелацији са мутагеном активношћу, упућују на знатне молекулске интеракције дуж ове вибрационе координате. Резултати указују да је везивање изомера NF за активно место ензима главни корак у активацији мутагености код ових нитро деривата.",
publisher = "Serbia : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations, Uloga molekulskih osobina mononitrofluorantena u njihovoj mutagenoj aktivnosti :AB initio i DFT pristup",
volume = "84",
number = "8",
pages = "861-876",
doi = "10.2298/JSC190509045O"
}

Ostojić, B.,& Đorđević, D.. (2019). The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations. in Journal of the Serbian Chemical Society
Serbia : Serbian Chemical Society., 84(8), 861-876.
https://doi.org/10.2298/JSC190509045O

Ostojić B, Đorđević D. The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations. in Journal of the Serbian Chemical Society. 2019;84(8):861-876.
doi:10.2298/JSC190509045O .

Ostojić, Bojana, Đorđević, Dragana, "The role of molecular properties of mononitrofluoranthenes to their mutagenic activity: Insight from ab initio and DFT calculations" in Journal of the Serbian Chemical Society, 84, no. 8 (2019):861-876,
https://doi.org/10.2298/JSC190509045O . .

TY  - JOUR
AU  - Đorđević, Dragana
AU  - Tošić, Ivana
AU  - Sakan, Sanja
AU  - Petrović, Srđan
AU  - Đuričić - Milanković, Jelena
AU  - Finger, David Christian
AU  - Dagsson-Waldhauserová, Pavla
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3859
AB  - In this work we use chemical fingerprints as characteristics ratios of specific crustal elements Ca/Al, Fe/Al, K/Al, Mg/Al, Mn/Al, Ca/Fe, and Mg/Fe to investigate the long-range transport of volcanic aerosols from Iceland. Volcanic dust enters the atmosphere during suspension processes from Icelandic deserts, but mainly from the dust hot spots in remote areas in Iceland, and it is transmitted to the central Balkan area (Belgrade). For this purpose, backward trajectories from Belgrade (φ = 44°48′; λ = 20°28′) in 2012 and 2013, simultaneous with atmospheric aerosols measurements, were calculated by using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. We found that about 17% of air masses passed over Icelandic territory and arrived to Balkan area. In almost all of these episodes ratios of some investigated elements in suburban aerosols of Balkan area corresponded to the ratios of elements investigated in surface soil of the Rangárvellir area – South Iceland in the vicinity of volcanoes. We identified several episodes, such as August 6–8, 2012; June 2–6, 2013; June 26–28, 2013; and September 18–20, 2013; with the characteristic ratios of the highest number of investigated elements in atmospheric aerosol of central Balkan corresponding to ratios from Icelandic soil material. This study provides evidence that Icelandic dust can travel long distances showing the importance of High Latitude Dust sources. © 2019 Đorđević, Tošić, Sakan, Petrović, Đuričić-Milanković, Finger and Dagsson-Waldhauserová.
PB  - Switzerland : Frontiers Media S.A.
T2  - Frontiers in Earth Science
T1  - Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?
VL  - 7
SP  - 142
DO  - 10.3389/feart.2019.00142
ER  - 

@article{
author = "Đorđević, Dragana and Tošić, Ivana and Sakan, Sanja and Petrović, Srđan and Đuričić - Milanković, Jelena and Finger, David Christian and Dagsson-Waldhauserová, Pavla",
year = "2019",
abstract = "In this work we use chemical fingerprints as characteristics ratios of specific crustal elements Ca/Al, Fe/Al, K/Al, Mg/Al, Mn/Al, Ca/Fe, and Mg/Fe to investigate the long-range transport of volcanic aerosols from Iceland. Volcanic dust enters the atmosphere during suspension processes from Icelandic deserts, but mainly from the dust hot spots in remote areas in Iceland, and it is transmitted to the central Balkan area (Belgrade). For this purpose, backward trajectories from Belgrade (φ = 44°48′; λ = 20°28′) in 2012 and 2013, simultaneous with atmospheric aerosols measurements, were calculated by using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. We found that about 17% of air masses passed over Icelandic territory and arrived to Balkan area. In almost all of these episodes ratios of some investigated elements in suburban aerosols of Balkan area corresponded to the ratios of elements investigated in surface soil of the Rangárvellir area – South Iceland in the vicinity of volcanoes. We identified several episodes, such as August 6–8, 2012; June 2–6, 2013; June 26–28, 2013; and September 18–20, 2013; with the characteristic ratios of the highest number of investigated elements in atmospheric aerosol of central Balkan corresponding to ratios from Icelandic soil material. This study provides evidence that Icelandic dust can travel long distances showing the importance of High Latitude Dust sources. © 2019 Đorđević, Tošić, Sakan, Petrović, Đuričić-Milanković, Finger and Dagsson-Waldhauserová.",
publisher = "Switzerland : Frontiers Media S.A.",
journal = "Frontiers in Earth Science",
title = "Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?",
volume = "7",
pages = "142",
doi = "10.3389/feart.2019.00142"
}

Đorđević, D., Tošić, I., Sakan, S., Petrović, S., Đuričić - Milanković, J., Finger, D. C.,& Dagsson-Waldhauserová, P.. (2019). Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?. in Frontiers in Earth Science
Switzerland : Frontiers Media S.A.., 7, 142.
https://doi.org/10.3389/feart.2019.00142

Đorđević D, Tošić I, Sakan S, Petrović S, Đuričić - Milanković J, Finger DC, Dagsson-Waldhauserová P. Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?. in Frontiers in Earth Science. 2019;7:142.
doi:10.3389/feart.2019.00142 .

Đorđević, Dragana, Tošić, Ivana, Sakan, Sanja, Petrović, Srđan, Đuričić - Milanković, Jelena, Finger, David Christian, Dagsson-Waldhauserová, Pavla, "Can volcanic dust suspended from surface soil and deserts of Iceland be transferred to central Balkan similarly to African dust (Sahara)?" in Frontiers in Earth Science, 7 (2019):142,
https://doi.org/10.3389/feart.2019.00142 . .

TY  - JOUR
AU  - Pavlović, Dragana
AU  - Pavlović, Marija
AU  - Čakmak, Dragan
AU  - Kostić, Olga
AU  - Jaric, Snezana
AU  - Sakan, Sanja
AU  - Đorđević, Dragana
AU  - Mitrovic, Miroslava
AU  - Gržetić, Ivan
AU  - Pavlović, Pavle
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2433
AB  - The main soil properties, concentrations of selected elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), and the chemical speciation of each element were determined in urban soil samples taken from urban parks in four Serbian cities (Belgrade, Panevo, Obrenovac, and Smederevo) exposed to different sources of pollution. Pollution indices (PI, PIN) and factors (MF, ICF, GCF) also were evaluated. The study revealed As and Cd concentrations below the detection limit, whereas the content of Cr, Cu, Fe, Mn, Ni, Pb, and Zn at some sites exceeded the limits established by local regulations, as well as the background values, which may represent an environmental threat. Sequential extraction results show that Fe, Cr, Cu, and Ni were predominantly in the residual fraction at most sites; however, Ni from Panevo and Smederevo also was bound to the reducible fraction. The presence of Pb at all sites and Zn in Smederevo and Belgrade was mainly associated with the reducible and residual fractions. The highest Mn content was found in the reducible fraction, followed by the acid soluble/exchangeable and residual fractions. Based on the obtained indices and factors, the overall soil status at the selected sampling sites was found to range from the warning limit to slightly polluted, whereby Smederevo had the highest risk, and Panevo and the control site the lowest risk of contamination by toxic metals.
PB  - Springer, New York
T2  - Archives of Environmental Contamination and Toxicology
T1  - Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities
VL  - 75
IS  - 3
SP  - 335
EP  - 350
DO  - 10.1007/s00244-018-0518-x
ER  - 

@article{
author = "Pavlović, Dragana and Pavlović, Marija and Čakmak, Dragan and Kostić, Olga and Jaric, Snezana and Sakan, Sanja and Đorđević, Dragana and Mitrovic, Miroslava and Gržetić, Ivan and Pavlović, Pavle",
year = "2018",
abstract = "The main soil properties, concentrations of selected elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn), and the chemical speciation of each element were determined in urban soil samples taken from urban parks in four Serbian cities (Belgrade, Panevo, Obrenovac, and Smederevo) exposed to different sources of pollution. Pollution indices (PI, PIN) and factors (MF, ICF, GCF) also were evaluated. The study revealed As and Cd concentrations below the detection limit, whereas the content of Cr, Cu, Fe, Mn, Ni, Pb, and Zn at some sites exceeded the limits established by local regulations, as well as the background values, which may represent an environmental threat. Sequential extraction results show that Fe, Cr, Cu, and Ni were predominantly in the residual fraction at most sites; however, Ni from Panevo and Smederevo also was bound to the reducible fraction. The presence of Pb at all sites and Zn in Smederevo and Belgrade was mainly associated with the reducible and residual fractions. The highest Mn content was found in the reducible fraction, followed by the acid soluble/exchangeable and residual fractions. Based on the obtained indices and factors, the overall soil status at the selected sampling sites was found to range from the warning limit to slightly polluted, whereby Smederevo had the highest risk, and Panevo and the control site the lowest risk of contamination by toxic metals.",
publisher = "Springer, New York",
journal = "Archives of Environmental Contamination and Toxicology",
title = "Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities",
volume = "75",
number = "3",
pages = "335-350",
doi = "10.1007/s00244-018-0518-x"
}

Pavlović, D., Pavlović, M., Čakmak, D., Kostić, O., Jaric, S., Sakan, S., Đorđević, D., Mitrovic, M., Gržetić, I.,& Pavlović, P.. (2018). Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities. in Archives of Environmental Contamination and Toxicology
Springer, New York., 75(3), 335-350.
https://doi.org/10.1007/s00244-018-0518-x

Pavlović D, Pavlović M, Čakmak D, Kostić O, Jaric S, Sakan S, Đorđević D, Mitrovic M, Gržetić I, Pavlović P. Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities. in Archives of Environmental Contamination and Toxicology. 2018;75(3):335-350.
doi:10.1007/s00244-018-0518-x .

Pavlović, Dragana, Pavlović, Marija, Čakmak, Dragan, Kostić, Olga, Jaric, Snezana, Sakan, Sanja, Đorđević, Dragana, Mitrovic, Miroslava, Gržetić, Ivan, Pavlović, Pavle, "Fractionation, Mobility, and Contamination Assessment of Potentially Toxic Metals in Urban Soils in Four Industrial Serbian Cities" in Archives of Environmental Contamination and Toxicology, 75, no. 3 (2018):335-350,
https://doi.org/10.1007/s00244-018-0518-x . .