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Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania

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2021
FEB_18_02215_accepted.pdf (552.2Kb)
Authors
Stojadinović, Sanja
Jovančićević, Branimir
Šajnović, Aleksandra
Golumbenau, Mariana
Almasan, Roxana
Jovanović, Đorđe
Brceski, Ilija
Article (Accepted Version)
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Abstract
The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition of flora and fauna under the microbial activity (saprogenic sludge), which is used for therapeutic purposes. In this study, hydrocarbon compositions of the Techirghiol Lake mud are investigated in order to determine the origin and type of organic matter (OM). All samples are characterized by a high abundance of n-alkanes, short and high chain alkenes, pimarane, phyllocladane, indicating that OM was mainly derived from phytoplankton, filamentous green alga Cladophora vagabunda, Cyanobacteria, submerged/floating macrophytes, terrestrial and emergent plants. The terrestrial origin of organic matter is probably related to a significant input by wind or rivers. Typical oil distributions of terpanes and steranes biomarkers clearly indicate that the muds of Techirghiol Lake..., in addition to native organic matter, contain a relatively low contribution of petroleum type pollutants, as well as PAH compounds of pyrogenic origin. The relatively high abundance of 1-chloroalkenes, which in some samples represent the most abundant compounds in the total distribution of hydrocarbons, together with isoprenoid thiophenes indicate the local presence of significant amounts of chloride and sulphur species in the water column or surface sediment.

Keywords:
Techirghiol Lake / hypersaline environment / mud / biomarkers / petroleum hydrocarbons
Source:
Fresenius Environmental Bulletin, 2021
Publisher:
  • Parlar Scientific Publications
Funding / projects:
  • Geochemical investigations of sedimentary rocks - fossil fuels and environmental pollutants (RS-176006)
  • Structure-properties relationships of natural and synthetic molecules and their metal complexes (RS-172017)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200168 (University of Belgrade, Faculty of Chemistry) (RS-200168)

ISSN: 1018-4619

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_cherry_4898
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/4006
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Stojadinović, Sanja
AU  - Jovančićević, Branimir
AU  - Šajnović, Aleksandra
AU  - Golumbenau, Mariana
AU  - Almasan, Roxana
AU  - Jovanović, Đorđe
AU  - Brceski, Ilija
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4006
AB  - The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition of flora and fauna under the microbial activity (saprogenic sludge), which is used for therapeutic purposes.
In this study, hydrocarbon compositions of the Techirghiol Lake mud are investigated in order to determine the origin and type of organic matter (OM). All samples are characterized by a high abundance of n-alkanes, short and high chain alkenes, pimarane, phyllocladane, indicating that OM was mainly derived from phytoplankton, filamentous green alga Cladophora vagabunda, Cyanobacteria, submerged/floating macrophytes, terrestrial and emergent plants. The terrestrial origin of organic matter is probably related to a significant input by wind or rivers. Typical oil distributions of terpanes and steranes biomarkers clearly indicate that the muds of Techirghiol Lake, in addition to native organic matter, contain a relatively low contribution of petroleum type pollutants, as well as PAH compounds of pyrogenic origin. 
The relatively high abundance of 1-chloroalkenes, which in some samples represent the most abundant compounds in the total distribution of hydrocarbons, together with isoprenoid thiophenes indicate the local presence of significant amounts of chloride and sulphur species in the water column or surface sediment.
PB  - Parlar Scientific Publications
T2  - Fresenius Environmental Bulletin
T1  - Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4898
ER  - 
@article{
author = "Stojadinović, Sanja and Jovančićević, Branimir and Šajnović, Aleksandra and Golumbenau, Mariana and Almasan, Roxana and Jovanović, Đorđe and Brceski, Ilija",
year = "2021",
abstract = "The Techirghiol Lake, located on the Romanian coast of the Black Sea, is a hypersaline lake. In this environment, a unique ecosystem in Europe has developed with the specific capacity of producing mud by the decomposition of flora and fauna under the microbial activity (saprogenic sludge), which is used for therapeutic purposes.
In this study, hydrocarbon compositions of the Techirghiol Lake mud are investigated in order to determine the origin and type of organic matter (OM). All samples are characterized by a high abundance of n-alkanes, short and high chain alkenes, pimarane, phyllocladane, indicating that OM was mainly derived from phytoplankton, filamentous green alga Cladophora vagabunda, Cyanobacteria, submerged/floating macrophytes, terrestrial and emergent plants. The terrestrial origin of organic matter is probably related to a significant input by wind or rivers. Typical oil distributions of terpanes and steranes biomarkers clearly indicate that the muds of Techirghiol Lake, in addition to native organic matter, contain a relatively low contribution of petroleum type pollutants, as well as PAH compounds of pyrogenic origin. 
The relatively high abundance of 1-chloroalkenes, which in some samples represent the most abundant compounds in the total distribution of hydrocarbons, together with isoprenoid thiophenes indicate the local presence of significant amounts of chloride and sulphur species in the water column or surface sediment.",
publisher = "Parlar Scientific Publications",
journal = "Fresenius Environmental Bulletin",
title = "Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4898"
}
Stojadinović, S., Jovančićević, B., Šajnović, A., Golumbenau, M., Almasan, R., Jovanović, Đ.,& Brceski, I.. (2021). Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania. in Fresenius Environmental Bulletin
Parlar Scientific Publications..
https://hdl.handle.net/21.15107/rcub_cherry_4898
Stojadinović S, Jovančićević B, Šajnović A, Golumbenau M, Almasan R, Jovanović Đ, Brceski I. Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania. in Fresenius Environmental Bulletin. 2021;.
https://hdl.handle.net/21.15107/rcub_cherry_4898 .
Stojadinović, Sanja, Jovančićević, Branimir, Šajnović, Aleksandra, Golumbenau, Mariana, Almasan, Roxana, Jovanović, Đorđe, Brceski, Ilija, "Organic-geochemical characteristics of the mud from the Techirghiol Lake, Romania" in Fresenius Environmental Bulletin (2021),
https://hdl.handle.net/21.15107/rcub_cherry_4898 .

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