Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment
Abstract
Chlorine dioxide has been reported as very
efficiently removing pesticides and other organic compounds
from water matrixes. Due to pesticide toxicity
and potential toxicity of their degradation products, it is
important to monitor these compounds as environmental
pollutants in ground and surface waters. Evaluating
the effects of chlorine dioxide treatment is necessary,
and toxicity studies are used to ascertain the severity of
effects of intermediates due to incomplete degradation
of the parent compounds. In this paper, for the first time,
chlorine dioxide is applied and evaluated for the removal
of chloroacetamide herbicides (pethoxamid and
metazachlor) from waters (deionized water and Sava
River water). The degradation degree of herbicides
was measured by high-performance liquid chromatography,
the main degradation products were identified
using gas chromatography with a triple quadrupole mass
detector, and the degree of mineralization was
monitored by total organic... carbon analysis. Four and
two degradation products were identified after
pethoxamid and metazachlor degradation, respectively.
Total organic carbon analysis showed mineralization
occurred, but it was incomplete. The mineralization
and the characteristics of the degradation products obtained
were tested using Daphnia magna and showed
lower toxicity than the parent herbicides. The advantage
of the applied treatment was a very high degradation
percentage for pethoxamid removal from deionized water
and Sava River water (100% and 97%, respectively),
with higher mineralization efficiency (65%) than
metazachlor. Slightly lower degradation efficiency in
the Sava River water was due to chlorine dioxide oxidizing
the herbicides and dissolved organic matter
simultaneously
Keywords:
Chlorine dioxide / Chloroacetamide herbicides / Surfacewater / Ecotoxicity / Gas chromatography with triple quad mass detectorSource:
Environmental Monitoring and Assessment, 2020, 192, 7, 422-Publisher:
- Springer Nature Switzerland AG 2020
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200168 (University of Belgrade, Faculty of Chemistry) (RS-MESTD-inst-2020-200168)
DOI: 10.1007/s10661-020-08392-1
ISSN: 1573-2959; 0167-6369
PubMed: 32519186
WoS: 000539229400001
Scopus: 2-s2.0-85086182626
Collections
Institution/Community
IHTMTY - JOUR AU - Kodranov, Igor AU - Pergal, Marija AU - Avdin, Viacheslav V. AU - Manojlović, Dragan PY - 2020 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3602 AB - Chlorine dioxide has been reported as very efficiently removing pesticides and other organic compounds from water matrixes. Due to pesticide toxicity and potential toxicity of their degradation products, it is important to monitor these compounds as environmental pollutants in ground and surface waters. Evaluating the effects of chlorine dioxide treatment is necessary, and toxicity studies are used to ascertain the severity of effects of intermediates due to incomplete degradation of the parent compounds. In this paper, for the first time, chlorine dioxide is applied and evaluated for the removal of chloroacetamide herbicides (pethoxamid and metazachlor) from waters (deionized water and Sava River water). The degradation degree of herbicides was measured by high-performance liquid chromatography, the main degradation products were identified using gas chromatography with a triple quadrupole mass detector, and the degree of mineralization was monitored by total organic carbon analysis. Four and two degradation products were identified after pethoxamid and metazachlor degradation, respectively. Total organic carbon analysis showed mineralization occurred, but it was incomplete. The mineralization and the characteristics of the degradation products obtained were tested using Daphnia magna and showed lower toxicity than the parent herbicides. The advantage of the applied treatment was a very high degradation percentage for pethoxamid removal from deionized water and Sava River water (100% and 97%, respectively), with higher mineralization efficiency (65%) than metazachlor. Slightly lower degradation efficiency in the Sava River water was due to chlorine dioxide oxidizing the herbicides and dissolved organic matter simultaneously PB - Springer Nature Switzerland AG 2020 T2 - Environmental Monitoring and Assessment T1 - Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment VL - 192 IS - 7 SP - 422 DO - 10.1007/s10661-020-08392-1 ER -
@article{ author = "Kodranov, Igor and Pergal, Marija and Avdin, Viacheslav V. and Manojlović, Dragan", year = "2020", abstract = "Chlorine dioxide has been reported as very efficiently removing pesticides and other organic compounds from water matrixes. Due to pesticide toxicity and potential toxicity of their degradation products, it is important to monitor these compounds as environmental pollutants in ground and surface waters. Evaluating the effects of chlorine dioxide treatment is necessary, and toxicity studies are used to ascertain the severity of effects of intermediates due to incomplete degradation of the parent compounds. In this paper, for the first time, chlorine dioxide is applied and evaluated for the removal of chloroacetamide herbicides (pethoxamid and metazachlor) from waters (deionized water and Sava River water). The degradation degree of herbicides was measured by high-performance liquid chromatography, the main degradation products were identified using gas chromatography with a triple quadrupole mass detector, and the degree of mineralization was monitored by total organic carbon analysis. Four and two degradation products were identified after pethoxamid and metazachlor degradation, respectively. Total organic carbon analysis showed mineralization occurred, but it was incomplete. The mineralization and the characteristics of the degradation products obtained were tested using Daphnia magna and showed lower toxicity than the parent herbicides. The advantage of the applied treatment was a very high degradation percentage for pethoxamid removal from deionized water and Sava River water (100% and 97%, respectively), with higher mineralization efficiency (65%) than metazachlor. Slightly lower degradation efficiency in the Sava River water was due to chlorine dioxide oxidizing the herbicides and dissolved organic matter simultaneously", publisher = "Springer Nature Switzerland AG 2020", journal = "Environmental Monitoring and Assessment", title = "Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment", volume = "192", number = "7", pages = "422", doi = "10.1007/s10661-020-08392-1" }
Kodranov, I., Pergal, M., Avdin, V. V.,& Manojlović, D.. (2020). Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment. in Environmental Monitoring and Assessment Springer Nature Switzerland AG 2020., 192(7), 422. https://doi.org/10.1007/s10661-020-08392-1
Kodranov I, Pergal M, Avdin VV, Manojlović D. Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment. in Environmental Monitoring and Assessment. 2020;192(7):422. doi:10.1007/s10661-020-08392-1 .
Kodranov, Igor, Pergal, Marija, Avdin, Viacheslav V., Manojlović, Dragan, "Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment" in Environmental Monitoring and Assessment, 192, no. 7 (2020):422, https://doi.org/10.1007/s10661-020-08392-1 . .