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 / Surface water / Ecotoxicity / Gas chromatography with triple quad mass detectorSource:
Environmental Monitoring and Assessment, 2020, 192, 7, 422-Publisher:
- Springer
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)
Note:
- Supplementary material: http://cherry.chem.bg.ac.rs/handle/123456789/4008
DOI: 10.1007/s10661-020-08392-1
ISSN: 0167-6369
WoS: 000539229400001
Scopus: 2-s2.0-85086182626
Collections
Institution/Community
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Kodranov, Igor D. AU - Pergal, Marija V. AU - Avdin, Viacheslav V. AU - Manojlović, Dragan D. PY - 2020 UR - https://cherry.chem.bg.ac.rs/handle/123456789/4007 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 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 D. and Pergal, Marija V. and Avdin, Viacheslav V. and Manojlović, Dragan D.", 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", 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. D., Pergal, M. V., Avdin, V. V.,& Manojlović, D. D.. (2020). Examination of degradation and ecotoxicology of pethoxamid and metazachlor after chlorine dioxide treatment. in Environmental Monitoring and Assessment Springer., 192(7), 422. https://doi.org/10.1007/s10661-020-08392-1
Kodranov ID, Pergal MV, Avdin VV, Manojlović DD. 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 D., Pergal, Marija V., Avdin, Viacheslav V., Manojlović, Dragan D., "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 . .