Pyrethroid and organophosphate insecticides are globally recognized as the most extensively used insecticides. Their potential to accumulate in groundwater raises significant concerns due to the severe threats they pose to both human health and the environment. This study examined the presence of organophosphorus and pyrethroid pesticides in rivers in the middle of the Mono river basin and their ecotoxicological risk. To reach these aims, seven organophosphorus pesticides and three pyrethroids were investigated in thirteen water samples by liquid-liquid extraction and GC-MS/MS analysis. The ecotoxicological risk was assessed for fish and crustaceans using the risk quotient method, which is the ratio between the measured environmental concentration and the toxic reference value. The results show that all the targeted pesticides were found, with maximum concentrations of 0.9647; 0.8947; 0.0978; 0.0908; 0.0602; 0.0578; 0.0483; 0.0468; 0. 0245 and 0.0152 μg.L-1 respectively for Lambda-cyhalothrin; Chlorpyriphos; Deltamethrin; Fenchlorphos; Cypermethrin; Prothiofos; Dichlorvos; Ethoprophos; Disulfoton and Parathion-Methyl. The detection rate for the first two pesticides was 100%, and 61.54% of water samples had concentrations above 0.5 μg.L-1, which is the threshold limit for pesticides in drinking water. At the sampling points, the concentration increases with the distance travelled by the rivers. Risk assessment for aquatic species shows negligible risk for fish in most rivers analysed. For crustaceans, the risk quotient reveals a moderate and low risk for 46.16% and 53.84% of the rivers analysed respectively.
| Published in | International Journal of Environmental Monitoring and Analysis (Volume 12, Issue 1) |
| DOI | 10.11648/ijema.20241201.12 |
| Page(s) | 14-20 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Pesticides, Mono River Basin, Ecotoxicological Risk, Water Pollution
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APA Style
Komlan, K. J., Kodom, T., Dougna, A. A., Eloh, K., Sodomon, A. K., et al. (2024). Occurrence and Risk Assessment of Pyrethroids and Organophosphorus Pesticides in the Middle Part of Mono River Basin. International Journal of Environmental Monitoring and Analysis, 12(1), 14-20. https://doi.org/10.11648/ijema.20241201.12
ACS Style
Komlan, K. J.; Kodom, T.; Dougna, A. A.; Eloh, K.; Sodomon, A. K., et al. Occurrence and Risk Assessment of Pyrethroids and Organophosphorus Pesticides in the Middle Part of Mono River Basin. Int. J. Environ. Monit. Anal. 2024, 12(1), 14-20. doi: 10.11648/ijema.20241201.12
AMA Style
Komlan KJ, Kodom T, Dougna AA, Eloh K, Sodomon AK, et al. Occurrence and Risk Assessment of Pyrethroids and Organophosphorus Pesticides in the Middle Part of Mono River Basin. Int J Environ Monit Anal. 2024;12(1):14-20. doi: 10.11648/ijema.20241201.12
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Download@article{10.11648/ijema.20241201.12,
author = {Kossi Jorge Komlan and Tomkouani Kodom and Akpénè Amenuvevega Dougna and Kodjo Eloh and Agbessi Koffi Sodomon and Sopheak Net and Moctar Limam Bawa},
title = {Occurrence and Risk Assessment of Pyrethroids and Organophosphorus Pesticides in the Middle Part of Mono River Basin},
journal = {International Journal of Environmental Monitoring and Analysis},
volume = {12},
number = {1},
pages = {14-20},
doi = {10.11648/ijema.20241201.12},
url = {https://doi.org/10.11648/ijema.20241201.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.ijema.20241201.12},
abstract = {Pyrethroid and organophosphate insecticides are globally recognized as the most extensively used insecticides. Their potential to accumulate in groundwater raises significant concerns due to the severe threats they pose to both human health and the environment. This study examined the presence of organophosphorus and pyrethroid pesticides in rivers in the middle of the Mono river basin and their ecotoxicological risk. To reach these aims, seven organophosphorus pesticides and three pyrethroids were investigated in thirteen water samples by liquid-liquid extraction and GC-MS/MS analysis. The ecotoxicological risk was assessed for fish and crustaceans using the risk quotient method, which is the ratio between the measured environmental concentration and the toxic reference value. The results show that all the targeted pesticides were found, with maximum concentrations of 0.9647; 0.8947; 0.0978; 0.0908; 0.0602; 0.0578; 0.0483; 0.0468; 0. 0245 and 0.0152 μg.L-1 respectively for Lambda-cyhalothrin; Chlorpyriphos; Deltamethrin; Fenchlorphos; Cypermethrin; Prothiofos; Dichlorvos; Ethoprophos; Disulfoton and Parathion-Methyl. The detection rate for the first two pesticides was 100%, and 61.54% of water samples had concentrations above 0.5 μg.L-1, which is the threshold limit for pesticides in drinking water. At the sampling points, the concentration increases with the distance travelled by the rivers. Risk assessment for aquatic species shows negligible risk for fish in most rivers analysed. For crustaceans, the risk quotient reveals a moderate and low risk for 46.16% and 53.84% of the rivers analysed respectively.
},
year = {2024}
}
TY - JOUR T1 - Occurrence and Risk Assessment of Pyrethroids and Organophosphorus Pesticides in the Middle Part of Mono River Basin AU - Kossi Jorge Komlan AU - Tomkouani Kodom AU - Akpénè Amenuvevega Dougna AU - Kodjo Eloh AU - Agbessi Koffi Sodomon AU - Sopheak Net AU - Moctar Limam Bawa Y1 - 2024/02/05 PY - 2024 N1 - https://doi.org/10.11648/ijema.20241201.12 DO - 10.11648/ijema.20241201.12 T2 - International Journal of Environmental Monitoring and Analysis JF - International Journal of Environmental Monitoring and Analysis JO - International Journal of Environmental Monitoring and Analysis SP - 14 EP - 20 PB - Science Publishing Group SN - 2328-7667 UR - https://doi.org/10.11648/ijema.20241201.12 AB - Pyrethroid and organophosphate insecticides are globally recognized as the most extensively used insecticides. Their potential to accumulate in groundwater raises significant concerns due to the severe threats they pose to both human health and the environment. This study examined the presence of organophosphorus and pyrethroid pesticides in rivers in the middle of the Mono river basin and their ecotoxicological risk. To reach these aims, seven organophosphorus pesticides and three pyrethroids were investigated in thirteen water samples by liquid-liquid extraction and GC-MS/MS analysis. The ecotoxicological risk was assessed for fish and crustaceans using the risk quotient method, which is the ratio between the measured environmental concentration and the toxic reference value. The results show that all the targeted pesticides were found, with maximum concentrations of 0.9647; 0.8947; 0.0978; 0.0908; 0.0602; 0.0578; 0.0483; 0.0468; 0. 0245 and 0.0152 μg.L-1 respectively for Lambda-cyhalothrin; Chlorpyriphos; Deltamethrin; Fenchlorphos; Cypermethrin; Prothiofos; Dichlorvos; Ethoprophos; Disulfoton and Parathion-Methyl. The detection rate for the first two pesticides was 100%, and 61.54% of water samples had concentrations above 0.5 μg.L-1, which is the threshold limit for pesticides in drinking water. At the sampling points, the concentration increases with the distance travelled by the rivers. Risk assessment for aquatic species shows negligible risk for fish in most rivers analysed. For crustaceans, the risk quotient reveals a moderate and low risk for 46.16% and 53.84% of the rivers analysed respectively. VL - 12 IS - 1 ER -
Laboratory of Organic Chemistry and Environmental Science, Faculty of Science and Technology, University of Kara, Kara, Togo; Laboratory of Applied Hydrology and the Environment, Faculty of Science, University of Lomé, Lomé, Togo
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