Pesticides of modern classes in water and bottom sediments of Veselovsky, Proletarsky and Krasnodar Reservoirs
Veselovsky, Proletarsky and Krasnodar Reservoirs are located in the area, extensively used for various agricultural purposes. This industry requires the use of means to protect cultivated plants from pests. When land is treated with pesticides, these substances can enter water bodies of fisheries importance through the air and soil, accumulate in bottom sediments and have a negative impact on the vital functions of hydrobionts. Using the method of high-performance liquid chromatography (HPLC), 20 active ingredients (AI) of pesticides of modern classes that are used in agriculture of the region and the half-life of which can exceed six months have been investigated. In preparation for chromatography, pesticides were extracted from the samples of water and bottom sediments with dichloromethane, followed by drying and purification of the extracts. It has been established that the concentrations of pesticide AIs in the aquatic living environment of the investigated reservoirs are more than an order of magnitude lower than the established maximum permissible concentrations (MPCs).
| Main Authors: | , , |
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| Format: | Journal Contribution biblioteca |
| Language: | Russian |
| Published: |
2023
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| Subjects: | Active ingredients, HPLC, Пестицидное загрязнение, ПДК, ВЭЖХ, Действующие вещества, Метод высокоэффективной жидкостной хроматографии, Bottom sediments, Maximum permissible concentration, ASFA_2015::P::Pesticides, ASFA_2015::P::Pollution, ASFA_2015::H::HPLC, |
| Online Access: | http://hdl.handle.net/1834/42941 |
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| Summary: | Veselovsky, Proletarsky and Krasnodar Reservoirs are located in the area, extensively used for various agricultural purposes. This industry requires the use of means to protect cultivated plants from pests. When land is treated with pesticides, these substances can enter water bodies of fisheries importance through the air and soil, accumulate in bottom sediments and have a negative impact on the vital functions of hydrobionts. Using the method of high-performance liquid chromatography (HPLC), 20 active ingredients (AI) of pesticides of modern classes that are used in agriculture of the region and the half-life of which can exceed six months have been investigated. In preparation for chromatography, pesticides were extracted from the samples of water and bottom sediments with dichloromethane, followed by drying and purification of the extracts. It has been established that the concentrations of pesticide AIs in the aquatic living environment of the investigated reservoirs are more than an order of magnitude lower than the established maximum permissible concentrations (MPCs). |
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