Abstract
An assessment of the circulation of pesticides in the Saratov region was carried out. A list of pesticides that pose a potential hazard to public health as a result of chemical pollution of water bodies and aquatic organisms consumed by humans has been determined. It is proposed to use satellite images of the terrain located in the drainage basin area in order to justify the sampling points from surface water household supplies potentially contaminated with pesticides. The methodological aspects of the use of a multicomponent biotest system in establishing the toxicity of pesticides are considered. It is concluded that when arranging the biotesting to assess the toxicity of water and sediment samples containing pesticides in concentrations up to 10 MAC, it is recommended to use aquatic organisms with a minimally developed detoxification system.
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