[Hygienic regulation of neonicotinoids derivative in the soil]

For the assurance of the safe regulations for the use in agriculture persistent in soil insecticide neonicotinoids derivative, studies have been executed to investigate its impact on the soil microbiocenosis and migration to the neighboring environment of the active ingredient of this pesticide and the preparation based on it. On the ground of obtained experimental data there were determined threshold doses for the following indices of the harmfulness: migration-water, translocation (transmission into plants) and general sanitary indices. There were established limiting indices of the harmfulness: translocation and migration-water indices. The maximum permissible concentration (MPC) of neonicotinoids derivative in the soil accounted for 0.5 mg/kg of the soil. This content of the pesticide in the soil prevents its accumulation in plants in concentrations exceeding the maximum permissible levels (MPLs), in food products, it fails both to give rise in its transition in groundwater above the MPL for water reservoirs and influence on the soil microbiocenosis and self-purification processes.