THE EFFECT OF DIMETHYL DISULFIDE ON BIOLOGICAL INDICATORS OF TEST-ORGANISMS OF DIFFERENT SYSTEMATIC GROUPS

New data on the effect of dimethyl disulfide on hydrobionts of different systematic groups were obtained. The threshold concentrations of DMDS, established with the chronic effect of DMDS on the growth of cells of the algae Chlorella vulgaris — 0.05 mg/L, on the reproductive parameters of Ceriodaphnia affinis — 5.0 mg/L, the occurrence of pathomorphological and pathoanatomic changes in adult fish Danio rerio — 5.0 mg/L. The change in the number of cells of the green algae Chlorella vulgaris is the most sensitive test function. The established toxicological parameters can be used to determine the hazard class and adjust the standards for the content of DMDS in water.