ECOLOGICAL MONITORING OF WATER BODIES IN THE NORTH OF THE GYDA PENINSULA UNDER CONDITIONS OF INTENSIVE DEVELOPMENT

The article presents the results of water bodies monitoring in the north-east of the Gyda Peninsula in 2018-2020 for such sources of pollution of natural waters as heavy metals, cations and anions of various salts and residues of petroleum products. It also presents the calculations of maximum permissible concentrations (MPC) in relation to regional, commercial fishing, and household standards, as well as the results of calculating the Specific Combinatorial Index of Water Pollution (SCIWP). Conclusions are made about the quality of surface waters in the studied areas.