RESEARCH OF THE WATER QUALITY OF SURFACE WATER BODIES USING THE POLLUTION INDEX AND THE WATER QUALITY INDEX (ON THE EXAMPLE OF THE DESNA, VORSKLA, PSEL, SULA AND SAMARA RIVERS)

Abstract

Water quality indices (WQI) and water pollution index (Iз) for surface water bodies that are part of the Desna sub-basin, the Middle and Lower Dnipro sub-basins, namely the rivers Desna, Psel, Vorskla, Samara, Sula are given in the work. Using the hydrochemical index, it is determined to which quality class the water belongs. Using the water quality index, the water quality of surface water bodies and whether it is usable is determined.