ESTIMATION OF ENVIRONMENTAL STATE OF SURFACE WATERS OF URBANIZED TERRITORIES IN THE MOSCOW REGION BY THEIR MACROCOMPONENT COMPOSITION

Abstract

We report the results of the study of the macrocomponent composition of 57 samples of natural waters from ten rivers, three ponds and three lakes of urbanized territories of the Moscow region. Using the titrimetric, spectrophotometric, conductometric and potentiometric methods of analysis, the total mineralization, total alkalinity, total hardness, chromaticity, content of nitrate, chloride and phosphate anions and content of the ammonium cation are determined. It is found that the roadside surface waters of the Moscow region do not accumulate nitrate, phosphate and chloride ions and ammonium ions in concentrations exceeding the sanitary-hygienic standards. The ubiquitous excess of chromaticity of the water samples studied is revealed, which is due to the accumulation of organic compounds washed out from soils and bottom sediments.