Assessment of the snow cover pollution load in Ulan-Ude in 2022

Abstract

The results of the study of the chemical composition of the snow cover in Ulan-Ude and the background area of the Republic of Buryatia in 2022 are presented. It was established that the snow melt waters in Ulan-Ude belonged to the sulfate class, calcium group. The maximum concentrations of major ions and compounds of nitrogen and phosphorus were determined near thermal power facilities. The relative content of the suspended form of total phosphorus in snow melt water was significantly higher than the content of its dissolved form. Nitrate nitrogen was the predominant form of mineral nitrogen. The accumulation of most pollutants in the snow cover in Ulan-Ude was significantly higher than in the background area.