Assessment of snow cover pollution by heavy metals as one of the methods of atmospheric air monitoring on the example of settlements in the Far East

The relevance of the work is due to the study of technogenic load by studying snow cover in small settlements of the Far East. The possibility of including this method in the monitoring system of small cities of the Far East as an additional means of assessing atmospheric air pollution is being considered. The article presents an analysis of the content of heavy metals in the melt of snow collected in the port of Vanino in the Khabarovsk Territory. The concentration of heavy metals in meltwater obtained after melting snow samples was compared with MPCd-c of chemicals in the water of water bodies of economic, drinking and cultural water use and MPCf-s of chemicals in water of fishery significance. The results obtained indicate an excess of MPCf-s for some heavy metals. These studies correlate with previous surveys (modeling, calculation of dust load) and allow us to assert that the analysis of snow cover can be successfully used in monitoring atmospheric air for various purposes.