Dynamics of the elemental composition of the snow cover in the north-eastern zone of influence of Tomsk-Seversk industrial agglomeration
A.V. Talovskaya, E.A. Filimonenko, E.G. Yazikov
National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, 634050, Russia
Keywords: dust aerosol, snow, solid residue of snow, Tomsk-Seversk agglomeration, heavy metals, rare, rare earth and radioactive elements
Abstract
The paper presents the results of analysis of data on dust aerosol inflow with a complex of heavy metals, rare, rare-earth, and radioactive elements on the snow cover in the north-eastern zone of influence of Tomsk-Seversk industrial agglomeration from 1990s to 2006-2013. The positive dynamics of reducing the daily average inflow of most chemical elements considered in the composition of dust aerosol from the atmosphere during the observation period was marked. This may indicate a reduction of anthropogenic load from local sources in the settlements and industrial facilities of Tomsk and Seversk. Also, the paper presents the results of synchronous research of the content of chemical elements in the melted snow water and solid residue snow. Most elements concentrate in the solid residue of snow and, probably, it is related to the processes of sorption of elements on solid aerosol particles.
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