Vol. 34, issue 06, article # 2

Abstract:

The seasonal changes in the surface aerosol elemental composition in Moscow are considered in four data series: for summer and autumn 2019 and winter and spring 2020. The surface aerosol in megalopolis is significantly enriched with sulfur, heavy metals, and metalloids (Cu, Zn, Cd, Sb, Pb, Bi, etc.). We compare the mass concentrations, mass percentages, and enrichment factors for different elements in aerosol particles. The spatial distributions of elements in the surface aerosol is not uniform through the city, which may be associated with the specificity of local sources, underlying surface, and wind regime in different regions of Moscow. The concentrations of a number of terrigenous and anthropogenic elements are the highest in the central Moscow. The reasons for seasonal variability of surface aerosol elemental composition are discussed. Identification of the main sources of different elements is the task of the next investigation.

Keywords:

atmosphere, aerosol, elemental composition, seasonal variability, mass concentration, percentage, enrichment factor, Moscow

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