Vol. 9, issue 06, article # 1

Abstract:

Results of systematic research into atmospheric aerosols in Siberia are presented. The aerosol size spectrum in Siberia is now known to have a typical three-modal structure adequately described by a model of the continental aerosol of rural territories. The submicron aerosol fraction has well pronounced diurnal and seasonal cycles. A semiempirical model has been developed that adequately describes the experimental data behavior. The data on the ion composition of aerosols and precipitation in their seasonal dynamics have been obtained. Using the roentgenofluorescence method, the data on the multielemental composition of atmospheric aerosols have been obtained. Main components of the coarse fraction that are produced due to soil erosion have been identified. Using the automated electron probe X-ray microanalysis (EPXMA) for individual aerosol particles, nine types of aerosol sources have been identified in the Siberian region. It has been shown that this technique is capable of separating the contribution from an anthropogenic load already in its early stage.