Optika Atmosfery i Okeana Journal

Vol. 24, issue 03, article # 11

Golobokova L. P., Filippova U. G., Marinaite I. I., Belozerova O. Yu., Gorshkov A. G., Obolkin V. A., Potemkin V. L., Khodzher T. V. Chemical composition of atmospheric aerosol above the Lake Baikal area. // Optika Atmosfery i Okeana. 2011. V. 24. No. 03. P. 236-241 [in Russian].
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Abstract:

Complex chemical analysis of aerosol admixtures in the near water air layer over the Lake Baikal was conducted for summer periods 2005-2008 years. The largest amount of pollution components in aerosols was observed in the atmosphere of South Baikal, particularly, nearby the Baikalsk Paper Factory (4.6 g/m³). For the first time the chemical composition of different size fractions of aerosols was analyzed over all three lake basins. Most part of chemical admixtures is presented in submicron fraction of aerosols with a size of 0.69mm, this fraction contains up to 60% of soluble components and up to 35% of PAH. In the coarse fraction of aerosols, higher concentrations of ions and PAH exist in size ranges 1.3-2.1 and 4.2-10 mm. The composition of n-alkans was studied, it is mainly presented by homologous series from n-С₁₃ to n-С₃₃. The quality of chemical composition of solid particles depends on the particles' shape: in spherical particles the carbon is major component, rough particles mostly are presented by alumo-silicates, alkali-earth, and metal oxides.

Keywords:

n-alkans, ions, polyaromatic hydrocarbons, particle size, Baikal