Optika Atmosfery i Okeana Journal

Vol. 24, issue 06, article # 2

Gorchakov G. I., Semutnikova E. G., Isakov A. A., Kopeikin V. M., Karpov A. V., Kurbatov G. A., Lesina E. A., Ponomareva T. Ta., Sokolov A. V. Moscow smoky haze of 2010. Extreme aerosol and gaseous air pollution in Moscow region. // Optika Atmosfery i Okeana. 2011. V. 24. No. 06. P. 452-458 [in Russian].
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Abstract:

Aerosol mass concentration (PM₁₀) and carbon monoxide concentration variations for the dense smoke time in Moscow region during the large-scale peat-forest fires have been analyzed. Statistical characteristics of the concentration variations and exceeding probabilities for single maximal permissible concentration (SMPC) and multiple to SMPC values for aerosol mass concentration with aerodynamic diameters smaller 10 mcm (PM₁₀) and for carbon monoxide concentration were calculated. The exceeding of 5 SMPC for PM₁₀ and 6 SMPC for carbon monoxide were found. It is shown that main statistical characteristics (averages, standard deviations, asymmetry and excess parameters) of PM₁₀ and carbon monoxide concentration variations in the smoky atmosphere differ essentially from corresponding statistical characteristics for non-smoky atmosphere. Meteorology at a period of the smoke screening in August 2010 were outlined. Smoke screening sources of the Moscow region were determined by means of the inverse trajectories analysis.

Keywords:

smoky haze, smoke aerosol, aerosol mass concentration, scattering coefficient, single maximal permissible concentration, exceeding problilities, carbon monoxide, extremal air pollution