Vol. 16, issue 05-06, article # 17
pdf Molozhnikova E. V., Kuchmenko E. V., Netsvetaeva O. G., Kobeleva N. A. Analysis of mechanism of formation of ion composition of atmospheric precipitation in the south of Eastern Siberia . // Atmospheric and oceanic optics. 2003. V. 16. No. 05-06. P. 460-463.Copy the reference to clipboard
Abstract:
The aim of this paper is to specify the mechanisms of anthropogenic impact on the composition of atmospheric aerosols and precipitation. In this study we made use of data obtained by snow sampling during 5 years in Irkutsk and in 2002 in Slyudyanka settlement. Attention was primarily paid to revealing the relationship between the ion composition of atmospheric precipitation and the operating characteristics of industrial emission sources. An attempt was made to balance sulfur-containing compounds in the atmosphere of various populated settlements (by using local and regional transport models). Estimation of the anthropogenic impact on the precipitation composition in the regions calls for the knowledge of natural mechanisms that form the background characteristics. If there is no anthropogenic impact, the composition of precipitation is determined, first of all, by the source and region of the condensation nuclei formation as well as by the atmospheric pollution on the way of air mass that carries precipitation. The trajectories of air masses, characterized by most mineralized atmospheric precipitation, were determined for the background and industrial areas in the near-Baikal region.