Status of air pollution in Beijing

查看全文 作　　者：Ma [1]ciguang;[1]Y.Iida;[1]S.Daishima;[1]K.Furuya;[1]T.Kikuchi;[1]H.Matsushita;[1]K.Tanabe 机构地区：[1]Research Center for Eco-Environmental Sciences(former Institute of Environmental Chem istry),Academia Sinica,Faculty of Engineering, Seikei University, Tokyo, Japan.,Faculty of Engineering, Seikei University, Tokyo, Japan.,Faculty of Science, University of Tokyo, Tokyo, Japan.,Faculty of Science, University of Tokyo, Tokyo, Japan.,Department of Regional Environmental Health, National Institute of Public Health, Tokyo, Japan.,Department of Regional Environmental Health, National Institute of Public Health, Tokyo, Japan. 出　　处：《Journal of Environmental Sciences》索引1990年第2卷第1期,共13页 摘　　要：A study has been made on elements organic constituents, TSP, SO2,NO2 of atmospheric pollutants in Beijing. 17 elements, and some PAHs, e. g. B(a)P, B(b, j, k)P, and B(g, h, i)P, in airborne particles by X-ray fluorescence spectroscopy and HPLC, GC/MS, have been determined respectively. It has been shown that the elements Pb, Zn, S and Cu were more enriched in fine particles and different valence states of sulfur at various sites. It was found that the concentrations of S6+ and S2-were more than 85% and less than 15% of the total sulfur respectively. Concentrations of major PAHs and sulfur-containing compounds increased in winter and in urban area. High values for Pb and Zn in city, Fe and Mn at industrial area and Cu, Al rural sites were obtained respectively. This implies the functions of different elemental sources of various sites. Thus, elements can be from distingushed anthropogenic and natural sources.The main contribution of SO2 was found of to have same seasonal variation as the anthropogenic 关 键 词：air POLLUTION PARTICLES elements PAHs.