Chemical Composition of Aerosols Collected in Datong and Taiyuan, Shanxi Province, China from 2002 to 2004

摘要

In order to clarify circumstances of air pollution and Kosa, aerosol was collected using high volume air sampler in Datong and Taiyuan, Shanxi Province, China, from 2002 to 2004. (1) Taiyuan : The sulfur isotope ratios of sulfate ranged from 0 to +10 per thousand and showed seasonal variation, with an increase in Kosa period. This seasonal variation suggests that sulfate in aerosol is derived from a source, having a higher sulfur isotope ratio, such as the Gobi Desert. (2) Datong : Relation between concentration of F~- and SO_4~(2-) is good in all seasons. This suggested that F~- and SO_4~(2-) caused by combustion of coal. Good relationships occur between NH_4~+ and SO_4~(2-) suggested that the main soluble minerals are (NH_4)_2SO_4 of anthropogenic origin.