The compositions,sources,and size distribution of the dust storm from China in spring of 2000 and its impact on the global environment

查看全文 作　　者：Guoshun [1]Zhuang;Jinghua [1]Guo;Hui [1]Yuan;Chengyi [1]Zhao

机构地区：[1]Beijing Normal Univ, Ctr Atmospher Environm Study, Beijing 100875, Peoples R China

出　　处：《Chinese Science Bulletin》索引2001年第46卷第11期,共7页

摘　　要：The average mass concentration of the aerosols in Beijing during the dust storm in the spring of 2000 was -6000 μg · m-3, -30 times as high as that in the non-dust storm days. The enrichment factors of the pollution elements As, Sb and Se were higher than those in the non-dust storm days. This indicated that As, Sb and Se resulted from the pollution sources of those areas, through which the dust storm passed during their long-range transport, in addition to the local pollution sources in Beijing. The enrichment factors of the Pb, Zn, Cd and Cu were much less than those in the non-dust storm days, suggesting that the local pollution sources in Beijing area contributed to them mostly. The enrichment factors of elements Al, Fe, Sc, Mn, Na, Ni, Cr, V and Co were close to 1, showing that these elements originated from crust. The concentration of S in the dust storm was -10 μg · m-3,4 times as high as that in non-dust storm. S in the aerosols resulted from the adsorption of gaseous SO2 and the consequent 关键词：DUST STORM AEROSOLS particles POLLUTION SOURCES trans- formation global change.

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The compositions,sources,and size distribution of the dust storm from China in spring of 2000 and its impact on the global environment

参考文献(25)

引证文献(48)

耦合文献(24)

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