Atmospheric aerosol samples collected in Beijing during 17-21 September 2004 were analyzed using the proton-induced X-ray emissions (PIXE) method,yielding concentrations of 20 elements.Analyzing the aerosol element size-spectrum distribution,enrichment factor (EF) and source over Beijing showed that under strong wind weather conditions,there were double peak distributions in the element size-spectra of Cu,S,K,Mn,As,Br,and Pb:one in fine mode and another in coarse mode.The peak in fine mode resulted from loc...
【英文摘要】
Atmospheric aerosol samples collected in Beijing during 17-21 September 2004 were analyzed using the proton-induced X-ray emissions (PIXE) method,yielding concentrations of 20 elements.Analyzing the aerosol element size-spectrum distribution,enrichment factor (EF) and source over Beijing showed that under strong wind weather conditions,there were double peak distributions in the element size-spectra of Cu,S,K,Mn,As,Br,and Pb:one in fine mode and another in coarse mode.The peak in fine mode resulted from loc...
【基金】
supported by the National Basic Research Program of China (No. 2010CB428503);
Project of the Beijing Municipal Financial Bureau (No. PXM2008_178305_ 06995)
【更新日期】
2011-10-17
【分类号】
P425
【正文快照】
1 IntroductionIn recent years, aerosol studies have become a topic ofconcern among international scientists due to the effect ofaerosol on the environment, climate, and human health(Sokolik and Toon, 1996; Zhang et al., 2003; Huang et al.,2006; Shen et al
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