The Element Size-Spectrum Distribution of Atmospheric Aerosol in Strong Autumn Winds over Beijing

作     者：ZHANG Ren-Jian 

作者机构：Key Laboratory of Regional Climate-Environment Research for Temperate East Asia Institute of Atmospheric Physics ChineseAcademy of Sciences Beo＇ing 100029 China 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2010年第3卷第1期

页      面：31-35页

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：supported by the National Basic Research Program of China (No. 2010CB428503) Project of the Beijing Municipal Financial Bureau (No. PXM2008_178305_ 06995) 

主　　题：Aerosol chemical composition PIXE factor analysis 

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 *** 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 *** peak in fine mode resulted from local emissions related to human activities,while the peak in coarse mode was caused by long range *** EF values of elements Ni,Cu,Zn,As,Se,Br,and Pb were relatively high,suggesting an evident characteristic polluted by regional *** from factor analysis indicated that soil dust,coal-burning,industry and vehicle emissions contributed considerably to the autumn aerosol pollution in Beijing.