Chemical Elements and their Source Apportionment of PM10 in Beijing Urban Atmosphere

被引：4
|
作者：
Lu Senlin
Shao Longyi
Wu Minghong
Jiao Zheng
Chen Xiaohui
机构：
[1] Shanghai University,Shanghai Applied Radiation Institute, School of Environmental and Chemical Engineering
[2] China University of Mining and Technology,Department of Earth and Resource
来源：
Environmental Monitoring and Assessment | 2007年 / 133卷
关键词：
Beijing PM; Chemical elements; PIXE (Proton Induced X-ray Emission analysis); Factor analysis;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Monitoring of Beijing PM10 was undertaken, data collected in a period of one year showed seasonal variation of the mass level of Beijing PM10 being highest in winter and spring, lower in summer and lowest in autumn. PIXE was used to investigate the chemical elements in PM10. Results showed the chemical concentration also varied seasonally. Percentage of the masses of the crustal elements such as Al, Si, Mg, K, Ca, Fe, Mn and Ti, reached highest in spring and S, Cl, Pb, As, Cu, Ni and Zn which originated from anthropogenic sources reached highest in winter. The monitoring data showed gradual increase of the abundance of the elements from spring to winter in Beijing air and especially strong correlation of Si, Ca, Al, Fe, Mg and Ti from the factor analysis indicating these elements coming from the earth crust or soil, S, Zn and Pb probably from industrial pollution and Cl and As from combustion.
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页码：79 / 85
页数：6
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