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

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• 作者：Lu Senlin ; Shao Longyi ; Wu Minghong ; Jiao Zheng and Chen Xiaohui
• 关键词：Beijing PM10 ; Chemical elements ; PIXE (Proton Induced X ; ray Emission analysis) ; Factor analysis
• 刊名：Environmental Monitoring and Assessment
• 出版年：2007
• 出版时间：October, 2007
• 年：2007
• 卷：133
• 期：1-3
• 页码：79-85
• 全文大小：154 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  Ecology
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-2959

文摘

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.