Source identification of single Lead-containing particles in the ambient air of Shanghai city in winter 2004

doi:10.7523/j.issn.2095-6134.2007.5.022

›› 2007, Vol. 24 ›› Issue (5): 688-691.DOI: 10.7523/j.issn.2095-6134.2007.5.022

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Source identification of single Lead-containing particles in the ambient air of Shanghai city in winter 2004

LI Xiao-Lin, BAO Liang-Man, LIU Jiang-Feng, YUE Wei-Sheng, LI Yan, CHANG Gui-Lin

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800

Received:1900-01-01 Revised:1900-01-01 Online:2007-09-15

Abstract

Abstract: Single aerosol particles in Shanghai air in winter 2004 were analyzed by proton microprobe. The micro-PIXE coupled with a pattern recognition technique was applied to identify the sources of single lead-containing particles. Seven source types were identified. They were automobile exhaust, metallurgical industry, coal combustion, soil dust, diesel exhaust, motorcycle exhaust and cement dust. The lead pollution in Shanghai air was derived mainly from the metallurgical industry and coal combustion after phasing out leaded gasoline in 1997.

Key words: aerosol, PM10, lead, proton microprobe, pattern recognition.

CLC Number:

X131.1

LI Xiao-Lin, BAO Liang-Man, LIU Jiang-Feng, YUE Wei-Sheng, LI Yan, CHANG Gui-Lin. Source identification of single Lead-containing particles in the ambient air of Shanghai city in winter 2004[J]. , 2007, 24(5): 688-691.

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Source identification of single Lead-containing particles in the ambient air of Shanghai city in winter 2004

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