Source identification of individual PM2.5 particles in Shanghai air in the winter of 2007 with synchrotron X-ray fluorescence microprobe

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LI Xiao-Lin, LIU Jiang-Feng, BAO Liang-Man, LI Yan and ZHANG Gui-Lin. Source identification of individual PM2.5 particles in Shanghai air in the winter of 2007 with synchrotron X-ray fluorescence microprobe[J]. Chinese Physics C, 2009, 33(11): 960-964. doi: 10.1088/1674-1137/33/11/006
LI Xiao-Lin, LIU Jiang-Feng, BAO Liang-Man, LI Yan and ZHANG Gui-Lin. Source identification of individual PM2.5 particles in Shanghai air in the winter of 2007 with synchrotron X-ray fluorescence microprobe[J]. Chinese Physics C, 2009, 33(11): 960-964.  doi: 10.1088/1674-1137/33/11/006 shu
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Received: 2008-12-17
Revised: 2009-04-01
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Source identification of individual PM2.5 particles in Shanghai air in the winter of 2007 with synchrotron X-ray fluorescence microprobe

    Corresponding author: LI Xiao-Lin,

Abstract: In order to further understand the sources of PM2.5 in Shanghai air, the synchrotron X-ray fluorescence microprobe at the BL-4A Beamline of Photon Factory of High Energy Accelerator Research Organization, Japan, was applied to analyze the individual PM2.5 particles collected from Shanghai air in the winter of 2007. Eight categories of emission sources were recognized in these individual particles. The source identification shows that most of the analyzed PM2.5 particles are derived from vehicle exhaust and metallurgical emissions. This suggests that the important emission sources of PM2.5 in Shanghai air would be vehicle exhaust and metallurgical activities.

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