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Title: Source identification of lead pollution in the atmosphere of Shanghai City by analyzing single aerosol particles (SAP)

Abstract

A new method combining the pattern recognition (PR) technique with micro-PIXE spectrum was used for direct assessment of lead pollution in the atmosphere of Shanghai City. Single aerosol particles (SAP) of PM{sub 10} (<10 {micro}m) were analyzed using the nuclear microprobe. Every particle is characterized with its micro-PICE spectrum, which can be considered its fingerprint. The PR technique was applied to trace a lead contaminated aerosol particle back to its source. The discrimination of different pollutant sources was enhanced with investigating the individual aerosol particles. The results showed that the lead contamination from automobile exhaust should not be neglected. The lead concentration with low level was detected in most unleaded gasoline particles; however, the highest lead level of 1,500 ppm was found in one of them. Furthermore, four other main pollutant sources contributing to the lead contamination in the Shanghai atmosphere were clearly identified by this method. They are the cement industry, the coal combustion, the oil combustion, and the metallurgic industry. Some other unidentified particles suggested that some more lead emitters might also exist in Shanghai.

Authors:
; ;  [1]
  1. and others
Publication Date:
Research Org.:
Shanghai Inst. of Nuclear Research (CN)
OSTI Identifier:
20080451
Resource Type:
Journal Article
Journal Name:
Environmental Science and Technology
Additional Journal Information:
Journal Volume: 34; Journal Issue: 10; Other Information: PBD: 15 May 2000; Journal ID: ISSN 0013-936X
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; LEAD; POLLUTION SOURCES; AIR POLLUTION MONITORING; CHINA; PARTICULATES

Citation Formats

Wang, J., Guo, P., and Li, X. Source identification of lead pollution in the atmosphere of Shanghai City by analyzing single aerosol particles (SAP). United States: N. p., 2000. Web. doi:10.1021/es9907818.
Wang, J., Guo, P., & Li, X. Source identification of lead pollution in the atmosphere of Shanghai City by analyzing single aerosol particles (SAP). United States. doi:10.1021/es9907818.
Wang, J., Guo, P., and Li, X. Mon . "Source identification of lead pollution in the atmosphere of Shanghai City by analyzing single aerosol particles (SAP)". United States. doi:10.1021/es9907818.
@article{osti_20080451,
title = {Source identification of lead pollution in the atmosphere of Shanghai City by analyzing single aerosol particles (SAP)},
author = {Wang, J. and Guo, P. and Li, X.},
abstractNote = {A new method combining the pattern recognition (PR) technique with micro-PIXE spectrum was used for direct assessment of lead pollution in the atmosphere of Shanghai City. Single aerosol particles (SAP) of PM{sub 10} (<10 {micro}m) were analyzed using the nuclear microprobe. Every particle is characterized with its micro-PICE spectrum, which can be considered its fingerprint. The PR technique was applied to trace a lead contaminated aerosol particle back to its source. The discrimination of different pollutant sources was enhanced with investigating the individual aerosol particles. The results showed that the lead contamination from automobile exhaust should not be neglected. The lead concentration with low level was detected in most unleaded gasoline particles; however, the highest lead level of 1,500 ppm was found in one of them. Furthermore, four other main pollutant sources contributing to the lead contamination in the Shanghai atmosphere were clearly identified by this method. They are the cement industry, the coal combustion, the oil combustion, and the metallurgic industry. Some other unidentified particles suggested that some more lead emitters might also exist in Shanghai.},
doi = {10.1021/es9907818},
journal = {Environmental Science and Technology},
issn = {0013-936X},
number = 10,
volume = 34,
place = {United States},
year = {2000},
month = {5}
}