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- W2554072630 abstract "The samples of PM2.5 and PM10 inhalable particulate matter had been collected during the period of December 2001January 2002 at nineteen representative sites of Shanghai urban and suburb area in order to investigate the chemical characterization of aerosol particle in winter. The samples were analyzed to determine the average concentrations for up to twenty elements by means of the Particle Induced X-ray Emission (PIXE). It is found that the average elemental concentrations in the urban center are higher than those in the suburb, except for Ti and P. The particulate mass data demonstrate that the ratio range of PM2.5 / PM10 is from 0.32 to 0.85 and its average ratio is 0.6. The result of enrichment factor shows that the inhalable particles may be divided into two categories, i.e. soil elements from earth crust and anthropogenic pollution elements. It is noticed that the toxic or harmful elements such as S, As, Pb, Ni, Mn and Se are mainly enriched in fine particles with diameter less than 2.5µm. The fingerprints of major pollution sources such as coal (or oil) burning, vehicle exhaust emission and industry are also presented and discussed." @default.
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- W2554072630 date "2004-01-01" @default.
- W2554072630 modified "2023-09-23" @default.
- W2554072630 title "Characterization of PM10 and PM2.5 Particulate Matter Collected in Winter Season of Shanghai City by PIXE" @default.
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