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- W2350657612 abstract "To investigate seasonal variation,size distribution and source of carbonaceous matters,aerosol samples were collected by cascade impactor from Mar.2010 to Feb.2011 in Beijing.Organic carbon(OC) and Element carbon(EC) were detected by DRI 2001A carbon analyzer.The results showed that OC exhibited almost the same content in coarse and fine particles and EC were mainly enriched in fine particles(2.1 μm),which accounted for(52±11)% and(70±22)%,respectively.The OC concentrations were higher in winter and summer than in spring and autumn,and EC concentrations were higher in autumn and winter than in spring and summer.The size distributions of OC and EC showed a bi-modal with peaks in the size of 0.43—1.1 μm and 0.43—0.65 μm in fine particles,respectively,and 4.7—5.8 μm in coarse particles.The size,width and height of peaks were different in four seasons.The results of seasonal size distributions and correlations between OC and EC indicated that coal combustion is the main source for OC and EC in winter and exhaust of motor vehicle is the major source for EC in summer." @default.
- W2350657612 created "2016-06-24" @default.
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- W2350657612 date "2013-01-01" @default.
- W2350657612 modified "2023-09-22" @default.
- W2350657612 title "Characteristics and size distributions of organic and element carbon of atmospheric particulate matters in Beijing,China" @default.
- W2350657612 hasPublicationYear "2013" @default.
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