<正>A total of 11 PM2.5 samples were collected from October 2003 to October 2004 at 8 sampling sites in Beijing city. The PM2.5 concentrations are all above the PM2.5 pollution standard (65μg m-3) established by Environmental Protection Agency, USA (USEPA) in 1997 except for the Ming Tombs site. PM2.5 concentrations in winter are much higher than in summer. The 16 Polycyclic aromatic hydrocarbons (PAHs) listed as priority pollutants by USEPA in PM2.5 were completely identified and quantified by high performa...
【英文摘要】
A total of 11 PM2.5 samples were collected from October 2003 to October 2004 at 8 sampling sites in Beijing city. The PM2.5 concentrations are all above the PM2.5 pollution standard (65μg m-3) established by Environmental Protection Agency, USA (USEPA) in 1997 except for the Ming Tombs site. PM2.5 concentrations in winter are much higher than in summer. The 16 Polycyclic aromatic hydrocarbons (PAHs) listed as priority pollutants by USEPA in PM2.5 were completely identified and quantified by high performance...
【更新日期】
2008-04-02
【分类号】
P402
【正文快照】
1 .Introduetion Polyeyelie aromatie饰droearbons(PAHs)are generated rnainly by iizeoinPlete eomb一，stion of or- ganie Inaterials from both natural axid alitliroPogenie sollrees(Cineinelli et al.，2003:Zeng，2002).Wllile the natural sourees sueh as forest
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