Seasonal pollution characteristics of organic compounds in atmospheric   fine particles in Beijing

doi:10.1016/j.scitotenv.2005.05.044

CORC > 北京大学 > 环境科学与工程学院

	Seasonal pollution characteristics of organic compounds in atmospheric fine particles in Beijing
	He, LY ; Hu, M ; Huang, XF ; Zhang, YH ; Tang, XY
刊名	science of the total environment
	2006
关键词	PM2.5 organic compounds tracer coal combustion biomass burning POLYCYCLIC AROMATIC-HYDROCARBONS AIRBORNE PARTICULATE MATTER WESTERN UNITED-STATES DICARBOXYLIC-ACIDS SOURCE APPORTIONMENT CHEMICAL-CHARACTERIZATION MOLECULAR TRACERS PM2.5 AEROSOLS AIR IDENTIFICATION
DOI	10.1016/j.scitotenv.2005.05.044
英文摘要	Beijing is a rapidly developing city with severe and unique air pollution problems. Organic matter is the most abundant fraction in fine particles in Beijing, occupying 30-50% of the total mass, indicating its key role in air pollution control. However, detailed chemical characterization of particulate organic matter in Beijing has never been reported. In this study, fine particles in the urban atmosphere in Beijing were investigated for its organic components by GC/MS technique. Over 100 individual organic compounds were identified and quantified in 25 PM2.5 samples from the summer, autumn and winter of 2002-2003. Alkanes, fatty acids, dicarboxylic acids, polycyclic aromatic hydrocarbons and some important tracer compounds (hopanes, levoglucosan and steroids) were the major constituents with the sum of their concentrations of 502, 1471 and 1403 ng m(-3) in summer, autumn and winter, respectively. Different organic compounds presented apparently different seasonal characteristics, reflecting their different dominant emission sources, such as coal combustion, biomass burning and cooking emission. The abundance and origin of these organic compounds are discussed to reveal seasonal air pollution characteristics of Beijing. (C) 2005 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000237011700016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); EI; PubMed; 63; ARTICLE; 1-3; 167-176; 359
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/199512]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	He, LY,Hu, M,Huang, XF,et al. Seasonal pollution characteristics of organic compounds in atmospheric fine particles in Beijing[J]. science of the total environment,2006.
APA	He, LY,Hu, M,Huang, XF,Zhang, YH,&Tang, XY.(2006).Seasonal pollution characteristics of organic compounds in atmospheric fine particles in Beijing.science of the total environment.
MLA	He, LY,et al."Seasonal pollution characteristics of organic compounds in atmospheric fine particles in Beijing".science of the total environment (2006).