气候变化领域集成服务门户(CCPortal): Distribution and source apportionment of polycyclic aromatic hydrocarbons from atmospheric particulate matter PM2.5 in Beijing

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DOI	10.1007/s00376-008-0297-9
	Distribution and source apportionment of polycyclic aromatic hydrocarbons from atmospheric particulate matter PM2.5 in Beijing
	Liu Dameng; Gao Shaopeng; An Xianghua
通讯作者	Liu, DM (通讯作者)
发表日期	2008
ISSN	0256-1530
EISSN	1861-9533
起始页码	297
结束页码	305
卷号	25 期号:2
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 (65 mu g 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 liquid chromatography (HPLC) with variable wavelength detector (VWD) and fluorescence detector (FLD) employed. The PM2.5 concentrations indicate that the pollution situation is still serious in Beijing. The sum of 16 PAHs concentrations ranged from 22.17 to 5366 ng m(-3). The concentrations of the heavier molecular weight PAHs have a different pollution trend from the lower PAHs. Seasonal variations were mainly attributed to the difference in coal combustion emission and meteorological conditions. The source apportionment analysis suggests that PAHs from PM2.5 in Beijing city mainly come from coal combustion and vehicle exhaust emission. New measures about restricting coal combustion and vehicle exhaust must be established as soon as possible to improve the air pollution situation in Beijing city.
关键词	URBAN TIANJIN PAHS AIR
英文关键词	distribution and occurrence; source apportionment; PM2.5; polycyclic aromatic hydrocarbons (PAHs); HPLC; Beijing city
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000254023500011
来源期刊	ADVANCES IN ATMOSPHERIC SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257572
推荐引用方式 GB/T 7714	Liu Dameng,Gao Shaopeng,An Xianghua. Distribution and source apportionment of polycyclic aromatic hydrocarbons from atmospheric particulate matter PM2.5 in Beijing[J]. 中国科学院青藏高原研究所,2008,25(2).
APA	Liu Dameng,Gao Shaopeng,&An Xianghua.(2008).Distribution and source apportionment of polycyclic aromatic hydrocarbons from atmospheric particulate matter PM2.5 in Beijing.ADVANCES IN ATMOSPHERIC SCIENCES,25(2).
MLA	Liu Dameng,et al."Distribution and source apportionment of polycyclic aromatic hydrocarbons from atmospheric particulate matter PM2.5 in Beijing".ADVANCES IN ATMOSPHERIC SCIENCES 25.2(2008).