气候变化领域集成服务门户(CCPortal): Characterization of PM2.5- and PM10-bound polycyclic aromatic hydrocarbons in urban and rural areas in Beijing during the winter

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DOI	10.4028/www.scientific.net/AMR.518-523.1479
	Characterization of PM2.5- and PM10-bound polycyclic aromatic hydrocarbons in urban and rural areas in Beijing during the winter
	Dong, Xueling; Liu, Dameng; Gao, Shaopeng
通讯作者	Dong, XL (通讯作者)
发表日期	2012
ISSN	1022-6680
起始页码	1479
结束页码	+
卷号	518-523
英文摘要	Polycyclic aromatic hydrocarbons (PAHs) were here investigated in airborne particulate matter (PM2.5 and PM10) samples collected in urban (including residential, commercial, industrial, and traffic zones) and rural areas in and around Beijing from December 2005 to January 2006. Sixteen polycyclic aromatic hydrocarbons adsorbed onto fine- (PM2.5) and coarse- (PM10) grained samples were analyzed by gas chromatography-mass spectrometry (GC-MS). The mean total PAR concentrations were 30.1 and 80.1 ng/m(3) in PM2.5, and 44.1 and 99.8 ng/m(3) in PM10 in urban and rural areas, respectively. PAHs were mostly adsorbed on small inhalable particles (>50%) with four to six rings, which dominated both fractions. Strong correlations between PM-associated extractable organic matter (EOM) and particulate PAHs were found, especially in PM2.5, indicating that PM-PAHs concentrations were strongly influenced by PM-associated EOM. Of the different functional areas studied, the total PAH concentrations in both fractions were highest in industrial and rural areas and lowest in traffic zones. This may have been the result of the different emission sources and more efficient energy structures that occur during the winter. Distribution profiles and diagnostic ratios revealed that coal combustion was the major source of PM2.5- and PM10- associated PAHs. Additional sources of PAHs may include vehicle emissions, natural gas combustion and wood burning. BaP-based toxic equivalence factor (BaPeq), BaP-equivalent carcinogenic power (BaPE) and a sum of five carcinogenic PAHs showed that the industrial and rural areas were the most vulnerable to PAHs.
关键词	EXTRACTABLE ORGANIC-COMPOUNDS SOURCE APPORTIONMENT PARTICULATE MATTER SEASONAL-VARIATION N-ALKANES HONG-KONG ATMOSPHERIC AEROSOLS ENERGY STRUCTURE PAHS CHINA
英文关键词	Particle-bound PAHs; Spatial variations; Source analysis; Environmental health risks; Beijing
语种	英语
WOS研究方向	Chemistry ; Engineering ; Environmental Sciences & Ecology ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Engineering, Environmental ; Environmental Sciences ; Materials Science, Multidisciplinary
WOS记录号	WOS:000313845900285
来源期刊	ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6
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/257985
推荐引用方式 GB/T 7714	Dong, Xueling,Liu, Dameng,Gao, Shaopeng. Characterization of PM2.5- and PM10-bound polycyclic aromatic hydrocarbons in urban and rural areas in Beijing during the winter[J]. 中国科学院青藏高原研究所,2012,518-523.
APA	Dong, Xueling,Liu, Dameng,&Gao, Shaopeng.(2012).Characterization of PM2.5- and PM10-bound polycyclic aromatic hydrocarbons in urban and rural areas in Beijing during the winter.ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6,518-523.
MLA	Dong, Xueling,et al."Characterization of PM2.5- and PM10-bound polycyclic aromatic hydrocarbons in urban and rural areas in Beijing during the winter".ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6 518-523(2012).