气候变化领域集成服务门户(CCPortal): Seasonal variations of atmospheric heterocyclic aromatic amines in Beijing, China

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DOI	10.1016/j.atmosres.2012.09.010
	Seasonal variations of atmospheric heterocyclic aromatic amines in Beijing, China
	Dong, Xueling; Liu, Dameng; Gao, Shaopeng
通讯作者	Dong, XL (通讯作者)
发表日期	2013
ISSN	0169-8095
起始页码	287
结束页码	297
卷号	120
英文摘要	Heterocyclic aromatic amines (HAAS) belong to a group of substances associated with a high mutagenic and carcinogenic potential. This study reports that carcinogenic HAAs may be present in airborne particles. Airborne particles (PM10) were sampled from March 2005 to January 2006 at four urban sites in Beijing. Collected particulate matter was analyzed for six HAAs using high-performance liquid chromatography (HPLC) with fluorescence and UV detection. Clear seasonal variations of HAAs were observed with seasonal mass concentrations ranging from 0.66 +/- 0.20 ng m(-3) (summer) to 19.76 +/- 14.38 ng m(-3) (autumn). The carcinogenic amino-imidazo-azaarenes, including 2-Amino-3-methyl-3H-imidazo[4,5-f] quinoline (IQ), 2-Amino-3,4-dimethyl-3H-imidazo[4,5-f] quinoline (MeIQ), and 2-Amino-1-methyl-6-phenylimidazo[4,5-b] pyridine (PhIP), were the major components with 752-87.0% of the total HAAs during the whole year except for summer. 3-Amino-1-methyl-5H-pyrido[3,4-b] indole (Trp-P-2), 2-Amino-9H-pyrido [2,3-b] indole (A alpha C), and 2-Amino-3-methyl-9H-pyrido[2,3-b] indole (MeA alpha C), with similar structures, were found to have similar seasonal patterns and strong correlations (r=0.63-0.90) throughout the observation, which indicates that they most likely come from similar emission sources. Positive correlations between site-specific HAA concentrations and the relative humidity were observed. Of the different sites studied, the total HAA concentrations were most abundant at commercial sites and the smallest at residential sites. The combustion aerosols emitted from cooking, coal, and petroleum may be the sources of these carcinogens in the atmosphere, and cooking emissions may probably play an important role in Beijing's HAAs pollution. (C) 2012 Elsevier B.V. All rights reserved.
关键词	PERFORMANCE LIQUID-CHROMATOGRAPHY DIESEL-EXHAUST PARTICLES PARTICULATE MATTER SOURCE APPORTIONMENT MASS-SPECTROMETRY ORGANIC-COMPOUNDS ALPHA-CARBOLINES POLYCHLORINATED-BIPHENYLS AIRBORNE PARTICLES GAMMA-CARBOLINES
英文关键词	Heterocyclic aromatic amines (HAAs); Particulate matter; Seasonal variations; Beijing
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000312825700023
来源期刊	ATMOSPHERIC RESEARCH
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/258110
推荐引用方式 GB/T 7714	Dong, Xueling,Liu, Dameng,Gao, Shaopeng. Seasonal variations of atmospheric heterocyclic aromatic amines in Beijing, China[J]. 中国科学院青藏高原研究所,2013,120.
APA	Dong, Xueling,Liu, Dameng,&Gao, Shaopeng.(2013).Seasonal variations of atmospheric heterocyclic aromatic amines in Beijing, China.ATMOSPHERIC RESEARCH,120.
MLA	Dong, Xueling,et al."Seasonal variations of atmospheric heterocyclic aromatic amines in Beijing, China".ATMOSPHERIC RESEARCH 120(2013).