PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment

doi:10.1016/j.jes.2017.12.025

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	PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment
	Feng, Baihuan 1,2; Li, Lijuan 3; Xu, Hongbing 1; Wang, Tong 1; Wu, Rongshan 1; Chen, Jie 1; Zhang, Yi 1; Liu, Shuo 1; Ho, Steven Sai Hang 3; Cao, Junji 3
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
	2019-03-01
卷号	77 页码:11-19
关键词	PM2.5 PAHs Seasonal variation Sources Cancer risk assessment
ISSN号	1001-0742
DOI	10.1016/j.jes.2017.12.025
通讯作者	Huang, Wei(whuang@bjmu.edu.cn)
英文摘要	Polycyclic aromatic hydrocarbons (PAHs) have been of health concern due to its carcinogenesis and mutagenesis. In this study, we aimed to assess the variations, sources, and lifetime excessive cancer risk (ECR) attributable to PAHs bound to ambient particulate matters with aerodynamic diameter less than 2.5 mu m (PM2.5) in metropolitan Beijing China. We collected 24-hour integrated PM2.5 samples on daily basis between November 2014 and June 2015 across both central heating (cold months) and non-heating (warm months) seasons, and further analyzed the PAH components in these daily PM2.5 samples. Our results showed that total concentrations of PM2.5-bound PAHs varied between (88.6 +/- 75.4) ng/m(3) in the cold months and (11.0 +/- 5.9) ng/m(3) in the warm months. Benzo[a]pyrene (BaP), the carcinogenic marker of PAHs, averaged at 5.7 and 0.4 ng/m(3) in the cold and warm months, respectively. Source apportionment analyses illustrated that gasoline, biomass burning, diesel, coal combustion and cooking were the major contributors, accounting for 12.9%, 17.8%, 24.7%, 24.3% and 6.4% of PM2.5-bound PAHs, respectively. The BaP equivalent lifetime ECR from inhalation of PM2.5-bound PAHs was 16.2 cases per million habitants. Our results suggested that ambient particulate reduction from energy reconstruction and adaption of dean fuels would result in reductions PM2.5-bound PAHs and its associated cancer risks. However, as only particulate phased PAHs was analyzed in the present study, the concentration of ambient PAHs could be underestimated. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
资助项目	Beijing Natural Science Foundation[L150001] ; Peking University Health Science Center 100 Talent Young Investigator Program ; Peking University Infrastructure Fund for Clinical Research[2013-3-02]
WOS关键词	SOURCE APPORTIONMENT ; ORGANIC-COMPOUNDS ; OUTDOOR AIR ; N-ALKANES ; PARTICULATE MATTER ; URBAN ; IDENTIFICATION ; ATMOSPHERE ; PM10 ; CARCINOGENICITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000463374900002
资助机构	Beijing Natural Science Foundation ; Peking University Health Science Center 100 Talent Young Investigator Program ; Peking University Infrastructure Fund for Clinical Research
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14168]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Huang, Wei
作者单位	1.Peking Univ, Sch Publ Hlth, Dept Occupat & Environm Hlth, Beijing 100871, Peoples R China 2.Peking Univ, Key Lab Mol Cardiovasc Sci, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Earth & Environm, Xian 710061, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Feng, Baihuan,Li, Lijuan,Xu, Hongbing,et al. PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2019,77:11-19.
APA	Feng, Baihuan.,Li, Lijuan.,Xu, Hongbing.,Wang, Tong.,Wu, Rongshan.,...&Huang, Wei.(2019).PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,77,11-19.
MLA	Feng, Baihuan,et al."PM2.5 -bound polycyclic aromatic hydrocarbons (PAHs) in Beijing: Seasonal variations, sources, and risk assessment".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 77(2019):11-19.