Characterization of polycyclic aromatic hydrocarbon (PAHs) source profiles in urban PM2.5 fugitive dust: A large-scale study for 20 Chinese cites

doi:10.1016/j.scitotenv.2019.06.099

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	Characterization of polycyclic aromatic hydrocarbon (PAHs) source profiles in urban PM2.5 fugitive dust: A large-scale study for 20 Chinese cites
	Gong, Xuesong 1,2; Shen, Zhenxing 1,2,5; Zhang, Qian 3; Zeng, Yaling 2; Sun, Jian 2; Ho, Steven Sai Hang 4; Le, Yali 2; Zhang, Tian 2; Xu, Hongmei 2; Cui, Song 5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-10-15
卷号	687 页码:188-197
关键词	Urban fugitive dust Polycyclic aromatic hydrocarbons (PAHs) Source identification Health risk evaluation Chinese cities
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2019.06.099
通讯作者	Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
英文摘要	Polycyclic aromatic hydrocarbons (PAHs) in road dust (RD) and construction dust (CD) in PM2.5 were quantified in the samples collected in 20 Chinese cities. The PAHs profiles in urban PM2.5 fugitive dusts were determined and their potential health risks were evaluated. Seven geographical regions in China were identified as northwest China (NWC), the North China Plain (NCP), northeast China (NEC), central China (CC), south China (SC), south-west China (SWC), and east China (EC). The overall average concentrations of total quantified PAHs (Sigma PAHs) were 23.2 +/- 18.9 and 22.8 +/- 29.6 mu g.g(-1) in RD and CD of PM2.5, indicating that severe PAHs pollution to urban fugitive dusts in China. The differences of SPAHs between RD and CD were minor in northern and central regions of China but much larger in southern and east regions. The Sigma PAHs for RD displayed a pattern of "high in northern and low in southern", and characterized by large abundance of high molecular weights (HMWs) PAHs, indicating that vehicle emission was the predominant pollution origin. Additionally, higher diagnostic ratios of fluoranthene/(fluoranthene + pyrene) in NCP, CC, and SWC suggest critical contributions of biomass burning and coal combustion for RD in these areas. In comparison, gasoline combustion was the major pollution source for CD PAHs in NWC, NCP, NEC, and CC, whereas industrial emissions such as cement production and iron smelting had strong impacts in the heavy industrial regions. The total benzo[a] pyrene (BaP) carcinogenic potency concentrations (BaPTEQ) for RD and CD both showed the lowest in SC (0.05 and 0.07, respectively) and the highest in NCP (10.99 and 7.67, respectively). The highest and lowest incremental life cancer risks (ILCR) were found in NCP and SC, coinciding with the spatial distributions of ambient PAHs levels. The total CD-related cancer risks for adults and children (similar to 10(-4)) suggest high potential health risks in NCP, SWC, and NWC, whereas the evaluated values in EC and SC indicate virtual safety (<= 10(-6)). (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Project of Causes and Treatment of Heavy Air Pollution[DQGG0105-01] ; Ministry of Science and Technology of the People's Republic of China[2013FY112700] ; SKLLQG, Chinese Academy of Sciences[SKLLQG1616]
WOS关键词	HEALTH-RISK ASSESSMENT ; SAN-JOAQUIN VALLEY ; ROAD DUST ; PARTICULATE MATTER ; GAS-CHROMATOGRAPHY ; SIZE-DISTRIBUTION ; INDUSTRIAL-CITY ; STREET DUST ; EMISSION ; PM10
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000480316300021
资助机构	National Project of Causes and Treatment of Heavy Air Pollution ; Ministry of Science and Technology of the People's Republic of China ; SKLLQG, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13579]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Shen, Zhenxing
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Shaanxi, Peoples R China 2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 3.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Shaanxi, Peoples R China 4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA 5.Northeast Agr Univ, Int Joint Res Ctr Persistent Tox Pollutants, Sch Water Conservancy & Civil Engn, Harbin 150030, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Gong, Xuesong,Shen, Zhenxing,Zhang, Qian,et al. Characterization of polycyclic aromatic hydrocarbon (PAHs) source profiles in urban PM2.5 fugitive dust: A large-scale study for 20 Chinese cites[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,687:188-197.
APA	Gong, Xuesong.,Shen, Zhenxing.,Zhang, Qian.,Zeng, Yaling.,Sun, Jian.,...&Cao, Junji.(2019).Characterization of polycyclic aromatic hydrocarbon (PAHs) source profiles in urban PM2.5 fugitive dust: A large-scale study for 20 Chinese cites.SCIENCE OF THE TOTAL ENVIRONMENT,687,188-197.
MLA	Gong, Xuesong,et al."Characterization of polycyclic aromatic hydrocarbon (PAHs) source profiles in urban PM2.5 fugitive dust: A large-scale study for 20 Chinese cites".SCIENCE OF THE TOTAL ENVIRONMENT 687(2019):188-197.