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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, Xuesong1,2; Shen, Zhenxing1,2,3; Zhang, Qian4; Zeng, Yaling1; Sun, Jian1; Ho, Steven Sai Hang5; Le, Yali1; Zhang, Tian1; Xu, Hongmei1; Cui, Song3; Huang, Yu2; Cao, Junji2
通讯作者Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
2019-10-15
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号687页码:188-197
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.
关键词Urban fugitive dust Polycyclic aromatic hydrocarbons (PAHs) Source identification Health risk evaluation Chinese cities
DOI10.1016/j.scitotenv.2019.06.099
关键词[WOS]HEALTH-RISK ASSESSMENT ; SAN-JOAQUIN VALLEY ; ROAD DUST ; PARTICULATE MATTER ; GAS-CHROMATOGRAPHY ; SIZE-DISTRIBUTION ; INDUSTRIAL-CITY ; STREET DUST ; EMISSION ; PM10
收录类别SCI ; SCI
语种英语
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研究方向Environmental Sciences & Ecology
项目资助者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
WOS类目Environmental Sciences
WOS记录号WOS:000480316300021
出版者ELSEVIER
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/13580
专题粉尘与环境研究室
通讯作者Shen, Zhenxing
作者单位1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Shaanxi, Peoples R China
3.Northeast Agr Univ, Int Joint Res Ctr Persistent Tox Pollutants, Sch Water Conservancy & Civil Engn, Harbin 150030, Heilongjiang, Peoples R China
4.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Shaanxi, Peoples R China
5.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
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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.
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