Compositions, sources and health risks of ambient volatile organic compounds (VOCs) at a petrochemical industrial park along the Yangtze River

被引:126
作者
Zheng, Huang [1 ,2 ]
Kong, Shaofei [1 ]
Yan, Yingying [1 ]
Chen, Nan [3 ]
Yao, Liquan [1 ,2 ]
Liu, Xi [1 ]
Wu, Fangqi [1 ]
Cheng, Yi [1 ]
Niu, Zhenzhen [1 ]
Zheng, Shurui [1 ]
Zeng, Xin [2 ]
Yan, Qin [1 ,2 ]
Wu, Jian [1 ,2 ]
Zheng, Mingming [2 ,3 ]
Liu, Dantong [4 ]
Zhao, Delong [5 ]
Qi, Shihua [2 ]
机构
[1] China Univ Geosci, Sch Environm Sci, Dept Atmospher Sci, Wuhan 430074, Peoples R China
[2] China Univ Geosci, Sch Environm Sci, Dept Environm Sci & Technol, Wuhan 430074, Peoples R China
[3] Hubei Environm Monitoring Ctr, Wuhan 430072, Peoples R China
[4] Zhejiang Univ, Sch Earth Sci, Dept Atmospher Sci, Hangzhou 310058, Peoples R China
[5] Beijing Weather Modificat Off, Beijing 100089, Peoples R China
关键词
Volatile organic compounds; Petrochemical industrial park; Source apportionment; Health risk assessment; Monte-Carlo simulation; POLYCYCLIC AROMATIC-HYDROCARBONS; SOURCE APPORTIONMENT; CHINA; EMISSIONS; EXPOSURE; PM2.5; PAHS; REACTIVITY; POLLUTION; PROFILES;
D O I
10.1016/j.scitotenv.2019.135505
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Petrochemical industry (PI) is an important emission sector of anthropogenic volatile organic compounds (VOCs). The health impacts of VOCs from PI have caused a wide attention by both scientists and publics. In this study, compositions, sources and health risks of VOCs at a typical petrochemical industrial park along the middle reach of Yangtze River were studied. The total VOC concentrations were in the range of 5.59 to 541 ppbv with a mean value of 54.8 ppbv. Alkanes (41.4 +/- 15.7%) were the predominant group, followed by alkenes (19.9 +/- 18.3%), OVOCs (14.7 +/- 9.26%), halo hydrocarbon (11.2 +/- 6.42%), aromatics (8.17 +/- 5.08%), and acetylene (4.54 +/- 2.80%). Compound-specific health risk results showed that acrolein and 1,3-butadiene had the highest non-carcinogenic risk (expressed by hazard ratio, HR: 22.8) and carcinogenic risk (expressed by lifetime cancer risk, LCR: 6.7 x 10(-3)), respectively. Positive matrix factorization (PMF) model identified four VOC sources including fuel evaporation, industrial sources, ethylene industry and regional background with the average contributions of 35.6%, 12.0%, 26.5% and 25.9%, respectively. The receptor-originated approach combining the PMF model and conventional methods (HR and LCR) was used to assess the source-specific health risks. The non-cancer risks of four VOC sources were above safe level with regional background contributing most (38.3% or 4.91) to HR. The cancer risks of the four sources were below the tolerable level (<10(-4)) and regional background also contributed most, with relative contribution of 58.4% (or 10(-4.22)) to LCR. Our results are conductive to the formulation of countermeasures to reduce human exposure to ambient VOCs at petrochemical industrial parks in China. (c) 2019 Elsevier B.V. All rights reserved.
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页数:12
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