Source apportionment and health risk assessment of VOCs during the haze period in the winter in beijing

被引：6
|
作者：
Liu D. [1 ,2 ]
Xie Q. [1 ]
Zhang X. [2 ]
Wang H.-L. [3 ]
Yan Z.-Y. [1 ,2 ]
Yang H.-W. [4 ]
Hao Z.-P. [2 ]
机构：
[1] School of Chemical & Environmental Engineering, China University of Mining & Technology, Beijing
[2] Department of Environmental Nano-materials and Technologies, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing
[3] Beijing Municipal Research Institute of Environmental Protection, Beijing
[4] College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot
来源：
Huanjing Kexue/Environmental Science | 2016年 / 37卷 / 10期
关键词：
Haze; Health risk assessment(HRA); PMF Model; Source Apportionment; Volatileorganic compounds (VOCs);
D O I：
10.13227/j.hjkx.2016.10.003
中图分类号：
学科分类号：
摘要：
A method for determining volatile organic compounds (VOCs) by cryogenic dynamic adsorption in solid adsorbent tubes, subsequent thermal desorption with cryofocusing in a cold trap and analysis by gas chromatography and mass spectrometry was adapted for continuous ambient air monitoring. VOCs pollution characteristics and health risk assessment (HRA)were researched in detail. Moreover, the sources apportionment was reliably analyzed by positive matrix factorization (PMF) model. The results showed that the average concentration of VOCs was 332.34 μg·m-3 per day, the concentrations of aromatic hydrocarbon and halo hydrocarbon were remarkably high compared to the other VOCs. Particularly, the PMF analysis results revealed that solvent/paint use emission, biomass or coal combustion and motor vehicle exhaust emissions were the main pollutants emission sources. Additionally, the cancer risk index of all carcinogenic substances was higher than the suggested value of USEPA(1×10-6), which could cause potential harm to human health. © 2016, Science Press. All right reserved.
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页码：3693 / 3701
页数：8
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