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Microscale spatial distribution and health assessment of PM2.5-boundpolycyclic aromatic hydrocarbons (PAHs) at nine communities inXi'an, China
Xu,HM(Xu,Hongmei)[1,2,3]; Ho,S S H(Ho,Steven Sai Hang)[2,4]; Gao,M(Gao,Meiling)[5]; Cao,JJ(Cao,Junji)[2,6]; Guinot, B(Guinot, Benjamin)[3]; Ho,K F(Ho,Kin Fai)[7]; Long.X(Long,Xin)[2]; Wang,JZ(Wang,Jingzhi)[2]; Shen,ZX(Shen,Zhenxing)[1]; Liu,SX(Liu,Suixin)[2]; Zheng,CL(Zheng,Chunli)[1]; Zhang,Q(Zhang,Qian)[1]
2016-11
发表期刊Environmental Pollution
卷号218期号:2016页码:1065-1073
文章类型期刊论文
摘要

Spatial variability of polycyclic aromatic hydrocarbons (PAHs) associated with fine particulate matter (PM2.5) was investigated in Xi'an, China, in summer of 2013. Sixteen priority PAHs were quantified in 24-h integrated air samples collected simultaneously at nine urban and suburban communities. The total quantified PAHs mass concentrations ranged from 32.4 to 104.7 ng m−3, with an average value of 57.1 ± 23.0 ng m−3. PAHs were observed higher concentrations at suburban communities (average: 86.3 ng m−3) than at urban ones (average: 48.8 ng m−3) due to a better enforcement of the pollution control policies at the urban scale, and meanwhile the disorganized management of motor vehicles and massive building constructions in the suburbs. Elevated PAH levels were observed in the industrialized regions (west and northwest of Xi'an) from Kriging interpolation analysis. Satellite-based visual interpretations of land use were also applied for the supporting the spatial distribution of PAHs among the communities. The average benzo[a]pyrene-equivalent toxicity (Σ[BaP]eq) at the nine communities was 6.9 ± 2.2 ng m−3 during the sampling period, showing a generally similar spatial distribution to PAHs levels. On average, the excess inhalation lifetime cancer risk derived from Σ[BaP]eq indicated that eight persons per million of community residents would develop cancer due to PM2.5-bound PAHs exposure in Xi'an. The great in-city spatial variability of PAHs confirmed the importance of multiple points sampling to conduct exposure health risk assessment.

DOI10.1016/j.envpol.2016.08.058
收录类别SCI
语种英语
引用统计
被引频次:16[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/361006/5923
专题粉尘与环境研究室
作者单位1.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China;
2.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China;
3.Laboratoire d'A erologie, Universit e de Toulouse, CNRS, UPS, France;
4.Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA;
5.Berkeley Energy and Climate Institute, University of California, Berkeley, USA;
6.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China;
7.JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
推荐引用方式
GB/T 7714
Xu,HM,Ho,S S H,Gao,M,et al. Microscale spatial distribution and health assessment of PM2.5-boundpolycyclic aromatic hydrocarbons (PAHs) at nine communities inXi'an, China[J]. Environmental Pollution,2016,218(2016):1065-1073.
APA Xu,HM.,Ho,S S H.,Gao,M.,Cao,JJ.,Guinot, B.,...&Zhang,Q.(2016).Microscale spatial distribution and health assessment of PM2.5-boundpolycyclic aromatic hydrocarbons (PAHs) at nine communities inXi'an, China.Environmental Pollution,218(2016),1065-1073.
MLA Xu,HM,et al."Microscale spatial distribution and health assessment of PM2.5-boundpolycyclic aromatic hydrocarbons (PAHs) at nine communities inXi'an, China".Environmental Pollution 218.2016(2016):1065-1073.
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