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Measurement of size-segregated airborne particulate bound polycyclic aromatic compounds and assessment of their human health impacts-A case study in a megacity of southwest China

文献类型：期刊论文

作者Tian, Mi1; Liang, Bo2; Zhang, Leiming3; Hu, Huilin5; Yang, Fumo4; Peng, Chao5; Chen, Yang5; Jiang, Changtan6; Wang, Jun6
刊名CHEMOSPHERE
出版日期2021-12-01
卷号284页码:8
关键词Nitrated PAHs Oxygenated PAHs Particle size distribution Dermal exposure Health risk assessment
ISSN号0045-6535
DOI10.1016/j.chemosphere.2021.131339
通讯作者Tian, Mi(tianmi628@cqu.edu.cn)
英文摘要Particle size distribution of particulate polycyclic aromatic compounds (PACs) is one of the important factors controlling human exposure to PACs in air. In this study, size-segregated airborne particle samples were collected in a megacity in southwest China to analyze PACs concentrations and evaluate related health risks. Annual average concentrations of sigma 19PAHs (polycyclic aromatic hydrocarbons, 17.4 ng/m3) and sigma 10OPAHs (oxygenated PAHs, 15.3 ng/m3) were one order of magnitude higher than those of sigma 9MPAHs (methyl PAHs, 0.97 ng/m3) and sigma 27NPAHs (nitrated PAHs, 1.54 ng/m3). More than 55% of PACs masses were associated with fine particles (aerodynamic diameter Dae < 2.1 mu m). Inhalation exposure assessment showed that less than 60% of particulate bound PACs could deposit in the respiratory tract, which implies that the traditional model using ambient concentration of PACs would overestimate the inhalation risk. On the other hand, incremental lifetime cancer risks from dermal absorption (ILCRderm) were comparable to those from inhalation (ILCRinh) exposure despite the much lower daily dermal absorption dose than the daily inhalation dose, which implies that the health impact might be underestimated if only considering inhalation exposure. Cancer risks from inhalation exposure were mainly attributed to fine particles while those from dermal exposure were mostly associated with coarse particles. Although neither ILCRderm nor ILCRinh exceeded the threshold value of 10-6 set by USEPA, the total ILCR exceeded this criterion, manifesting potential health risks from exposure to airborne particulate PACs in this region.
资助项目National Key Research and Development Program of China[2018YFC0214001] ; National Natural Science Foundation of China[41773148] ; Fundamental Research Funds for the Central Universities[2019CDXYCH0026] ; Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety[2019B030301008] ; Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX0959]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000703683300008
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://119.78.100.138/handle/2HOD01W0/14088]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Tian, Mi
作者单位1.Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, Minist Educ, Chongqing 400045, Peoples R China
2.Chongqing Acad Metrol & Qual Inspect, Mat Qual Supervis & Inspect Res Ctr, Chongqing 401123, Peoples R China
3.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON M3H 5T4, Canada
4.Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China
5.Chinese Acad Sci, Res Ctr Atmospher Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
6.Chongqing Environm Monitoring Ctr, Chongqing 401147, Peoples R China
推荐引用方式
GB/T 7714		 Tian, Mi,Liang, Bo,Zhang, Leiming,et al. Measurement of size-segregated airborne particulate bound polycyclic aromatic compounds and assessment of their human health impacts-A case study in a megacity of southwest China[J]. CHEMOSPHERE,2021,284:8.
APA Tian, Mi.,Liang, Bo.,Zhang, Leiming.,Hu, Huilin.,Yang, Fumo.,...&Wang, Jun.(2021).Measurement of size-segregated airborne particulate bound polycyclic aromatic compounds and assessment of their human health impacts-A case study in a megacity of southwest China.CHEMOSPHERE,284,8.
MLA Tian, Mi,et al."Measurement of size-segregated airborne particulate bound polycyclic aromatic compounds and assessment of their human health impacts-A case study in a megacity of southwest China".CHEMOSPHERE 284(2021):8.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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