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Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China
He, Kailai1; Xu, Hongmei1,2; Feng, Rong1; Shen, Zhenxing1; Li, Yaqi1; Zhang, Yue1; Sun, Jian1; Zhang, Qian3; Zhang, Tian1; Yang, Liu1; Liu, Pingping1; Ho, Kin Fai4; Cao, Junji2
通讯作者Xu, Hongmei(xuhongmei@xjtu.edu.cn)
2021-01-15
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
卷号248页码:10
摘要Household solid fuel combustion for heating in winter is a substantial source of air pollution in rural areas of northwest China. The present study investigated the concentration characteristics and health risks of particulate matter (PM) and its organic compounds, including polycyclic aromatic hydrocarbons (PAHs), oxygenated PAHs (OPAHs), and phthalate esters (PAEs). Indoor air and housewives' personal exposure (PE) samples were collected in Guanzhong Basin, among rural households relying on various solid fuels for heating in winter. Indoor PM primarily comprised fine PM (PM2.5, 76%), and its organic compounds were identified in particular abundance in households that used coal as the only domestic fuel (Group C, 96% in PM2.5). The mean concentration of PE to PM2.5 was 307 +/- 120 mu g center dot m(-3), which was 2.4-times higher than the indoor concentration (130 +/- 103 mu g center dot m(-3)) because of the housewives' short-term exposure to high-concentration pollution emitted by solid fuel combustion. Organic compounds exhibited the same pattern, with PE samples having a 44% higher concentration than indoor samples. The correlation of PM2.5-bound organics between indoor and PE samples in Group C (R-2 = 0.9) was higher than that in the group using coal and biomass (Group M, R-2 = 0.6), indicating the stronger correlation of single-fuel heating method. The PE/indoor ratio of high molecular weight (HMW) PAHs in Group C (2.5) was higher than that of the other organic compounds (1.3) because HMW PAHs emitted through coal combustion had a larger effect on PE. This further led to higher incremental lifetime cancer risks (ICLRs) via inhalation pathway among housewives in Group C (2.4 and 1.2-times higher risk for PAHs and PAEs, respectively) than among those in Group M. However, inhalational ILCR values of Group M were still 2.1-340-times higher than the international safety standard (10(-6)). Therefore, the upgradation of domestic fuels and heating ways is urgently needed in rural area of northwest China to reduce indoor air pollution and health risks.
关键词Personal exposure Indoor air pollution Domestic solid fuel Organic compounds Size distribution Health risk
DOI10.1016/j.atmosres.2020.105181
关键词[WOS]POLYCYCLIC AROMATIC-HYDROCARBONS ; LUNG-CANCER RISK ; PORT THERMAL-DESORPTION ; HOUSEHOLD AIR-POLLUTION ; GUANZHONG PLAIN ; SIZE DISTRIBUTIONS ; EMISSION FACTORS ; HEALTH-RISK ; SPATIAL-DISTRIBUTION ; PM EXPOSURE
收录类别SCI ; SCI
语种英语
资助项目National Natural Science Foundation of China[41877376] ; Key Project of Natural Science Basic Research Program of Shaanxi Province[2019JZ-36] ; Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01]
WOS研究方向Meteorology & Atmospheric Sciences
项目资助者National Natural Science Foundation of China ; Key Project of Natural Science Basic Research Program of Shaanxi Province ; Key Research and Development Program of Shaanxi Province
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000594097000006
出版者ELSEVIER SCIENCE INC
引用统计
被引频次:31[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/361006/15606
专题粉尘与环境研究室
通讯作者Xu, Hongmei
作者单位1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Peoples R China
3.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian, Peoples R China
4.Chinese Univ Hong Kong, JC Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China
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He, Kailai,Xu, Hongmei,Feng, Rong,et al. Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China[J]. ATMOSPHERIC RESEARCH,2021,248:10.
APA He, Kailai.,Xu, Hongmei.,Feng, Rong.,Shen, Zhenxing.,Li, Yaqi.,...&Cao, Junji.(2021).Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China.ATMOSPHERIC RESEARCH,248,10.
MLA He, Kailai,et al."Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China".ATMOSPHERIC RESEARCH 248(2021):10.
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