气候变化领域集成服务门户(CCPortal): Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China

CCPortal

DOI	10.1016/j.atmosres.2020.105181
	Characteristics of indoor and personal exposure to particulate organic compounds emitted from domestic solid fuel combustion in rural areas of northwest China
	He K.; Xu H.; Feng R.; Shen Z.; Li Y.; Zhang Y.; Sun J.; Zhang Q.; Zhang T.; Yang L.; Liu P.; Ho K.F.; Cao J.
发表日期	2021
ISSN	0169-8095
卷号	248
英文摘要	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 μg·m−3, which was 2.4-times higher than the indoor concentration (130 ± 103 μg·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 (R2 = 0.9) was higher than that in the group using coal and biomass (Group M, R2 = 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. © 2020 Elsevier B.V.
英文关键词	Domestic solid fuel; Health risk; Indoor air pollution; Organic compounds; Personal exposure; Size distribution
语种	英语
scopus关键词	Briquetting; Coal; Esters; Exposure controls; Fuels; Health risks; Heating; Indoor air pollution; Particles (particulate matter); Polycyclic aromatic hydrocarbons; Rural areas; High molecular weight; Indoor concentration; International safety standards; Mean concentrations; Particulate organic compounds; Polycyclic aromatic hydrocarbons (PAHS); Short-term exposure; Solid fuel combustion; Coal combustion; atmospheric pollution; combustion; concentration (composition); ester; health risk; indoor air; organic compound; PAH; particulate organic matter; pollution exposure; rural area; China; Lamprididae
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141715
作者单位	Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China; SKLLQG, Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, China; JC School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong
推荐引用方式 GB/T 7714	He K.,Xu H.,Feng R.,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],2021,248.
APA	He K..,Xu H..,Feng R..,Shen Z..,Li Y..,...&Cao J..(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.
MLA	He K.,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).