Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong

doi:10.1016/j.scitotenv.2018.11.088

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong
	Chen, Xiao-Cui 5; Chow, Judith C.3,4; Ward, Tony J.6; Cao, Jun-Ji 3,7; Lee, Shun-Cheng 8; Watson, John G.3,4; Lau, Ngar-Cheung 2,5; Yim, Steve H. L.2,5; Ho, Kin-Fai 1,3,5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-03-01
卷号	654 页码:514-524
关键词	Personal exposure Ambient concentration Exposure factor Fine particles exposure of ambient origin Exposure measurement error
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.11.088
通讯作者	Ho, Kin-Fai(kfho@cuhk.edu.hk)
英文摘要	Personal exposure and ambient fine particles (PM2.5) measurements for 13 adult subjects (ages 19-57) were conducted in Hong Kong between April 2014 and June 2015. Six to 21 personal samples (mean = 19) per subject were obtained throughout the study period. Samples were analyzed for mass by gravimetric analysis, and 19 elements (from Na to Pb) were analyzed using X-Ray Fluorescence. Higher subject-specific correlations between personal and ambient sulfur (r(s) 0.92: p < 0.001) were found as compared to PM2.5 mass (r(s) 0.79; p < 0.001) and other elements (0.06 < r(s) < 0.86). Personal vs. ambient sulfur regression yielded an average exposure factor (F-pex) of 0.73 +/- 0.02, supporting the use of sulfur as a surrogate to estimate personal exposure to PM2.5 of ambient origin (E-a). E-a accounted for 41-82% and 57-73% of total personal PM2.5 exposures (P) by season and by subject, respectively. The importance of both E-a and non-ambient exposures (E-na, 11.2 +/- 5.6 mu g/m(3); 32.5 = 10.9%) are noted. Mixed-effects models were applied to estimate the relationships between ambient PM2.5 concentrations and their corresponding exposure variables (E-a,P). Higher correlations for E-a (0.90; p < 0.001) than for P (0.58; p < 0.01) were found. A calibration coefficient < 1 suggests an attenuation of 22% (ranging 16-28%) of the true elect estimates when using average ambient concentrations at central monitoring stations as surrogates for E-a. Stationary ambient data can be used to assess population exposure only if PM exposure is dominated by E-a. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	Hong Kong Environmental Protection Department[13-04909] ; Research Grants Council of the Hong Kong Special Administrative Region of China[412413] ; Chinese University of Hong Kong[4930744]
WOS关键词	LONG-TERM EXPOSURE ; PARTICULATE MATTER EPIDEMIOLOGY ; AIR-POLLUTION ; MEASUREMENT ERROR ; TIME-SERIES ; GENERATED EXPOSURE ; RESIDENTIAL INDOOR ; ELEMENTAL CARBON ; CHINESE MEGACITY ; OUTDOOR PM2.5
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000458630100134
资助机构	Hong Kong Environmental Protection Department ; Research Grants Council of the Hong Kong Special Administrative Region of China ; Chinese University of Hong Kong
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14304]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Ho, Kin-Fai
作者单位	1.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China 2.Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol, Xian, Shaanxi, Peoples R China 4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA 5.Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Hong Kong, Peoples R China 6.Univ Montana, Sch Publ & Community Hlth Sci, Missoula, MT USA 7.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China 8.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xiao-Cui,Chow, Judith C.,Ward, Tony J.,et al. Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,654:514-524.
APA	Chen, Xiao-Cui.,Chow, Judith C..,Ward, Tony J..,Cao, Jun-Ji.,Lee, Shun-Cheng.,...&Ho, Kin-Fai.(2019).Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong.SCIENCE OF THE TOTAL ENVIRONMENT,654,514-524.
MLA	Chen, Xiao-Cui,et al."Estimation of personal exposure to fine particles (PM2.5) of ambient origin for healthy adults in Hong Kong".SCIENCE OF THE TOTAL ENVIRONMENT 654(2019):514-524.