IEECAS OpenIR  > 粉尘与环境研究室
Determinants of personal exposure to fine particulate matter (PM2.5) adult subjects in Hong Kong
Chen, Xiao-Cui1; Ward, Tony J.4; Cao, Jun-Ji3,5; Lee, Shun-Cheng6; Chow, Judith C.3,7; Lau, Gabriel N. C.1,8; Yim, Steve H. L.1,8; Ho, Kin-Fai1,2,3
AbstractPersonal monitoring for fine particulate matter (PM2.5) was conducted for adults (48 subjects, 18-63 years of age) in Hong Kong during the summer and winter of 2014-2015. All filters were analyzed for PM2.5 mass and constituents (including carbonaceous aerosols, water-soluble ions, and elements). We found that season (p = 0.02) and occupation (p < 0.001) were significant factors affecting the strength of the personal-ambient PM2.5 associations. We applied mixed-effects models to investigate the determinants of personal exposure to PM2.5 mass and constituents, along with within- and between-individual variance components. Ambient PM2.5 was the dominant predictor of (R-2 = 0.12-0.59, p < 0.01) and the largest contributor (>37.3%) to personal exposures for PM2.5 mass and most components. For all subjects, a one-unit (2.72 mu g/m(3)) increase in ambient PM2.5 was associated with a 0.75 mu g/m(3) (95% CI: 0.59-0.94 mu g/m(3)) increase in personal PM2.5 exposure. The adjusted mixed-effects models included information extracted from individual's activity diaries as covariates. The results showed that season, occupation, time indoors at home, in transit, and cleaning were significant determinants for PM2.5 components in personal exposure (R-beta(2) = 0.06-0.63, p < 0.05), contributing to 3.0-70.4% of the variability. For onehour extra time spent at home, in transit; and cleaning an average increase of 1.7-3.6% (ammonium, sulfate, nitrate, sulfur), 2.7-12.3% (elemental carbon, ammonium, titanium, iron), and 8.7-19.4% (ammonium, magnesium ions, vanadium) in components of personal PM2.5 were observed, respectively. In this research, the within-individual variance component dominated the total variability for all investigated exposure data except PM2.5 and EC. Results from this study indicate that performing long-term personal monitoring is needed for examining the associations of mass and constituents of personal PM2.5 with health outcomes in epidemiological studies by describing the impacts of individual-specific data on personal exposures. (C) 2018 Elsevier B.V. All rights reserved.
KeywordPersonal Exposure Fine Particulate Matter Particulate Constituents Time-activity Diaries Mixed-effects Model
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000432462000116
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Univ Hong Kong, Inst Environm Energy & Sustainabil, Hong Kong, Hong Kong, Peoples R China
2.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Hong Kong, Hong Kong, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol, Xian, Shaanxi, Peoples R China
4.Univ Montana, Sch Publ & Community Hlth Sci, Missoula, MT 59812 USA
5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China
6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China
7.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
8.Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xiao-Cui,Ward, Tony J.,Cao, Jun-Ji,et al. Determinants of personal exposure to fine particulate matter (PM2.5) adult subjects in Hong Kong[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,628-629(2):1165-1177.
APA Chen, Xiao-Cui.,Ward, Tony J..,Cao, Jun-Ji.,Lee, Shun-Cheng.,Chow, Judith C..,...&Ho, Kin-Fai.(2018).Determinants of personal exposure to fine particulate matter (PM2.5) adult subjects in Hong Kong.SCIENCE OF THE TOTAL ENVIRONMENT,628-629(2),1165-1177.
MLA Chen, Xiao-Cui,et al."Determinants of personal exposure to fine particulate matter (PM2.5) adult subjects in Hong Kong".SCIENCE OF THE TOTAL ENVIRONMENT 628-629.2(2018):1165-1177.
Files in This Item:
File Name/Size DocType Version Access License
Determinants of pers(2769KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Xiao-Cui]'s Articles
[Ward, Tony J.]'s Articles
[Cao, Jun-Ji]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Xiao-Cui]'s Articles
[Ward, Tony J.]'s Articles
[Cao, Jun-Ji]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Xiao-Cui]'s Articles
[Ward, Tony J.]'s Articles
[Cao, Jun-Ji]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.