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
2018-07-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume628-629Issue:2Pages:1165-1177
SubtypeArticle
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
DOI10.1016/j.scitotenv.2018.02.049
WOS KeywordAMBIENT-GENERATED EXPOSURE ; RESIDENTIAL OUTDOOR ; TRACE-ELEMENTS ; AIR-POLLUTION ; BLACK SMOKE ; EMERGENCY HOSPITALIZATIONS ; CHEMICAL-COMPONENTS ; CHINESE MEGACITY ; EFFECTS MODELS ; FIXED-SITE
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000432462000116
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5132
Collection粉尘与环境研究室
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.
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