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Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China
Huang, W (Huang, Wei)[1,2]; Cao, JJ (Cao, Junji)[3]; Tao, YB (Tao, Yebin)[1,2]; Dai, LZ (Dai, Lingzhen)[1,2]; Lu, SE (Lu, Shou-En)[4]; Hou, B (Hou, Bin); Wang, Z (Wang, Zheng)[5]; Zhu, T (Zhu, Tong)[1,2]
2012-03-15
Source PublicationAMERICAN JOURNAL OF EPIDEMIOLOGY
Volume175Issue:6Pages:556-566
Subtype期刊论文
Abstract

The authors conducted a time-series analysis to examine seasonal variation of mortality risk in association with particulate matter less than 2.5 mu m in aerodynamic diameter (PM2.5) and chemical species in Xi'an, China, using daily air pollution and all-cause and cause-specific mortality data (2004-2008). Poisson regression incorporating natural splines was used to estimate mortality risks of PM2.5 and its chemical components, adjusting for day of the week, time trend, and meteorologic effects. Increases of 2.29% (95% confidence interval: 0.83, 3.76) for all-cause mortality and 3.08% (95% confidence interval: 0.94, 5.26) for cardiovascular mortality were associated with an interquartile range increase of 103.0 mu g/m(3) in lagged 1-2 day PM2.5 exposure. Stronger effects were observed for the elderly (>= 65 years), males, and cardiovascular diseases groups. Secondary components (sulfate and ammonium), combustion species (elemental carbon, sulfur, chlorine), and transition metals (chromium, lead, nickel, and zinc) appeared most responsible for increased risk, particularly in the cold months. The authors concluded that differential association patterns observed across species and seasons indicated that PM2.5-related effects might not be sufficiently explained by PM2.5 mass alone. Future research is needed to examine spatial and temporal varying factors that might play important roles in modifying the PM2.5-mortality association.

KeywordChemical Components Excess Relative Risk Mortality Pm2.5 Time Series Xi’an
DOI10.1093/aje/kwr342
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10189
Collection粉尘与环境研究室
Corresponding AuthorZhu, T (Zhu, Tong)[1,2]
AffiliationCollege of Environmental Sciences and Engineering and Center for Environment and Health,Peking University, 5, Yiheyuan Road, Beijing, China 100871
Recommended Citation
GB/T 7714
Huang, W ,Cao, JJ ,Tao, YB ,et al. Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China[J]. AMERICAN JOURNAL OF EPIDEMIOLOGY,2012,175(6):556-566.
APA Huang, W .,Cao, JJ .,Tao, YB .,Dai, LZ .,Lu, SE .,...&Zhu, T .(2012).Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China.AMERICAN JOURNAL OF EPIDEMIOLOGY,175(6),556-566.
MLA Huang, W ,et al."Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China".AMERICAN JOURNAL OF EPIDEMIOLOGY 175.6(2012):556-566.
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