Spatiotemporal analysis of particulate air pollution and ischemic heart disease mortality in Beijing, China

Xu, Meimei, Guo, Yuming, Zhang, Yajuan, Westerdahl, Dane, Mo, Yunzheng, Liang, Fengchao and Pan, Xiaochuan (2014) Spatiotemporal analysis of particulate air pollution and ischemic heart disease mortality in Beijing, China. Environmental Health, 13 1: 109.1-109.26. doi:10.1186/1476-069X-13-109

Author Xu, Meimei
Guo, Yuming
Zhang, Yajuan
Westerdahl, Dane
Mo, Yunzheng
Liang, Fengchao
Pan, Xiaochuan
Title Spatiotemporal analysis of particulate air pollution and ischemic heart disease mortality in Beijing, China
Journal name Environmental Health
ISSN 1476-069X
Publication date 2014-12-12
Sub-type Article (original research)
DOI 10.1186/1476-069X-13-109
Open Access Status DOI
Volume 13
Issue 1
Start page 109.1
End page 109.26
Total pages 26
Place of publication London, United Kingdom
Publisher BioMed Central
Language eng
Formatted abstract
Background: Few studies have used spatially resolved ambient particulate matter with an aerodynamic diameter of <10 µm (PM10) to examine the impact of PM10 on ischemic heart disease (IHD) mortality in China. The aim of our study is to evaluate the short-term effects of PM10 concentrations on IHD mortality by means of spatiotemporal analysis approach.

Methods: We collected daily data on air pollution, weather conditions and IHD mortality in Beijing, China during 2008 and 2009. Ordinary kriging (OK) was used to interpolate daily PM10 concentrations at the centroid of 287 township-level areas based on 27 monitoring sites covering the whole city. A generalizedadditive mixed model was used to estimate quantitatively the impact of spatially resolved PM10 on the IHD mortality. The co-effects of the seasons, gender and age were studied in a stratified analysis. Generalized additive model was used to evaluate the effects of averaged PM10 concentration as well.

Results: The averaged spatially resolved PM10 concentration at 287 township-level areas was 120.3 ±78.1 µg/m3. Ambient PM10 concentration was associated with IHD mortality in spatiotemporal analysis and the strongest effects were identified for the 2-day average. A 10µg/m3 increase in PM10 was associated with an increase of 0.33% (95% confidence intervals: 0.13%, 0.52%) in daily IHD mortality. The effect estimates using spatially resolved PM10 were larger than that using averaged PM10. The seasonal stratification analysis showed that PM10 had the statistically stronger effects on IHD mortality in summer than that in the other
seasons. Males and older people demonstrated the larger response to PM10 exposure.

Conclusions: Our results suggest that short-term exposure to particulate air pollution is associated with increased IHD mortality. Spatial variation should be considered for assessing the impacts of particulate air pollution on mortality.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Public Health Publications
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Created: Mon, 15 Dec 2014, 20:35:26 EST by Yuming Guo on behalf of School of Public Health