Coarse particles and mortality in three Chinese cities: the China Air Pollution and Health Effects Study (CAPES). Academic Article uri icon

abstract

  • Evidence concerning the health risks of coarse particles (PM(10-2.5)) is limited. There have been no multi-city epidemiologic studies of PM(10-2.5) in developing Asian countries. We examine the short-term association between PM(10-2.5) and daily mortality in three Chinese cities: Beijing, Shanghai, and Shenyang. PM(10-2.5) concentrations were estimated by subtracting PM(2.5) from PM(10) measurements. Data were analyzed using the over-dispersed generalized linear Poisson models. The average daily concentrations of PM(10-2.5) were 101 g/m(3) for Beijing (2007-2008), 50 g/m(3) for Shanghai (2004-2008), and 49 g/m(3) for Shenyang (2006-2008). In the single-pollutant models, the three-city combined analysis showed significant associations between PM(10-2.5) and daily mortality from both total non-accidental causes and from cardiopulmonary diseases. A 10-g/m(3) increase in 1-day lagged PM(10-2.5) was associated with a 0.25% (95% CI: 0.08 to 0.42) increase in total mortality, 0.25% (95% CI: 0.10 to 0.40) increase in cardiovascular mortality, and 0.48% (95% CI: 0.20 to 0.76) increase in respiratory mortality. However, these associations became statistically insignificant after adjustment for PM(2.5). PM(2.5) was significantly associated with mortality both before and after adjustment for PM(10-2.5). In conclusion, there were no statistically significant associations between PM(10-2.5) and daily mortality after adjustment for PM(2.5) in the three Chinese cities.

published proceedings

  • Sci Total Environ

author list (cited authors)

  • Chen, R., Li, Y. i., Ma, Y., Pan, G., Zeng, G., Xu, X., Chen, B., & Kan, H.

complete list of authors

  • Chen, Renjie||Li, Yi||Ma, Yanjun||Pan, Guowei||Zeng, Guang||Xu, Xiaohui||Chen, Bingheng||Kan, Haidong

publication date

  • January 1, 2011 11:11 AM