Seasonal Variation of Chemical Species Associated With Short-Term   Mortality Effects of PM2.5 in Xi&apos;an, a Central City in China

doi:10.1093/aje/kwr342

CORC > 北京大学 > 环境科学与工程学院

	Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China
	Huang, Wei ; Cao, Junji ; Tao, Yebin ; Dai, Lingzhen ; Lu, Shou-En ; Hou, Bin ; Wang, Zheng ; Zhu, Tong
刊名	美国流行病学杂志
	2012
关键词	chemical components excess relative risk mortality PM2 5< INF> time series Xi&apos PARTICULATE AIR-POLLUTION TIME-SERIES-ANALYSIS AMBIENT AIR COMPONENTS HEALTH MATTER CITIES CALIFORNIA COMMUNITIES ADMISSIONS an
DOI	10.1093/aje/kwr342
英文摘要	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.; Public, Environmental & Occupational Health; SCI(E); 0; ARTICLE; 6; 556-566; 175
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/324429]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Huang, Wei,Cao, Junji,Tao, Yebin,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]. 美国流行病学杂志,2012.
APA	Huang, Wei.,Cao, Junji.,Tao, Yebin.,Dai, Lingzhen.,Lu, Shou-En.,...&Zhu, Tong.(2012).Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China.美国流行病学杂志.
MLA	Huang, Wei,et al."Seasonal Variation of Chemical Species Associated With Short-Term Mortality Effects of PM2.5 in Xi'an, a Central City in China".美国流行病学杂志 (2012).