当前位置： SCI文献检索 > ENVIRONMENTAL HEALTH PERSPECTIVES期刊下所有文献 > Ozone and daily mortality in Shanghai, China.

Ozone and daily mortality in Shanghai, China.

Abstract：

BACKGROUND:Controversy remains regarding the relationship between ambient ozone and mortality worldwide. In mainland China, the largest developing country, there has been no prior study investigating the acute effect of O3 on death risk. Given the changes in types of air pollution from conventional coal combustion to the mixed coal combustion/motor vehicle emissions in China's large cities, it is worthwhile to investigate the acute effect of O3 on mortality outcomes in the country. OBJECTIVES:We conducted a time-series study to investigate the relation between O3 and daily mortality in Shanghai using 4 years of daily data (2001-2004). METHODS:We used the generalized additive model with penalized splines to analyze mortality, O3 pollution, and covariate data in warm and cold seasons. We considered daily counts of all-cause mortality and several cause-specific subcategories (respiratory and cardiovascular). We also examined these associations among several subpopulations based on age and sex. RESULTS:O3 was significantly associated with total and cardiovascular mortality in the cold season but not in the warm season. In the whole-year analysis, an increase of 10 microg/m3 of 2-day average (lag01) O3 corresponds to 0.45% [95% confidence interval (CI) , 0.16-0.73%], 0.53% (95% CI, 0.10-0.96%), and 0.35% (95% CI, -0.40 to 1.09%) increase of total nonaccidental, cardiovascular, and respiratory mortality, respectively. In the cold season, the estimates increased to 1.38% (95% CI, 0.68-2.07%), 1.53% (95% CI, 0.54-2.52%), and 0.95% (95% CI, -0.71 to 2.60%), respectively. In the warm season, we did not observe significant associations for both total and cause-specific mortality. The results were generally insensitive to model specifications such as lag structure of O3 concentrations and degree of freedom for time trend. Multipollutant models indicate that the effect of O3 was not confounded by particulate matter

journal_name

Environ Health Perspect

journal_title

Environmental health perspectives

authors

Zhang Y,Huang W,London SJ,Song G,Chen G,Jiang L,Zhao N,Chen B,Kan H

doi

10.1289/ehp.9014

subject

Has Abstract

pub_date

2006-08-01 00:00:00

pages

1227-32

issue

eissn

0091-6765

issn

1552-9924

journal_volume

114

pub_type

杂志文章

在线工具

Ozone and daily mortality in Shanghai, China.