Association of Short-Term Co-Exposure to Particulate Matter and Ozone with Mortality Risk

微粒 置信区间 臭氧 医学 环境卫生 空气污染 人口学 毒理 气象学 地理 内科学 生物 化学 社会学 有机化学
作者
Jianhui Guo,Jinyi Zhou,Renqiang Han,Yaqi Wang,Xinyao Lian,Ziqi Tang,Jin Ye,Xueqiong He,Hao Yu,Shaodan Huang,Jing Li
出处
期刊:Environmental Science & Technology [American Chemical Society]
卷期号:57 (42): 15825-15834 被引量:9
标识
DOI:10.1021/acs.est.3c04056
摘要

A complex regional air pollution problem dominated by particulate matter (PM) and ozone (O3) needs drastic attention since the levels of O3 and PM are not decreasing in many parts of the world. Limited evidence is currently available regarding the association between co-exposure to PM and O3 and mortality. A multicounty time-series study was used to investigate the associations of short-term exposure to PM1, PM2.5, PM10, and O3 with daily mortality from different causes, which was based on data obtained from the Mortality Surveillance System managed by the Jiangsu Province Center for Disease Control and Prevention of China and analyzed via overdispersed generalized additive models with random-effects meta-analysis. We investigated the interactions of PM and O3 on daily mortality and calculated the mortality fractions attributable to PM and O3. Our results showed that PM1 is more strongly associated with daily mortality than PM2.5, PM10, and O3, and percent increases in daily all-cause nonaccidental, cardiovascular, and respiratory mortality were 1.37% (95% confidence interval (CI), 1.22–1.52%), 1.44% (95% CI, 1.25–1.63%), and 1.63% (95% CI, 1.25–2.01%), respectively, for a 10 μg/m3 increase in the 2 day average PM1 concentration. We found multiplicative and additive interactions of short-term co-exposure to PM and O3 on daily mortality. The risk of mortality was greatest among those with higher levels of exposure to both PM (especially PM1) and O3. Moreover, excess total and cardiovascular mortality due to PM1 exposure is highest in populations with higher O3 exposure levels. Our results highlight the importance of the collaborative governance of PM and O3, providing a scientific foundation for pertinent standards and regulatory interventions.
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