The joint effect of long-term exposure to multiple air pollutants on non-accidental and cause-specific mortality: A longitudinal cohort study,Journal of Hazardous Materials

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The joint effect of long-term exposure to multiple air pollutants on non-accidental and cause-specific mortality: A longitudinal cohort study
Journal of Hazardous Materials ( IF 13.6 ) Pub Date : 2024-05-03 , DOI: 10.1016/j.jhazmat.2024.134507
Xianglin Wei , Kin Fai Ho , Tsung Yu , Changqing Lin , Ly-yun Chang , Dezhong Chen , Tony Tam , Bo Huang , Alexis K.H. Lau , Xiang Qian Lao

The long-term joint impacts of fine particulate matter (PM), nitrogen dioxide (NO), and ozone (O) on mortality are inconclusive. To bridge this research gap, we included 283,568 adults from the Taiwan MJ cohort between 2005 and 2016 and linked with the mortality data until 31 May 2019. Participants’ annual average exposures to PM, NO, and O were estimated using satellite-based spatial-temporal models. We applied elastic net-regularised Cox models to construct a weighted environmental risk score (WERS) for the joint effects of three pollutants on non-accidental, cardiovascular, and cancer mortality and evaluated the contribution of each pollutant. The three pollutants jointly raised non-accidental mortality risk with a WERS hazard ratio (HR) of 1.186 (95% CI: 1.118–1.259) per standard deviation increase in each pollutant and weights of 72.8%, 15.2%, and 12.0% for PM, NO, and O, respectively. The WERS increased cardiovascular death risk [HR: 1.248 (1.042–1.496)], with PM as the first contributor and O as the second. The WERS also elevated the cancer death risk [HR: 1.173 (1.083–1.270)], where PM played the dominant role and NO ranked second. Coordinated control of these three pollutants can optimise the health benefits of air quality improvements.

更新日期：2024-05-03

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