Joint Effects of Long-Term Exposure to Ambient Fine Particulate Matter and Ozone on Asthmatic Symptoms: Prospective Cohort Study.

ABSTRACT:

Background

The associations of long-term exposure to air pollutants in the presence of asthmatic symptoms remain inconclusive and the joint effects of air pollutants as a mixture are unclear.

Objective

We aimed to investigate the individual and joint associations of long-term exposure to ambient fine particulate matter (PM_2.5) and daily 8-hour maximum ozone concentrations (MDA8 O₃) in the presence of asthmatic symptoms in Chinese adults.

Methods

Data were derived from the World Health Organization Study on Global Ageing and Adult Health (WHO SAGE) cohort study among adults aged 50 years or older, which was implemented in 1 municipality and 7 provinces across China during 2007-2018. Annual average MDA8 O₃ and PM_2.5 at individ

SUBMITTER: Xu J 

PROVIDER: S-EPMC10436124 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature