Using five exposure metrics to explore the association between ambient PM_2.5 and the hospital admissions for COPD in Tianshui city, China.

ABSTRACT: Numerous studies have identified air pollutant as a primary risk factor for chronic obstructive pulmonary disease (COPD), particularly for fine particulate matter (PM_2.5). However, the daily average levels of PM_2.5 may not accurately reflect the actual exposure level due to the fluctuating air pollutant levels throughout the day and different human activity patterns. Few studies have comparatively analyzed the association between different exposure metrics of PM_2.5 and COPD hospitalization. We aimed to explore the association between PM_2.5 and COPD admission in Tianshui city using five different exposure metrics (a) Daily mean concentration (DailyPM_2.5mean), (b) Daily hourly peak concentration (DailyPM_2.5max), (c) Daily morn

SUBMITTER: Li D 

PROVIDER: S-EPMC12317981 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature