Residential radon decay products are associated with cough and phlegm in patients with COPD.

ABSTRACT: Radon decay products attach to particulate matter (referred to as particle radioactivity, PR) has been shown to be potential to promote airway damage after inhalation. In this study, we investigated associations between PR with respiratory symptoms and health-related quality of life (HRQL) in patients with COPD. 141 male patients with COPD, former smokers, completed the St. George's Respiratory Questionnaire (SGRQ) after up to four 1-week seasonal assessments (N=474) of indoor (home) and ambient (central site) particulate matter ≤ 2.5 µm in diameter (PM_2.5) and black carbon (BC). Indoor PR was measured as α-activity (radiation) on PM_2.5 filter samples. The ratio of indoor/ambient sulfur in PM_2.5 (a ventilation surrogate) was used to estimate α-PR from indoo

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12418318 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature