Acute changes in lung function following controlled exposure to cookstove air pollution in the subclinical tests of volunteers exposed to smoke (STOVES) study
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Background: Exposure to household air pollution generated as a result of cooking and heating is a leading contributor to global disease. The effects of cookstove-generated air pollution on adult lung function, however, remain uncertain. Objectives: We investigated acute responses in lung function following controlled exposures to cookstove-generated air pollution. Methods: We recruited 48 healthy adult volunteers to undergo six two-hour treatments: a filtered-air control and emissions from five different stoves with fine particulate matter (PM2.5) targets from 10 to 500 µg/m3. Spirometry was conducted prior to exposure and immediately, and three and 24 h post-exposure. Mixed-effect models were used to estimate differences in post-exposure lung function for stove treatments versus control. Results: Immediately post-exposure, lung function was lower compared to the control for the three highest PM2.5-level stoves. The largest differences were for the fan rocket stove (target 250 µg/m3; forced vital capacity (FVC): −60 mL, 95% confidence interval (95% CI) -135, 15; forced expiratory volume (FEV1): −51 mL, 95% CI -117, 16; mid-expiratory flow (FEF25–75): −116 mL/s, 95% CI -239, 8). At 3 h post-exposure, lung function was lower compared to the control for all stove treatments; effects were of similar magnitude for all stoves. At 24 h post-exposure, results were consistent with a null association for FVC and FEV1; FEF25–75 was lower relative to the control for the gasifier, fan rocket, and three stone fire. Conclusions: Patterns suggesting short-term decreases in lung function follow from exposure to cookstove air pollution even for stove exposures with low PM2.5 levels.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Inhalation Toxicology |
Vol/bind | 32 |
Udgave nummer | 3 |
Sider (fra-til) | 115-123 |
Antal sider | 9 |
ISSN | 0895-8378 |
DOI | |
Status | Udgivet - 2020 |
Eksternt udgivet | Ja |
Bibliografisk note
Publisher Copyright:
© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group.
ID: 346133499