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Cardiopulmonary Effects of Fine Particulate Matter Exposure among Older Adults, during Wildfire and Non-Wildfire Periods, in the United States 2008–2010
- Source :
- Environmental Health Perspectives
- Publication Year :
- 2019
- Publisher :
- Environmental Health Perspectives, 2019.
-
Abstract
- The effects of exposure to fine particulate matter ([Formula: see text]) during wildland fires are not well understood in comparison with [Formula: see text] exposures from other sources.We examined the cardiopulmonary effects of short-term exposure to [Formula: see text] on smoke days in the United States to evaluate whether health effects are consistent with those during non-smoke days.We examined cardiopulmonary hospitalizations among adults [Formula: see text] y of age, in U.S. counties ([Formula: see text]) within [Formula: see text] of 123 large wildfires during 2008-2010. We evaluated associations during smoke and non-smoke days and examined variability with respect to modeled and observed exposure metrics. Poisson regression was used to estimate county-specific effects at lag days 0-6 (L0-6), adjusted for day of week, temperature, humidity, and seasonal trend. We used meta-analyses to combine county-specific effects and estimate overall percentage differences in hospitalizations expressed per [Formula: see text] increase in [Formula: see text].Exposure to [Formula: see text], on all days and locations, was associated with increased hospitalizations on smoke and non-smoke days using modeled exposure metrics. The estimated effects persisted across multiple lags, with a percentage increase of 1.08% [95% confidence interval (CI): 0.28, 1.89] on smoke days and 0.67% (95% CI: [Formula: see text], 1.44) on non-smoke days for respiratory and 0.61% (95% CI: 0.09, 1.14) on smoke days and 0.69% (95% CI: 0.19, 1.2) on non-smoke days for cardiovascular outcomes on L1. For asthma-related hospitalizations, the percentage increase was greater on smoke days [6.9% (95% CI: 3.71, 10.11)] than non-smoke days [1.34% (95% CI: [Formula: see text], 3.77)] on L1.The increased risk of [Formula: see text]-related cardiopulmonary hospitalizations was similar on smoke and non-smoke days across multiple lags and exposure metrics, whereas risk for asthma-related hospitalizations was higher during smoke days. https://doi.org/10.1289/EHP3860.
- Subjects :
- Aged, 80 and over
Air Pollutants
Fine particulate
Research
Health, Toxicology and Mutagenesis
Respiratory Tract Diseases
Public Health, Environmental and Occupational Health
Environmental Exposure
010501 environmental sciences
complex mixtures
01 natural sciences
United States
Wildfires
Hospitalization
03 medical and health sciences
0302 clinical medicine
Cardiovascular Diseases
Smoke
Environmental health
Humans
Environmental science
Particulate Matter
030212 general & internal medicine
Aged
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 15529924, 00916765, and 20082010
- Volume :
- 127
- Database :
- OpenAIRE
- Journal :
- Environmental Health Perspectives
- Accession number :
- edsair.doi.dedup.....ed5bcb629218b7bbc5c5aa0afa4c311b