Repeating cardiopulmonary health effects in rural North Carolina population during a second large peat wildfire

Environmental Health

Research

Melissa A. Tinling¹  J. Jason West²  Vasu Kilaru³  Wayne E. Cascio⁴  Ana G. Rappold⁴ 

[1] Department of Horticulture, North Carolina State University, 27695, Raleigh, NC, USA;Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA;United States Environmental Protection Agency/National Exposure Research Laboratory/Environmental Sciences Division, Research Triangle Park, Durham, NC, USA;United States Environmental Protection Agency/National Health and Environmental Effects Research Laboratory/Environmental Public Health Division, 109 T.W. Alexander Drive, US EPA, Research Triangle Park, 27707, Durham, NC, USA;

关键词: Wildfire smoke;    Respiratory effects;    Cardiovascular effects;    Hypertension;    Peat fire;   

DOI  :  10.1186/s12940-016-0093-4

 received in 2015-08-26, accepted in 2016-01-10,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundCardiovascular health effects of fine particulate matter (PM2.5) exposure from wildfire smoke are neither definitive nor consistent with PM2.5 from other air pollution sources. Non-comparability among wildfire health studies limits research conclusions.MethodsWe examined cardiovascular and respiratory health outcomes related to peat wildfire smoke exposure in a population where strong associations were previously reported for the 2008 Evans Road peat wildfire. We conducted a population-based epidemiologic investigation of associations between daily county-level modeled wildfire PM2.5 and cardiopulmonary emergency department (ED) visits during the 2011 Pains Bay wildfire in eastern North Carolina. We estimated changes in the relative risk cumulative over 0–2 lagged days of wildfire PM2.5 exposure using a quasi-Poisson regression model adjusted for weather, weekends, and poverty.ResultsRelative risk associated with a 10 μg/m3 increase in 24-h PM2.5 was significantly elevated in adults for respiratory/other chest symptoms 1.06 (1.00–1.13), upper respiratory infections 1.13 (1.05–1.22), hypertension 1.05 (1.00–1.09) and ‘all-cause’ cardiac outcomes 1.06 (1.00–1.13) and in youth for respiratory/other chest symptoms 1.18 (1.06–1.33), upper respiratory infections 1.14 (1.04–1.24) and ‘all-cause’ respiratory conditions 1.09 (1.01–1.17).ConclusionsOur results replicate evidence for increased risk of cardiovascular outcomes from wildfire PM2.5 and suggest that cardiovascular health should be considered when evaluating the public health burden of wildfire smoke.

【 授权许可】

CC BY   
© Tinling et al. 2016