Format

Send to

Choose Destination
J Expo Sci Environ Epidemiol. 2019 Jun 28. doi: 10.1038/s41370-019-0151-4. [Epub ahead of print]

Residential wood stove use and indoor exposure to PM2.5 and its components in Northern New England.

Author information

1
Pediatric Endocrinology and Diabetes, Maine Medical Center, Portland, ME, USA. afleisch@mmc.org.
2
Center for Outcomes Research and Evaluation, Maine Medical Center Research Institute, Portland, ME, USA. afleisch@mmc.org.
3
Division of Chronic Disease Research across the Lifecourse, Department of Population Medicine, Harvard Pilgrim Health Care Institute, Boston, MA, USA.
4
Pulmonary, Allergy, Sleep, and Critical Care Medicine Section, VA Boston Healthcare System, Boston, MA, USA.
5
Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
6
Research and Development Service, VA Boston Healthcare System, Boston, MA, USA.
7
Department of Geography, Dartmouth College, Hanover, NH, USA.
8
Department of Epidemiology, Geisel School of Medicine at Dartmouth, Hanover, NH, USA.
9
Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
10
Children's Environmental Health and Disease Prevention Research Center at Dartmouth, Hanover, NH, USA.

Abstract

BACKGROUND:

Residential wood stove use has become more prevalent in high-income countries, but only limited data exist on indoor exposure to PM2.5 and its components.

METHODS:

From 2014 to 2016, we collected 7-day indoor air samples in 137 homes of pregnant women in Northern New England, using a micro-environmental monitor. We examined associations of wood stove use with PM2.5 mass and its components [black carbon (BC), organic and elemental carbon and their fractions, and trace elements], adjusted for sampling season, community wood stove use, and indoor activities. We examined impact of stove age, EPA-certification, and wood moisture on indoor pollutants.

RESULTS:

Median (IQR) household PM2.5 was 6.65 (5.02) µg/m3 and BC was 0.23 (0.20) µg/m3. Thirty percent of homes used a wood stove during monitoring. In homes with versus without a stove, PM2.5 was 20.6% higher [although 95% confidence intervals (-10.6, 62.6) included the null] and BC was 61.5% higher (95% CI: 11.6, 133.6). Elemental carbon (total and fractions 3 and 4), potassium, calcium, and chloride were also higher in homes with a stove. Older stoves, non-EPA-certified stoves, and wet or mixed (versus dry) wood were associated with higher pollutant concentrations, especially BC.

CONCLUSIONS:

Homes with wood stoves, particularly those that were older and non-EPA-certified or burning wet wood had higher concentrations of indoor air combustion-related pollutants.

KEYWORDS:

Black carbon; Indoor air pollution; Organic carbon; PM2.5; Trace elements; Wood stove use

PMID:
31253828
DOI:
10.1038/s41370-019-0151-4

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center