Exposure Contrasts of Women Aged 40–79 Years during the Household Air Pollution Intervention Network Randomized Controlled Trial

Exposure to household air pollution has been linked to adverse health outcomes among women aged 40-79. Little is known about how shifting from biomass cooking to a cleaner fuel like liquefied petroleum gas (LPG) could impact exposures for this population. We report 24-h exposures to particulate matter (PM<sub>2.5</sub>), black carbon (BC), and carbon monoxide (CO) among women aged 40 to <80 years participating in the Household Air Pollution Intervention Network trial. 209 participants were randomized to the intervention and received an LPG stove and continuous fuel supply; controls used biomass (<i>n</i> = 209). Exposures were measured up to six times; we used mixed-effects models to estimate differences between intervention and control groups. Preintervention exposures between groups were comparable; median postintervention exposures were 62% (76.3 vs 29.3 μg/m<sup>3</sup>), 73% (10.4 vs 2.8 μg/m<sup>3</sup>), and 57% (1.4 vs 0.6 ppm) lower for PM<sub>2.5</sub>, BC, and CO among LPG users than for controls. Reductions were similar across countries; 70% of PM<sub>2.5</sub> exposures after intervention were below the annual WHO interim target I (IT-1) value of 35 μg/m<sup>3</sup>. We provide evidence that implementing an LPG intervention can reduce air pollution exposure over an 18-month period to at or below the annual WHO IT-1 guideline.

Authors

Institutions

Publication Details

Journal
Environmental Science & Technology
Published
2024-12-30
DOI
https://doi.org/10.1021/acs.est.4c06337
Citations
4
Primary Topic
Energy and Environment Impacts
Type
article
Field-Weighted Citation Impact
0.53

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Exposure Contrasts of Women Aged 40–79 Years during the Household Air Pollution Intervention Network Randomized Controlled Trial

Howard H. Chang, Joshua P. Rosenthal, Florien Ndagijimana, Maggie L. Clark et al.
4 citations
Environmental Science & Technology
Energy and Environment Impacts
0.53
article

Exposure Contrasts of Women Aged 40–79 Years during the Household Air Pollution Intervention Network Randomized Controlled Trial

Howard H. Chang, Joshua P. Rosenthal, Florien Ndagijimana, Maggie L. Clark, Kalpana Balakrishnan, Ephrem Dusabimana, Wenlu Ye, Ajay Pillarisetti, Kendra N. Williams, William Checkley, Anaité Díaz-Artiga, Thomas Clasen, Kyle Steenland, Laura Nicolaou, Ghislaine Rosa, John P. McCracken, Michael L. Johnson, Krishnendu Mukhopadhyay, Jacob Kremer, Miles A. Kirby, Sankar Sambandam, Lisa M. Thompson, Ricardo Piedrahita, Jennifer L. Peel, Lindsay J. Underhill, Lance Allyn Waller, Jiantong Wang, Devan Campbell, Marilú Chiang, Stella M. Hartinger, Katherine Kearns, Luke P. Naeher, Ahana Ghosh
article en
4 citations

Abstract

Exposure to household air pollution has been linked to adverse health outcomes among women aged 40-79. Little is known about how shifting from biomass cooking to a cleaner fuel like liquefied petroleum gas (LPG) could impact exposures for this population. We report 24-h exposures to particulate matter (PM<sub>2.5</sub>), black carbon (BC), and carbon monoxide (CO) among women aged 40 to <80 years participating in the Household Air Pollution Intervention Network trial. 209 participants were randomized to the intervention and received an LPG stove and continuous fuel supply; controls used biomass (<i>n</i> = 209). Exposures were measured up to six times; we used mixed-effects models to estimate differences between intervention and control groups. Preintervention exposures between groups were comparable; median postintervention exposures were 62% (76.3 vs 29.3 μg/m<sup>3</sup>), 73% (10.4 vs 2.8 μg/m<sup>3</sup>), and 57% (1.4 vs 0.6 ppm) lower for PM<sub>2.5</sub>, BC, and CO among LPG users than for controls. Reductions were similar across countries; 70% of PM<sub>2.5</sub> exposures after intervention were below the annual WHO interim target I (IT-1) value of 35 μg/m<sup>3</sup>. We provide evidence that implementing an LPG intervention can reduce air pollution exposure over an 18-month period to at or below the annual WHO IT-1 guideline.

Environmental Science & TechnologyVol. 59(1)
National Institutes of Health (US), Harvard University (US), Johns Hopkins University (US), University of Liverpool (GB), Emory University (US), University of Georgia (US), Universidad Peruana Cayetano Heredia (PE), Sri Ramachandra Institute of Higher Education and Research (IN), Washington University in St. Louis (US), Berkeley Air Monitoring Group (United States) (US), Prisma (PE), Harvard Global Health Institute (US), Fogarty International Center (US), Universidad del Valle de Guatemala (GT), Colorado State University (US), University of California, Berkeley (US)
Bill and Melinda Gates Foundation, Emory University, Johns Hopkins University, National Institutes of Health, UC Berkeley College of Chemistry, National Heart, Lung, and Blood Institute, Fogarty International Center
Openalex Percentile: Top 41%
Energy and Environment Impacts
0.53
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.