Effect of a solar lighting intervention on fuel-based lighting use and exposure to household air pollution in rural Uganda: A randomized controlled trial.

Autor: Wallach ES; Schatz Energy Research Center, California State Polytechnic University, Humboldt, Arcata, California, USA., Lam NL; Schatz Energy Research Center, California State Polytechnic University, Humboldt, Arcata, California, USA., Nuwagira E; Mbarara University of Science and Technology, Mbarara, Uganda., Muyanja D; Mbarara University of Science and Technology, Mbarara, Uganda., Tayebwa M; Mbarara University of Science and Technology, Mbarara, Uganda., Valeri L; Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York, USA., Tsai AC; Center for Global Health and Mongan Institute, Massachusetts General Hospital, Boston, Massachusetts, USA.; Harvard Medical School, Boston, Massachusetts, USA., Vallarino J; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA., Allen JG; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA., Lai PS; Harvard Medical School, Boston, Massachusetts, USA.; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.; Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
Jazyk: angličtina
Zdroj: Indoor air [Indoor Air] 2022 Feb; Vol. 32 (2), pp. e12986.
DOI: 10.1111/ina.12986
Abstrakt: Solar lighting is an alternative to polluting kerosene and other fuel-based lighting devices relied upon by millions of families in resource-limited settings. Whether solar lighting provides sustained displacement of fuel-based lighting sources and reductions in personal exposure to fine particulate matter (PM 2 . 5 ) and black carbon (BC) has not been examined in randomized controlled trials. Eighty adult women living in rural Uganda who utilized fuel-based (candles and kerosene lamps) and/or clean (solar, grid, and battery-powered devices) lighting were randomized in a 1:1 ratio to receive a home solar lighting system at no cost to study participants (ClinicalTrials.gov NCT03351504). Among intervention group participants, kerosene lamps were completely displaced in 92% of households using them. The intervention led to an average exposure reduction of 36.1 μg/m 3 (95% CI -70.3 to -2.0) in PM 2 . 5 and 10.8 μg/m 3 (95% CI -17.6 to -4.1) in BC, corresponding to a reduction from baseline of 37% and 91%, respectively. Reductions were greatest among participants using kerosene lamps. Displacement of kerosene lamps and personal exposure reductions were sustained over 12 months of follow-up. Solar lighting presents an immediate opportunity for achieving sustained reductions in personal exposure to PM 2.5 and BC and should be considered in household air pollution intervention packages.
(© 2022 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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