Journal article
Household Air Pollution Concentrations after Liquefied Petroleum Gas Interventions in Rural Peru: Findings from a One-Year Randomized Controlled Trial Followed by a One-Year Pragmatic Crossover Trial
Environmental health perspectives, v 130(5), pp 57007-57007
01 May 2022
PMID: 35549716
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Household air pollution (HAP) from biomass fuel combustion remains a leading environmental risk factor for morbidity worldwide.
Measure the effect of liquefied petroleum gas (LPG) interventions on HAP exposures in Puno, Peru.
We conducted a 1-y randomized controlled trial followed by a 1-y pragmatic crossover trial in 180 women age 25-64 y. During the first year, intervention participants received a free LPG stove, continuous fuel delivery, and regular behavioral messaging, whereas controls continued their biomass cooking practices. During the second year, control participants received a free LPG stove, regular behavioral messaging, and vouchers to obtain LPG tanks from a nearby distributor, whereas fuel distribution stopped for intervention participants. We collected 48-h kitchen area concentrations and personal exposures to fine particulate matter (PM) with aerodynamic diameter
(
), black carbon (BC), and carbon monoxide (CO) at baseline and 3-, 6-, 12-, 18-, and 24-months post randomization.
Baseline
(kitchen area concentrations
vs.
; personal exposure
vs.
), CO (kitchen
vs.
; personal
vs.
), and BC (kitchen
vs.
; personal
vs.
) were similar between control and intervention participants. Intervention participants had consistently lower
concentrations at the 12-month visit for kitchen (
,
, and
) and personal exposures (
,
, and
) to
, BC, and CO when compared to controls during the first year. In the second year, we observed comparable HAP reductions among controls after the voucher-based intervention for LPG fuel was implemented (24-month visit
, BC, and CO kitchen mean concentrations of
,
, and
and personal exposures of
,
, and
, respectively), and average reductions were present among intervention participants even after free fuel distribution stopped (24-month visit
, BC, and CO kitchen mean concentrations of
,
, and
and personal exposures of
,
, and
, respectively).
Both home delivery and voucher-based provision of free LPG over a 1-y period, in combination with provision of a free LPG stove and longitudinal behavioral messaging, reduced HAP to levels below 24-h World Health Organization air quality guidelines. Moreover, the effects of the intervention on HAP persisted for a year after fuel delivery stopped. Such strategies could be applied in LPG programs to reduce HAP and potentially improve health. https://doi.org/10.1289/EHP10054.
Metrics
Details
- Title
- Household Air Pollution Concentrations after Liquefied Petroleum Gas Interventions in Rural Peru: Findings from a One-Year Randomized Controlled Trial Followed by a One-Year Pragmatic Crossover Trial
- Creators
- Magdalena Fandiño-Del-Rio - Johns Hopkins UniversityJosiah L Kephart - Johns Hopkins UniversityKendra N Williams - Johns Hopkins UniversityTimothy Shade - Johns Hopkins UniversityTemi Adekunle - Johns Hopkins UniversityKyle Steenland - Emory UniversityLuke P Naeher - University of GeorgiaLawrence H Moulton - Johns Hopkins UniversityGustavo F Gonzales - Universidad Peruana Cayetano HerediaMarilu Chiang - PrismaShakir Hossen - Johns Hopkins UniversityRyan T Chartier - RTI InternationalKirsten Koehler - Johns Hopkins UniversityWilliam Checkley - Johns Hopkins UniversityCardiopulmonary outcomes and Household Air Pollution (CHAP) Trial Investigators
- Publication Details
- Environmental health perspectives, v 130(5), pp 57007-57007
- Grant note
- U01 TW010107 / FIC NIH HHS T32 HL007534 / NHLBI NIH HHS U2R TW010114 / FIC NIH HHS D43 TW009340 / FIC NIH HHS T32 ES007141 / NIEHS NIH HHS
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Urban Health Collaborative
- Web of Science ID
- WOS:000811297100003
- Scopus ID
- 2-s2.0-85130638790
- Other Identifier
- 991021862270604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Environmental Sciences
- Public, Environmental & Occupational Health
- Toxicology