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A cross-sectional study of determinants of indoor environmental exposures in households with and without chronic exposure to biomass fuel smoke

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dc.contributor.author Pollard, S.L.
dc.contributor.author Williams, D.L.
dc.contributor.author Breysse, P.N.
dc.contributor.author Baron, P.A.
dc.contributor.author Grajeda, L.M.
dc.contributor.author Gilman, R.H.
dc.contributor.author Jaime Miranda, J.
dc.contributor.author Checkley, W.
dc.date.accessioned 2020-06-10T18:11:31Z
dc.date.available 2020-06-10T18:11:31Z
dc.date.issued 2014
dc.identifier.uri https://hdl.handle.net/20.500.12866/7969
dc.description.abstract Background: Burning biomass fuels indoors for cooking is associated with high concentrations of particulate matter (PM) and carbon monoxide (CO). More efficient biomass-burning stoves and chimneys for ventilation have been proposed as solutions to reduce indoor pollution. We sought to quantify indoor PM and CO exposures in urban and rural households and determine factors associated with higher exposures. A secondary objective was to identify chronic vs. acute changes in cardiopulmonary biomarkers associated with exposure to biomass smoke. Methods: We conducted a census survey followed by a cross-sectional study of indoor environmental exposures and cardiopulmonary biomarkers in the main household cook in Puno, Peru. We measured 24-hour indoor PM and CO concentrations in 86 households. We also measured PM2.5 and PM10 concentrations gravimetrically for 24 hours in urban households and during cook times in rural households, and generated a calibration equation using PM2.5 measurements. Results: In a census of 4903 households, 93% vs. 16% of rural vs. urban households used an open-fire stove; 22% of rural households had a homemade chimney; and <3% of rural households participated in a national program encouraging installation of a chimney. Median 24-hour indoor PM2.5 and CO concentrations were 130 vs. 22 μg/m3 and 5.8 vs. 0.4 ppm (all p<0.001) in rural vs. urban households. Having a chimney did not significantly reduce median concentrations in 24-hour indoor PM2.5 (119 vs. 137 μg/m3; p=0.40) or CO (4.6 vs. 7.2 ppm; p=0.23) among rural households with and without chimneys. Having a chimney did not significantly reduce median cook-Time PM2.5 (360 vs. 298 μg/m3, p=0.45) or cook-Time CO concentrations (15.2 vs. 9.4 ppm, p=0.23). Having a thatched roof (p=0.007) and hours spent cooking (p=0.02) were associated with higher 24-hour average PM concentrations. Rural participants had higher median exhaled CO (10 vs. 6 ppm; p=0.01) and exhaled carboxyhemoglobin (1.6% vs. 1.0%; p=0.04) than urban participants. Conclusions: Indoor air concentrations associated with biomass smoke were six-fold greater in rural vs. urban households. Having a homemade chimney did not reduce environmental exposures significantly. Measures of exhaled CO provide useful cardiopulmonary biomarkers for chronic exposure to biomass smoke. en_US
dc.language.iso eng
dc.publisher BioMed Central
dc.relation.ispartof urn:issn:1476-069X
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject adult en_US
dc.subject Adult en_US
dc.subject air conditioning en_US
dc.subject Air Pollution, Indoor en_US
dc.subject article en_US
dc.subject Article en_US
dc.subject atmospheric pollution en_US
dc.subject biofuel en_US
dc.subject biological marker en_US
dc.subject biomarker en_US
dc.subject Biomarkers en_US
dc.subject biomass en_US
dc.subject Biomass en_US
dc.subject biomass burning en_US
dc.subject Biomass fuel en_US
dc.subject Biomass smoke en_US
dc.subject breath analysis en_US
dc.subject Breath Tests en_US
dc.subject calibration en_US
dc.subject carbon monoxide en_US
dc.subject Carbon Monoxide en_US
dc.subject carboxyhemoglobin en_US
dc.subject cardiovascular disease en_US
dc.subject chimney en_US
dc.subject chronic wasting disease en_US
dc.subject comparative study en_US
dc.subject concentration (composition) en_US
dc.subject cooking en_US
dc.subject Cooking en_US
dc.subject Cookstoves en_US
dc.subject Cross-Sectional Studies en_US
dc.subject cross-sectional study en_US
dc.subject environmental exposure en_US
dc.subject Environmental exposure en_US
dc.subject environmental monitoring en_US
dc.subject Environmental Monitoring en_US
dc.subject exhalation en_US
dc.subject Exhaled carbon monoxide en_US
dc.subject expired air en_US
dc.subject Family Characteristics en_US
dc.subject family size en_US
dc.subject female en_US
dc.subject Female en_US
dc.subject gravimetry en_US
dc.subject heart rate en_US
dc.subject household en_US
dc.subject human en_US
dc.subject Humans en_US
dc.subject indoor air en_US
dc.subject indoor air pollution en_US
dc.subject long term exposure en_US
dc.subject male en_US
dc.subject Male en_US
dc.subject metabolism en_US
dc.subject middle aged en_US
dc.subject Middle Aged en_US
dc.subject nephelometry en_US
dc.subject nitric oxide en_US
dc.subject oxygen saturation en_US
dc.subject particulate matter en_US
dc.subject Particulate Matter en_US
dc.subject Peru en_US
dc.subject pollution exposure en_US
dc.subject priority journal en_US
dc.subject Puno [Peru] en_US
dc.subject rural area en_US
dc.subject rural population en_US
dc.subject Rural Population en_US
dc.subject smoke en_US
dc.subject Smoke en_US
dc.subject urban area en_US
dc.subject urban population en_US
dc.subject Urban Population en_US
dc.subject ventilation en_US
dc.subject Ventilation en_US
dc.title A cross-sectional study of determinants of indoor environmental exposures in households with and without chronic exposure to biomass fuel smoke en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1186/1476-069X-13-21
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.02.00 es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.05


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