The use of bluetooth low energy Beacon systems to estimate indirect personal exposure to household air pollution.

Autor: Liao J; Department of Environmental Health, Emory University, Atlanta, GA, USA. Jiawen.liao@emory.edu., McCracken JP; Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala., Piedrahita R; Berkeley Air Monitoring Group, Berkeley, CA, USA., Thompson L; Department of Environmental Health, Emory University, Atlanta, GA, USA.; Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA., Mollinedo E; Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala., Canuz E; Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala., De Léon O; Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala., Díaz-Artiga A; Centro de Estudios en Salud, Universidad del Valle de Guatemala, Guatemala City, Guatemala., Johnson M; Berkeley Air Monitoring Group, Berkeley, CA, USA., Clark M; Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA., Pillarisetti A; Environmental Health Sciences, School of Public Health, University of California, Berkeley, CA, USA., Kearns K; College of Public Health, University of Georgia, Athens, GA, USA., Naeher L; College of Public Health, University of Georgia, Athens, GA, USA., Steenland K; Department of Environmental Health, Emory University, Atlanta, GA, USA., Checkley W; Division of Pulmonary and Critical Care, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.; Center for Global Non-Communicable Diseases, Johns Hopkins University, Baltimore, MD, USA., Peel J; Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA., Clasen TF; Department of Environmental Health, Emory University, Atlanta, GA, USA.
Jazyk: angličtina
Zdroj: Journal of exposure science & environmental epidemiology [J Expo Sci Environ Epidemiol] 2020 Nov; Vol. 30 (6), pp. 990-1000. Date of Electronic Publication: 2019 Sep 26.
DOI: 10.1038/s41370-019-0172-z
Abstrakt: Household air pollution (HAP) generated from solid fuel combustion is a major health risk. Direct measurement of exposure to HAP is burdensome and challenging, particularly for children. In a pilot study of the Household Air Pollution Intervention Network (HAPIN) trial in rural Guatemala, we evaluated an indirect exposure assessment method that employs fixed continuous PM 2.5 monitors, Bluetooth signal receivers in multiple microenvironments (kitchen, sleeping area and outdoor patio), and a wearable signal emitter to track an individual's time within those microenvironments. Over a four-month period, we measured microenvironmental locations and reconstructed indirect PM 2.5 exposures for women and children during two 24-h periods before and two periods after a liquefied petroleum gas (LPG) stove and fuel intervention delivered to 20 households cooking with woodstoves. Women wore personal PM 2.5 monitors to compare direct with indirect exposure measurements. Indirect exposure measurements had high correlation with direct measurements (n = 62, Spearman ρ = 0.83, PM 2.5 concentration range: 5-528 µg/m 3 ). Indirect exposure had better agreement with direct exposure measurements (bias: -17 µg/m 3 ) than did kitchen area measurements (bias: -89 µg/m 3 ). Our findings demonstrate that indirect exposure reconstruction is a feasible approach to estimate personal exposure when direct assessment is not possible.
Databáze: MEDLINE
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