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

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Liao, Jiawen ORCID: 0000-0001-8246-0542, McCracken, John P, Piedrahita, Ricardo, Thompson, Lisa ORCID: 0000-0002-8001-2057, Mollinedo, Erick, Canuz, Eduardo, De Léon, Oscar, Díaz-Artiga, Anaité, Johnson, Michael ORCID: 0000-0002-4886-1534, Clark, Maggie et al (show 8 more authors) , Pillarisetti, Ajay, Kearns, Katherine ORCID: 0000-0002-1201-8529, Naeher, Luke, Steenland, Kyle, Checkley, William ORCID: 0000-0003-1106-8812, Peel, Jennifer, Clasen, Thomas F and HAPIN investigators, (2020) The use of bluetooth low energy Beacon systems to estimate indirect personal exposure to household air pollution. Journal of exposure science & environmental epidemiology, 30 (6). pp. 990-1000.

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Abstract

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/m³). Indirect exposure had better agreement with direct exposure measurements (bias: -17 µg/m³) than did kitchen area measurements (bias: -89 µg/m³). Our findings demonstrate that indirect exposure reconstruction is a feasible approach to estimate personal exposure when direct assessment is not possible.

Item Type:	Article
Uncontrolled Keywords:	HAPIN investigators, Humans, Air Pollutants, Pilot Projects, Air Pollution, Air Pollution, Indoor, Environmental Monitoring, Child, Rural Population, Female, Particulate Matter, Cooking
Depositing User:	Symplectic Admin
Date Deposited:	02 Dec 2019 13:49
Last Modified:	19 Jan 2023 00:17
DOI:	10.1038/s41370-019-0172-z
Open Access URL:	https://doi.org/10.1038/s41370-019-0172-z
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3064443