Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study

As part of the New Hampshire Birth Cohort Study, children 3 to 5 years of age participated in a personal PM<sub>2.5</sub> exposure study. This paper characterizes the personal PM<sub>2.5</sub> exposure and protocol compliance measured with a wearable sensor. The MicroPEM™ col...

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Autores principales:	Jonathan Thornburg, Yuliya Halchenko, Michelle McCombs, Nalyn Siripanichgon, Erin Dowell, Seung-Hyun Cho, Jennifer Egner, Vicki Sayarath, Margaret R. Karagas
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	particulate matter personal exposure woodstove smoke children Medicine R
Acceso en línea:	https://doaj.org/article/801bafde4ddb4adab22baa2f4d43974b
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spelling	oai:doaj.org-article:801bafde4ddb4adab22baa2f4d43974b2021-11-25T17:51:12ZChildren’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study10.3390/ijerph1822121091660-46011661-7827https://doaj.org/article/801bafde4ddb4adab22baa2f4d43974b2021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/22/12109https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601As part of the New Hampshire Birth Cohort Study, children 3 to 5 years of age participated in a personal PM<sub>2.5</sub> exposure study. This paper characterizes the personal PM<sub>2.5</sub> exposure and protocol compliance measured with a wearable sensor. The MicroPEM™ collected personal continuous and integrated measures of PM<sub>2.5</sub> exposure and compliance data on 272 children. PM<sub>2.5</sub>, black carbon (BC), and brown carbon tobacco smoke (BrC-ETS) exposure was measured from the filters. We performed a multivariate analysis of woodstove presence and other factors that influenced PM<sub>2.5</sub>, BC, and BrC exposures. We collected valid exposure data from 258 of the 272 participants (95%). Children wore the MicroPEM for an average of 46% of the 72-h period, and over 80% for a 2-day, 1-night period (with sleep hours counted as non-compliance for this study). Elevated PM<sub>2.5</sub> exposures occurred in the morning, evening, and overnight. Median PM<sub>2.5</sub>, BC, and BrC-ETS concentrations were 8.1 μg/m<sup>3</sup>, 3.6 μg/m<sup>3</sup>, and 2.4 μg/m<sup>3</sup>. The combined BC and BrC-ETS mass comprised 72% of the PM<sub>2.5</sub>. Woodstove presence, hours used per day, and the primary heating source were associated with the children’s PM<sub>2.5</sub> exposure and air filters were associated with reduced PM<sub>2.5</sub> concentrations. Our findings suggest that woodstove smoke contributed significantly to this cohort’s PM<sub>2.5</sub> exposure. The high sample validity and compliance rate demonstrated that the MicroPEM can be worn by young children in epidemiologic studies to measure their PM<sub>2.5</sub> exposure, inform interventions to reduce the exposures, and improve children’s health.Jonathan ThornburgYuliya HalchenkoMichelle McCombsNalyn SiripanichgonErin DowellSeung-Hyun ChoJennifer EgnerVicki SayarathMargaret R. KaragasMDPI AGarticleparticulate matterpersonal exposurewoodstove smokechildrenMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 12109, p 12109 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	particulate matter personal exposure woodstove smoke children Medicine R
spellingShingle	particulate matter personal exposure woodstove smoke children Medicine R Jonathan Thornburg Yuliya Halchenko Michelle McCombs Nalyn Siripanichgon Erin Dowell Seung-Hyun Cho Jennifer Egner Vicki Sayarath Margaret R. Karagas Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
description	As part of the New Hampshire Birth Cohort Study, children 3 to 5 years of age participated in a personal PM<sub>2.5</sub> exposure study. This paper characterizes the personal PM<sub>2.5</sub> exposure and protocol compliance measured with a wearable sensor. The MicroPEM™ collected personal continuous and integrated measures of PM<sub>2.5</sub> exposure and compliance data on 272 children. PM<sub>2.5</sub>, black carbon (BC), and brown carbon tobacco smoke (BrC-ETS) exposure was measured from the filters. We performed a multivariate analysis of woodstove presence and other factors that influenced PM<sub>2.5</sub>, BC, and BrC exposures. We collected valid exposure data from 258 of the 272 participants (95%). Children wore the MicroPEM for an average of 46% of the 72-h period, and over 80% for a 2-day, 1-night period (with sleep hours counted as non-compliance for this study). Elevated PM<sub>2.5</sub> exposures occurred in the morning, evening, and overnight. Median PM<sub>2.5</sub>, BC, and BrC-ETS concentrations were 8.1 μg/m<sup>3</sup>, 3.6 μg/m<sup>3</sup>, and 2.4 μg/m<sup>3</sup>. The combined BC and BrC-ETS mass comprised 72% of the PM<sub>2.5</sub>. Woodstove presence, hours used per day, and the primary heating source were associated with the children’s PM<sub>2.5</sub> exposure and air filters were associated with reduced PM<sub>2.5</sub> concentrations. Our findings suggest that woodstove smoke contributed significantly to this cohort’s PM<sub>2.5</sub> exposure. The high sample validity and compliance rate demonstrated that the MicroPEM can be worn by young children in epidemiologic studies to measure their PM<sub>2.5</sub> exposure, inform interventions to reduce the exposures, and improve children’s health.
format	article
author	Jonathan Thornburg Yuliya Halchenko Michelle McCombs Nalyn Siripanichgon Erin Dowell Seung-Hyun Cho Jennifer Egner Vicki Sayarath Margaret R. Karagas
author_facet	Jonathan Thornburg Yuliya Halchenko Michelle McCombs Nalyn Siripanichgon Erin Dowell Seung-Hyun Cho Jennifer Egner Vicki Sayarath Margaret R. Karagas
author_sort	Jonathan Thornburg
title	Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
title_short	Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
title_full	Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
title_fullStr	Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
title_full_unstemmed	Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study
title_sort	children’s particulate matter exposure characterization as part of the new hampshire birth cohort study
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/801bafde4ddb4adab22baa2f4d43974b
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Children’s Particulate Matter Exposure Characterization as Part of the New Hampshire Birth Cohort Study

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