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Wearable sensors for personal monitoring and estimation of inhaled traffic-related air pollution: evaluation of methods

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Title: Wearable sensors for personal monitoring and estimation of inhaled traffic-related air pollution: evaluation of methods
Authors: Dons, E
Laeremans, M
Orjuela, JP
Avila-Palencia, I
Carrasco-Turigas, G
Cole-Hunter, T
Anaya-Boig, E
Standaert, A
De Boever, P
Nawrot, T
Gotschi, T
De Nazelle, A
Nieuwenhuijsen, M
Panis, LI
Item Type: Journal Article
Abstract: Physical activity and ventilation rates have an effect on an individual’s dose and may be important to consider in exposure–response relationships; however, these factors are often ignored in environmental epidemiology studies. The aim of this study was to evaluate methods of estimating the inhaled dose of air pollution and understand variability in the absence of a true gold standard metric. Five types of methods were identified: (1) methods using (physical) activity types, (2) methods based on energy expenditure, METs (metabolic equivalents of task), and oxygen consumption, (3) methods based on heart rate or (4) breathing rate, and (5) methods that combine heart and breathing rate. Methods were compared using a real-life data set of 122 adults who wore devices to track movement, black carbon air pollution, and physiological health markers for 3 weeks in three European cities. Different methods for estimating minute ventilation performed well in relative terms with high correlations among different methods, but in absolute terms, ignoring increased ventilation during day-to-day activities could lead to an underestimation of the daily dose by a factor of 0.08–1.78. There is no single best method, and a multitude of methods are currently being used to approximate the dose. The choice of a suitable method for determining the dose in future studies will depend on both the size and the objectives of the study.
Issue Date: 12-Jan-2017
Date of Acceptance: 12-Jan-2017
URI: http://hdl.handle.net/10044/1/45509
DOI: https://dx.doi.org/10.1021/acs.est.6b05782
ISSN: 0013-936X
Publisher: American Chemical Society
Start Page: 1859
End Page: 1867
Journal / Book Title: Environmental Science and Technology
Volume: 51
Issue: 3
Copyright Statement: © 2017 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science and Technology after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acs.est.6b05782
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: 602624
Keywords: Science & Technology
Life Sciences & Biomedicine
Engineering, Environmental
Environmental Sciences
Environmental Sciences & Ecology
MD Multidisciplinary
Publication Status: Published
Appears in Collections:Centre for Environmental Policy
Faculty of Natural Sciences