The Impact of Route Choice on Active Commuters' Exposure to Air Pollution: A Systematic Review

Show simple item record Rafiepourgatabi, Mehrdad Woodward, Alistair Salmond, Jennifer A Dirks, Kim N 2021-02-18T21:23:40Z 2021-02-18T21:23:40Z
dc.identifier.citation Frontiers in Sustainable Cities 2:565733 01 Jan 2020
dc.description.abstract <jats:p>As air pollution varies significantly in both space and time, commuter exposure may differ considerably depending on the route taken between home to work. This is especially the case for active mode commuters who often have a wider range of route choices available to them compared with those traveling by private motor vehicle or by public transport. The aim of this study was to investigate the effect of route choice on air pollution exposure among active commuters, and to estimate, based on modeling, the health benefits able to be achieved from air pollution exposure reductions, modeled across a population, through route optimization. We searched for studies that used portable personal air pollution monitoring equipment during active mode commuting, and reported measurements of air quality on at least two routes, either as a journey to work or to school. The World Health Organization (WHO) model AirQ+ was then exploited to estimate the premature deaths attributable to air pollution according to route choice. Ten publications were identified that met the inclusion criteria. Ultrafine particle counts (UFP), black carbon (BC), and carbon monoxide (CO) were the most commonly measured pollutants in the studies identified. The exposures associated with “high exposure” and “low exposure” routes (categorized based on differences in traffic counts on the roads along the commute route or walking on opposite sides of the road with different levels of traffic traveling in each direction) were found to vary on average by 30 ± 8%, 42 ± 35%, and 55 ± 17% for BC, CO and UFP, respectively. On the basis of modeling, and on the estimated exposures to BC, up to 36 out of 10,000 deaths could be prevented by choosing a low exposure route compared with a high exposure route during active commuting. The results of this study may be useful for both individuals in their commute planning, and also for urban transport planners as impetus for investing in infrastructure to support healthy active mode commuting.</jats:p>
dc.publisher Frontiers Media SA
dc.relation.ispartofseries Frontiers in Sustainable Cities
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.title The Impact of Route Choice on Active Commuters' Exposure to Air Pollution: A Systematic Review
dc.type Journal Article
dc.identifier.doi 10.3389/frsc.2020.565733
pubs.volume 2 2021-01-28T19:17:23Z
dc.rights.holder Copyright: The authors en
pubs.publication-status Published online
dc.rights.accessrights en
pubs.elements-id 836573
dc.identifier.eissn 2624-9634 2021-1-28

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