Socioeconomic influence on air pollution exposure whilst walking to school

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dc.contributor.advisor Salmond, J en
dc.contributor.advisor Dirks, K en Lehn, Rita en 2018-04-10T02:50:22Z en 2017 en
dc.identifier.uri en
dc.description Full text is available to authenticated members of The University of Auckland only. en
dc.description.abstract Exposure to traffic-related air pollution has been linked to a variety of adverse human health effects, with increased risks found among those young in age and those living in lower socioeconomic conditions. This study compares exposure to air pollution experienced by children during their walking commute to school in contrasting areas of socioeconomic status based on school decile in the urban area of Auckland, New Zealand. Four schools were selected for this study, two from a low decile (LD) area and two from a high decile (HD) area. One of each school (HD and LD) is located in the area of South Auckland (SA) and the North Shore (NS). The traffic-related air pollutants carbon monoxide (CO) and ultrafine particles (UFP) were measured while walking to school using mobile data collection equipment during simulated morning school commutes from May to June 2017. Estimates of the average vehicle fleet composition and traffic flows were made based on identification of the vehicles traveling along the walking school routes. Vehicle information associated with licence plates (make, age and engine type) was extracted using an associated database. The results show no clear correlation between socioeconomic status and air pollution exposure. The highest exposure during the school commute was observed at the SA LD site, followed by the NS HD site. The average age of vehicles was found to be higher than in other developed countries, with the LD sites recording the oldest fleet. It was further found that traffic and urban conditions influence commuting exposure, with the presence of traffic lights, the proportion of heavy vehicles, and the extent of stop-start vehicle movement considerably increasing the short-term exposure of pollutants to those walking alongside roads exhibiting these characteristics. This suggests that reducing the average car age and enhancing traffic flow during morning rush hours could be effective tools for minimising the air pollution exposure experienced by commuters and reduce the risk of spikes in UFP concentrations to which pedestrians are most at risk. This could be achieved by limiting the use of private transport for the school commute and encouraging active commute options. en
dc.publisher ResearchSpace@Auckland en
dc.relation.ispartof Masters Thesis - University of Auckland en
dc.relation.isreferencedby UoA99265067313802091 en
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. en
dc.rights Restricted Item. Available to authenticated members of The University of Auckland. en
dc.rights.uri en
dc.rights.uri en
dc.title Socioeconomic influence on air pollution exposure whilst walking to school en
dc.type Thesis en Environmental Science en The University of Auckland en Masters en
dc.rights.holder Copyright: The author en
pubs.elements-id 735799 en
pubs.record-created-at-source-date 2018-04-10 en

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