Evaluating the efficacy of targeted traffic management interventions: A novel methodology for determining the composition of particulate matter in urban air pollution hotspots.

Autor: Patel H; School of Environment, Faculty of Science, University of Auckland, Private Bag 92019, Auckland, New Zealand; Mote Limited, 40a George Street, Mount Eden, Auckland, New Zealand. Electronic address: hamesh.patel@auckland.ac.nz., Davy P; The Institute of Geological and Nuclear Sciences, 30 Gracefield Road, Lower Hutt, New Zealand., Tollemache C; Mote Limited, 40a George Street, Mount Eden, Auckland, New Zealand; School of Chemical Sciences, Faculty of Science, University of Auckland, Private Bag 92019, Auckland, New Zealand., Talbot N; Environment Southland, Cnr North Rd &, Price Street, Waikiwi, Invercargill, New Zealand., Salmond J; School of Environment, Faculty of Science, University of Auckland, Private Bag 92019, Auckland, New Zealand., Williams DE; Mote Limited, 40a George Street, Mount Eden, Auckland, New Zealand; School of Chemical Sciences, Faculty of Science, University of Auckland, Private Bag 92019, Auckland, New Zealand.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2024 Nov 15; Vol. 951, pp. 175414. Date of Electronic Publication: 2024 Aug 08.
DOI: 10.1016/j.scitotenv.2024.175414
Abstrakt: Worldwide, there is an increasing uptake of traffic management interventions aimed at reducing the impact of traffic related air pollution on public health. However, the evidence base linking the proposed changes with the resulting improvements in air quality is lacking. In this paper we present data from a micro-network of low-cost PM 10 samplers collected from an isolated urban centre (Auckland, New Zealand). The data was then analysed using a new combination of analytical methods aimed to identify the composition and hence, the source of pollution. Whilst across the three sites mass concentration of PM 10 and black carbon were similar, Raman spectroscopy successfully identified variations in the soot composition at different sites, enabling some particulate matter to be linked to diesel vehicle emissions. A mass reconstruction approach proved useful in determining that the airshed is well-mixed and also highlighted the impacts of urban design on recorded concentrations. The results show that networks of low-cost sensors, combined with the range of analytical techniques used here can help policymakers test the efficacy of interventions and management strategies designed to combat the burden of air pollution on public health.
Competing Interests: Declaration of competing interest Hamesh Patel, David Williams and Cherie Tollemache are either employed by Mote Limited or shareholders in Mote Limited. The other authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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