Air pollution in a microclimate; the impact of different green barriers on the dispersion

Taleghani, M ORCID: https://orcid.org/0000-0002-1342-4932, Clark, AP, Swan, C ORCID: https://orcid.org/0000-0001-8780-6557 and Mohegh, A 2019, 'Air pollution in a microclimate; the impact of different green barriers on the dispersion' , Science of the Total Environment . (In Press)

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Abstract

This paper studies the impact of different green barriers on the dispersion of air pollution in a neighbourhood. The study was performed with reference to air quality conditions in Manchester, UK. Manchester experiences a high level of NO2. Measured results showed that the average annual concentration level in 2018 was very close to the limit defined by European Union legislation. Maximum and minimum NO2 concentrations occurred during the winter and summer, respectively. Simulations of the dispersion of air pollution in a hypothetical neighbourhood showed that NO2 level was decreased by the increase of air temperature during the simulated day. In four perturbation scenarios, hedges and trees with different heights were added to the neighbourhood as green barriers. Hedges increased the pollution level near the street at the pedestrian level as a result of the reduced wind speed. The simulations demonstrated that using the trees facilitated the dispersion of pollution

Item Type: Article
Schools: Schools > School of the Built Environment > Centre for Urban Processes, Resilient Infrastructures & Sustainable Environments
Schools > School of Environment and Life Sciences > Ecosystems and Environment Research Centre
Journal or Publication Title: Science of the Total Environment
Publisher: Elsevier
ISSN: 0048-9697
Depositing User: M Taleghani
Date Deposited: 06 Nov 2019 12:21
Last Modified: 06 Nov 2019 12:30
URI: http://usir.salford.ac.uk/id/eprint/52942

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