Journal
ENVIRONMENTAL POLLUTION
Volume 204, Issue -, Pages 99-108Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2015.04.013
Keywords
Trees; Vegetation; CEO; Street canyon; Urban air quality; Car parking; Exposure
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This study investigates the passive-control-potentials of trees and on-street parked cars on pedestrian exposure to air pollutants in a street canyon using three-dimensional CFD. Since, according to some studies trees deteriorate air quality and cars parked roadside improve it, the combine as well as separate effects of trees and on-street parked cars have been examined. For this, different tree canopy layouts and parking configurations have been developed and pedestrian exposure for each has been analysed. The results showed, for example, tree crown with high porosity and low-stand density in combination with parallel or perpendicular car parking reduced the pedestrian exposure considerably. (C) 2015 Elsevier Ltd. All rights reserved.
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