Title: Application of urban street canyon models for predicting vehicular pollution in an urban area in Dublin, Ireland

Authors: Rajiv Ganguly, Brian M. Broderick

Addresses: Environmental Research Group (ERG), Kings College London, Franklin Wilkins Building, 150 Stamford Street, London SE1 9NH, UK. ' Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin-2, Ireland

Abstract: The relative performance of two atmospheric dispersion models STREET and OSPM is assessed using measured CO and NOx data obtained adjacent to an urban street canyon. This paper in particular, evaluates the performance of STREET, a mathematical model, to determine its suitability as an alternative to the OSPM model, which is a more elaborate numerical model. The performances of the models are tested using composite emission factors calculated as per the speed conditions present on the study site. Two different versions of CEF were used depending upon the speed of the vehicles during daytime and nighttime.

Keywords: dispersion; urban air pollution; carbon monoxide; NOx; air quality monitoring; STREET; OSPM; air quality; urban street canyons; street canyon models; vehicle pollution; traffic emissions; Dublin; Ireland; mathematical modelling.

DOI: 10.1504/IJEP.2011.038404

International Journal of Environment and Pollution, 2011 Vol.44 No.1/2/3/4, pp.71 - 77

Published online: 07 Feb 2011 *

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