Inderscience Publishers

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

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The relative performance of two atmospheric dispersion models STREET and OSPM is assessed using measured CO and NO
x
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

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