Abstract
Abstract We discuss the application of the integrated air quality model AURORA to evaluate the concentration levels of NO 2 , SO 2 , PM 10 (1999/30/EC), CO and benzene (2000/69/EC) in 11 selected streets in the city of Antwerp. Together with the emission module, the analytical street box module of AURORA was used for the assessment of pollutant concentrations in street canyons. Comparisons with a measurement station located in one of the evaluated street canyons show agreements that are within the uncertainty range given by the guidelines in the EU directives, except for the NO 2 concentrations. An analysis of the measured and modelled concentrations and percentiles shows that concentrations of NO 2 , CO and benzene vary widely from street to street, whereas for SO 2 and PM 10 the model results show less variation between individual streets, indicating a more important contribution from the urban and regional background.
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