Abstract
Urban stormwater quality is multifaceted and the use of a limited number of factors to represent catchment characteristics may not be adequate to explain the complexity of water quality response to a rainfall event or site-to-site differences in stormwater quality modelling. This paper presents the outcomes of a research study which investigated the adequacy of using land use and impervious area fraction only, to represent catchment characteristics in urban stormwater quality modelling. The research outcomes confirmed the inadequacy of the use of these two parameters alone to represent urban catchment characteristics in stormwater quality prediction. Urban form also needs to be taken into consideration as it was found have an important impact on stormwater quality by influencing pollutant generation, build-up and wash-off. Urban form refers to characteristics related to an urban development such as road layout, spatial distribution of urban areas and urban design features.
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Liu, A., Goonetilleke, A. & Egodawatta, P. Inadequacy of Land Use and Impervious Area Fraction for Determining Urban Stormwater Quality. Water Resour Manage 26, 2259–2265 (2012). https://doi.org/10.1007/s11269-012-0014-4
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DOI: https://doi.org/10.1007/s11269-012-0014-4