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    Predicting Event-Based Sediment and Heavy Metal Loads in Untreated Urban Runoff from Impermeable Surfaces (2020)

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    Type of Content
    Journal Article
    UC Permalink
    https://hdl.handle.net/10092/100097
    
    Publisher's DOI/URI
    https://doi.org/10.3390/w12040969
    
    Collections
    • Engineering: Journal Articles [1536]
    Authors
    Charters, Frances J.
    Cochrane, Thomas A.
    O'Sullivan, Aisling D.
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    Abstract

    Understanding the amount of pollutants contributed by impermeable urban surfaces during rain events is necessary for developing effective stormwater management. A process-based pollutant load model, named Modelled Estimates of Discharges for Urban Stormwater Assessments (MEDUSA), was further developed (MEDUSA2.0; Christchurch, New Zealand) to include simulations of dissolved metal loadings and improve total suspended solids (TSS) loading estimations. The model uses antecedent dry days, rainfall pH, average event intensity and duration to predict sediment and heavy metal loads generated by individual surfaces. The MEDUSA2.0 improvements provided a moderate to strong degree of fit to observed sediment, copper, and zinc loads for each modelled road and roof surface type. The individual surface-scale modelling performed by MEDUSA2.0 allows for identification of specific source areas of high pollution for targeted surface management within urban catchments

    Citation
    Charters F, Cochrane T, O'Sullivan A (2020). Predicting Event-Based Sediment and Heavy Metal Loads in Untreated Urban Runoff from Impermeable Surfaces. Water. 12(4).
    This citation is automatically generated and may be unreliable. Use as a guide only.
    Keywords
    MEDUSA2.0; stormwater quality; total suspended solids; particulate and dissolved metals; rainfall characteristics
    ANZSRC Fields of Research
    09 - Engineering::0905 - Civil Engineering::090508 - Water Quality Engineering
    09 - Engineering::0905 - Civil Engineering::090509 - Water Resources Engineering
    05 - Environmental Sciences::0502 - Environmental Science and Management::050206 - Environmental Monitoring
    Rights
    © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
    http://hdl.handle.net/10092/17651

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    • Stormwater Contaminant Load Monitoring (2016) and Modelling of the Heathcote Catchment and Six Representative Subcatchments 

      O'Sullivan AD; Cochrane TA; Charters F (University of Canterbury, 2017)
      Adverse effects from sediment and heavy metals have been observed in the Heathcote catchment, which is diverse in its land use activities. Stormwater management improvements are planned for the catchment through the Heathcote ...
    • The Spatial and Temporal Variability of Airborne Pollutants in Stormwater Runoff 

      Murphy, L.U.; O'Sullivan, A.; Cochrane, T.A. (University of Canterbury. Civil and Natural Resources Engineering, 2014)
      Atmospheric deposition is increasingly being recognised as a significant source of total suspended solids (TSS) and heavy metals in urban runoff. However, many uncertainties and challenges remain with measuring and managing ...
    • Untreated runoff quality from roof and road surfaces in a low intensity rainfall climate 

      Charters, F.J.; Cochrane, T.A.; O'Sullivan, A.D. (University of Canterbury. Civil and Natural Resources Engineering, 2016)
      Sediment and heavy metals in stormwater runoff are key pollutants of urban waterways, and their presence in stormwater is driven by climatic factors such as rainfall intensity. This study describes the total suspended ...
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