Assessing the impact of Swales on receiving water quality

Revitt, D. Mike, Ellis, John Bryan and Lundy, Lian (2017) Assessing the impact of Swales on receiving water quality. Urban Water Journal, 14 (8). pp. 839-845. ISSN 1573-062X

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Swales are one type of sustainable drainage system (SuDS) which contribute to the management of water quality in receiving waterbodies. Using a semi-quantitative approach, an impact assessment procedure is applied to the residual water quality that is carried forward to surface waters and groundwaters following treatment within a swale. Both volumetric and pollutant distributions are considered as stormwater passes through the swale system. The pollutant pathways followed by TSS, nitrate, chloride, metals (Cd, Cu, Pb, Zn) and polyaromatic hydrocarbons (PAHs) are determined for a swale receiving highway runoff. For TSS, metals and PAHs between 20% and 29% of the total mean influent pollutant load is predicted to be directed to infiltration through the underlying soils compared to between 4% and 16% of chloride and nitrate. Although surface water impacts are deemed possible, the discharges of swales to groundwaters are assessed to represent a negligible impact for effectively maintained systems.

Item Type: Article
Research Areas: A. > School of Science and Technology > Natural Sciences
Item ID: 21162
Notes on copyright: This is an Accepted Manuscript of an article published by Taylor & Francis in Urban Water Journal on 20/01/2017, available online:
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Depositing User: Mike Revitt
Date Deposited: 25 Jan 2017 12:53
Last Modified: 03 Apr 2019 05:38

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