Suspended particle characteristics in storm runoff from urban impervious surfaces in Toowoomba, Australia
Article
Article Title | Suspended particle characteristics in storm runoff from urban impervious surfaces in Toowoomba, Australia |
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ERA Journal ID | 34710 |
Article Category | Article |
Authors | Brodie, Ian M. (Author) and Dunn, Peter K. (Author) |
Journal Title | Urban Water Journal |
Journal Citation | 6 (2), pp. 137-146 |
Number of Pages | 10 |
Year | 2009 |
Place of Publication | London, United Kingdom |
ISSN | 1573-062X |
1744-9006 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/15730620802541607 |
Web Address (URL) | http://www.informaworld.com/smpp/title~content=g911062784~db=all |
Abstract | Total Suspended Solids as a measure of suspended particles in urban stormwater has limitations and the alternative Suspended Sediment Concentration method was adapted to determine Non-Coarse Particle (NCP) concentration, defined as particles smaller than 500 μm. NCP was partitioned into the following classes: Very Fine Particles (<8 µm, VFP), Fine Particles (8-63 µm, FP) and Medium Particles (63-500 µm, MP). A Site Mean Concentration approach was adopted to differentiate the suspended particle characteristics between three impervious surfaces (roof, road and carpark) using runoff data collected for 35 storms. Runoff particle size distribution (PSD) of all surfaces was dominated by particles less than 63 μm. A weak trend of relatively constant VFP concentration was present in the road runoff data. Roof runoff PSD became finer as NCP concentration increased and, overall, the PSD of carpark runoff was coarser compared to road and roof runoff. These findings have runoff treatment implications as settling processes are influenced by particle size. |
Keywords | diffuse pollution; monitoring; pollutant build-up and run-off; sediment; stormwater runoff |
ANZSRC Field of Research 2020 | 370704. Surface water hydrology |
490302. Numerical analysis | |
400499. Chemical engineering not elsewhere classified | |
Byline Affiliations | Australian Centre for Sustainable Catchments |
Department of Mathematics and Computing |
https://research.usq.edu.au/item/9z0q1/suspended-particle-characteristics-in-storm-runoff-from-urban-impervious-surfaces-in-toowoomba-australia
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