What is it about?
This research study investigated pollutants build-up characteristics on roof surfaces and undertook a comparison with road surfaces. This enabled differentiating between the specific characteristics of pollutants build-up on roads and roofs, in order to highlight the importance of roofs as a stormwater pollutant source area and in turn provide important insights for roof stormwater treatment design.
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Why is it important?
Impervious surfaces in an urban catchment are primary stormwater pollutant contributing areas. Appropriate treatment of stormwater runoff from these impervious surfaces is essential to safeguard the urban water environment. While urban roads have received significant research attention in this regard, roofs have not been well investigated. Key pollutant processes such as build-up on roads and roofs can be different due to the different surface characteristics.
Perspectives
The research study highlighted the significance of roofs as a stormwater pollutant source and the important need for a specific stormwater treatment strategy rather than the application of a combined approach for treating stormwater runoff from both, roads and roofs.
Professor Ashantha Goonetilleke
Queensland University of Technology
Read the Original
This page is a summary of: Differentiating Between Pollutants Build-Up on Roads and Roofs: Significance of Roofs as a Stormwater Pollutant Source, CLEAN - Soil Air Water, February 2016, Wiley,
DOI: 10.1002/clen.201500227.
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