Atmospheric deposition as a source of stormwater pollution in Gold Coast, Australia
Gunawardena, Janaka, Egodawatta, Prasanna, Ayoko, Godwin A., & Goonetilleke, Ashantha (2011) Atmospheric deposition as a source of stormwater pollution in Gold Coast, Australia. In Proceedings of the 34th IAHR World Congress, 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water Engineering, Engineers Australia, Brisbane Convention and Exhibition Centre, Brisbane, Qld, pp. 1849-1856.
Atmospheric deposition is one of the most important pollutant pathways for urban stormwater pollution. Atmospheric deposition can be in the form of dry and wet depositions which have distinct characteristics in terms of pollutant types, pollutant sources and influential parameters. This paper discusses the outcomes of a comprehensive study undertaken to identify the characteristics of wet and dry deposition of pollutants.
Sample collection was undertaken at eight study sites with distinct characteristics. Four sites were close to road sites with varying traffic characteristics, whilst the other four sites had different land use characteristics. Dry deposition samples were collected for different antecedent dry days and wet deposition samples were collected immediately after rainfall events. The dry deposition was found to increase with the antecedent dry days and consisted of relatively coarser particles (greater than 1 µm) when compared to wet deposition. The wet deposition showed a strong affinity to rainfall depth, but was not related to the antecedent dry period. It was also found that smaller size particles (less than 1 µm) travel much longer distances from the source and deposit mainly with the wet deposition
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|Item Type:||Conference Paper|
|Additional Information:||As a copyright holder, Engineers Australia allows metadata only (not the full text papers) to be deposited into the open archive repositories.|
|Keywords:||Atmospheric deposition, Urban stormwater pollution, Traffic emissions, Wet and dry deposition|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Design (090701)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering Modelling (090702)
|Divisions:||Past > Schools > Chemistry
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2011 Engineers Australia|
|Deposited On:||05 Jul 2011 21:24|
|Last Modified:||05 Jun 2012 13:39|
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