This study investigated the behavioural changes of metals associated with road dust and their impacts on stormwater quality, and proposed a new risk assessment methodology, improving the original ecological and human health risk indices to enhance the decision making when evaluating environmental risk, regulating environmental guidelines and implementing pollution mitigation strategies. The geochemical behavior of road dust was determined using the sequential extraction method and Inductive Coupled Plasma Mass Spectrometry (ICP-MS). In addition, road dust characterization was done using advanced laboratory equipment, including Malvern Mastersizer 3000 particle analyser, Shimadzu TOC-VCSH organic carbon analyser, Scanning Electron Microscopy and X-ray Diffraction.
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Chief Investigators
- Dr Ayomi Jayarathne
- Associate Professor Prasanna Egodawatta
- Professor Godwin Ayoko
- Professor Ashantha Goonetilleke
Publications
- Jayarathne, Ayomi, Egodawatta, Prasanna, Ayoko, Godwin, Goonetilleke, Ashantha (2019) Transformation processes of metals associated with urban road dust: A critical review. Critical Reviews in Environmental Science and Technology, 49 (18), pp.1675-1699.
- Jayarathne, Ayomi, Wijesiri, Buddhi, Egodawatta, Prasanna, Ayoko, Godwin A., Goonetilleke, Ashantha (2020) Transformation Processes of Metals in Urban Road Dust: Implications for Stormwater Reuse. SpringerBriefs in Water Science and Technology.
