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Traffic and Climate Change Impacts on Water Quality: Measuring Build-Up and Wash-Off of Heavy Metals and Petroleum Hydrocarbons
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Author(s): Parvez Mahbub (Queensland University of Technology, Australia), Godwin Ayoko (Queensland University of Technology, Australia), Prasanna Egodawatta (Queensland University Of Technology, Australia), Tan Yigitcanlar (Queensland University of Technology, Australia)and Ashantha Goonetilleke (Queensland University Of Technology, Australia)
Copyright: 2010
Pages: 21
Source title:
Rethinking Sustainable Development: Urban Management, Engineering, and Design
Source Author(s)/Editor(s): Tan Yigitcanlar (Queensland University of Technology, Australia)
DOI: 10.4018/978-1-61692-022-7.ch011
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Abstract
Understanding the impacts of traffic and climate change on water quality helps decision makers to develop better policy and plans for dealing with unsustainable urban and transport development. This chapter presents detailed methodologies developed for sample collection and testing for heavy metals and total petroleum hydrocarbons, as part of a research study to investigate the impacts of climate change and changes to urban traffic characteristics on pollutant build-up and wash-off from urban road surfaces. Cadmium, chromium, nickel, copper, lead, iron, aluminium, manganese and zinc were the target heavy metals, and selected gasoline and diesel range organics were the target total petroleum hydrocarbons for this study. The study sites were selected to encompass the urban traffic characteristics of the Gold Coast region, Australia. An improved sample collection method referred to as ‘the wet and dry vacuum system’ for the pollutant build-up, and an effective wash-off plan to incorporate predicted changes to rainfall characteristics due to climate change, were implemented. The novel approach to sample collection for pollutant build-up helped to maintain the integrity of collection efficiency. The wash-off plan helped to incorporate the predicted impacts of climate change in the Gold Coast region. The robust experimental methods developed will help in field sample collection and chemical testing of different stormwater pollutants in build-up and wash-off.
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