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Understanding nutrient build-up on urban road surfaces

Miguntanna, Nandika Prasadani, Goonetilleke, Ashantha, Egodawatta, Prasanna, & Kokot, Serge (2010) Understanding nutrient build-up on urban road surfaces. Journal of Environmental Sciences, 22(6), pp. 806-812.

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Abstract

This paper discusses the outcomes of a research project on nutrients build-up on urban road surfaces. Nutrient build-up was investigated on road sites belonging to residential, industrial and commercial land use. Collected build-up samples were separated into five particle size ranges and were tested for total nitrogen (TN), total phosphorus (TP) and sub species of nutrients, namely, NO2-, NO3-, TKN and PO43-. Multivariate analytical techniques were used to analyse the data and to develop detailed understanding on build-up. Data analysis revealed that the solids loads on urban road surfaces are highly influenced by factors such as land use, antecedent dry period and traffic volume. However, the nutrient build-up process was found to be independent of the type of land use. It was solely dependent on the particle size of solids build-up. Most of the nutrients were associated with the particle size range <150 μm. Therefore, the removal of particles below 150 µm from road surfaces is of importance for the removal of nitrogen and phosphorus from road surface solids build-up. It is also important to consider the differences in the composition of nitrogen and phosphorus build-up in the context of designing effective stormwater quality mitigation strategies.

Impact and interest:

6 citations in Scopus
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4 citations in Web of Science®

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ID Code: 33659
Item Type: Journal Article
Keywords: nutrient pollution, pollutant build-up, stormwater pollution, urban water quality
DOI: 10.1016/S1001-0742(09)60181-9
ISSN: 1001-0742
Subjects: 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 2010 IOS Press/Elsevier BV
Deposited On: 02 Aug 2010 11:12
Last Modified: 01 Mar 2012 00:18

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