Time as the critical factor in the investigation of the relationship between pollutant wash-off and rainfall characteristics
Alias, Noraliani, Liu, An, Goonetilleke, Ashantha, & Egodawatta, Prasanna (2014) Time as the critical factor in the investigation of the relationship between pollutant wash-off and rainfall characteristics. Ecological Engineering, 64, pp. 301-305.
The approach adopted for investigating the relationship between rainfall characteristics and pollutant wash-off process is commonly based on the use of parameters which represent the entire rainfall event. This does not permit the investigation of the influence of rainfall characteristics on different sectors of the wash-off process such as first flush where there is a high pollutant wash-off load at the initial stage of the runoff event. This research study analysed the influence of rainfall characteristics on the pollutant wash-off process using two sets of innovative parameters by partitioning wash-off and rainfall characteristics. It was found that the initial 10% of the wash-off process is closely linked to runoff volume related rainfall parameters including rainfall depth and rainfall duration while the remaining part of the wash-off process is primarily influenced by kinetic energy related rainfall parameters, namely, rainfall intensity. These outcomes prove that different sectors of the wash-off process are influenced by different segments of a rainfall event.
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|Item Type:||Journal Article|
|Keywords:||Pollutant wash-off, Water Sensitive Urban Design, Stormwater quality, Stormwater pollutant processes, Multivariate analysis|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Water Quality Engineering (090508)
|Divisions:||Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 Elsevier B.V.|
|Copyright Statement:||NOTICE: this is the author’s version of a work that was accepted for publication in Ecological Engineering. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ecological Engineering, [Volume 64, (March 2014)] DOI: 10.1016/j.ecoleng.2014.01.008|
|Deposited On:||09 Mar 2014 23:02|
|Last Modified:||01 Mar 2016 17:10|
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