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Dying to Find the Source – the Use of Rhodamine Wt as a Proxy for Soluble Point Source Pollutants in Closed Pipe Surface Drainage Networks : Volume 13, Issue 11 (12/11/2009)

By Mines, C. H.

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Book Id: WPLBN0003987205
Format Type: PDF Article :
File Size: Pages 10
Reproduction Date: 2015

Title: Dying to Find the Source – the Use of Rhodamine Wt as a Proxy for Soluble Point Source Pollutants in Closed Pipe Surface Drainage Networks : Volume 13, Issue 11 (12/11/2009)  
Author: Mines, C. H.
Volume: Vol. 13, Issue 11
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Ivey, G. N., Ghadouani, A., & Mines, C. H. (2009). Dying to Find the Source – the Use of Rhodamine Wt as a Proxy for Soluble Point Source Pollutants in Closed Pipe Surface Drainage Networks : Volume 13, Issue 11 (12/11/2009). Retrieved from http://hawaiilibrary.net/


Description
Description: School of Environmental Systems Engineering, The University of Western Australia, 35 Stirling Highway (M015), Crawley, Western Australia, 6009, Australia. Rhodamine WT (RWT), a xanthene dye, may serve as a proxy for soluble pollutants within quantitative tracing studies investigating point source contaminant transport. This study quantified the effects of altering the concentration, pH, temperature and salinity of a RWT solution on the detected fluorescence of RWT within the laboratory prior to a field release of RWT within a closed pipe urban drainage network. All RWT solutions exhibited stability and <10% variation from the expected concentration over a thirteen hour laboratory study period; pH related quenching of RWT fluorescence of up to 14.9% was observed for solutions with pH<3.9; and increasing salinity of RWT solution was found to have a negligible quenching effect. In direct contrast to previous studies RWT fluorescence was found to directly correlate with temperature of solution, and a temperature correction factor was determined and tested. The field release study succeeded in detecting RWT at concentrations two orders of magnitude greater than background fluorescence. Based on longitudinal dispersion theory, observed RWT peak concentrations were within 10% of predicted peaks.

Summary
Dying to find the source – the use of rhodamine WT as a proxy for soluble point source pollutants in closed pipe surface drainage networks

Excerpt
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