Monitoring Organic Pollutants in Waters Using the Diffusive Gradients in the Thin Films Technique:Investigations on the Effects of Biofouling and Degradation

Wang, R. and Jones, K.C. and Zhang, H. (2020) Monitoring Organic Pollutants in Waters Using the Diffusive Gradients in the Thin Films Technique:Investigations on the Effects of Biofouling and Degradation. Environmental Science and Technology, 54 (13). pp. 7961-7969. ISSN 0013-936X

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Abstract

The diffusive gradients in thin films (DGT) passive sampling technique has been increasingly used to provide time-weighted average concentrations of the biorelevant fraction of organic contaminants in waters, with high spatial and temporal resolutions at low cost. This study was tested for the effects of biofouling and compound degradation/loss during sample handling/storage on the DGT measurement of a range of emerging organic pollutants. Biofouling was tested using biofilms collected from the influent and effluent of a typical urban wastewater treatment plant. Most (85%) target compounds showed no detectable effect on the DGT measurement when 8- and 15-day biofouled membrane filters were used. Four storage methods were designed to test for within-sampler degradation/loss for up to 2 months. Intact samplers can be simply stored in polyethylene bags at ambient temperature (18-26 °C) with most compounds stable (mass loss

Item Type:
Journal Article
Journal or Publication Title:
Environmental Science and Technology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600
Subjects:
ID Code:
154284
Deposited By:
Deposited On:
27 Apr 2021 10:30
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jun 2021 08:22