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Title: Evaluation of diffusive gradients in thin-films (DGTs) as a monitoring tool for the assessment of the chemical status of transitional waters within the Water Framework Directive
Authors: Montero, N.; Belzunce-Segarra, M. J.; Gonzalez, J. -L.; Franco, J.; Larreta, J.
Citation: MARINE POLLUTION BULLETIN, 2012, 64, 31-39
Abstract: In this contribution, the potential use of diffusive gradients in thin-films (DGTs) for the chemical evaluation of transitional water bodies within the Water Framework Directive (WFD) has been studied. The water metal concentration has been evaluated in 13 estuaries in the southeastern Bay of Biscay. The DGTs were deployed in triplicate at two stations in each estuary, delimiting the tidal influence. The DGT results were in the ranges of 2-1570 ng L-1 for cadmium, 66-515 ng L-1 for copper, 30-3650 ng L-1 for nickel and 0.8-95.5 mu g L-1 for zinc. The DGTs provided reliable average labile metal concentrations in highly dynamic systems that were comparable with DGT measurements in coastal and estuarine waters world-wide. In addition, it was possible to discriminate those estuaries more susceptible to environmental impacts, being consistent with the historical contamination of each estuary. Based on the obtained results, a sampling strategy for the monitoring of transitional water bodies using DGTs is proposed. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords: Diffusive gradients in thin-films; Passive sampler; Estuary; Water Framework Directive; Metal; Monitoring; IN-SITU MEASUREMENT; TRACE-METAL LEVELS; PASSIVE SAMPLERS; ESTUARINE WATERS; PHYSICOCHEMICAL STATUS; TRANSPLANTED MUSSELS; MARINE WATERS; HEAVY-METALS; RIVER; SPECIATION
Issue Date: 2012
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Type: Article
Language: English
DOI: 10.1016/j.marpolbul.2011.10.028
URI: http://dspace.azti.es/handle/24689/634
ISSN: 0025-326X
E-ISSN: 1879-3363
Funder: Agencia Vasca del Agua
Portonovo Project (Interreg Atlantic Area Programme)
Fundacion Centros Tecnologicos- Inaki Goenaga
Appears in Publication types:Artículos científicos



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