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

被引：40
作者：
Montero, N. [1 ]
Belzunce-Segarra, M. J. [1 ]
Gonzalez, J. -L. [2 ]
Larreta, J. [1 ]
Franco, J. [1 ]
机构：
[1] AZTI Tecnalia, Div Marine Res, Pasaia 20110, Spain
[2] IFREMER, Dept Biogeochim & Ecotoxicol, F-83507 La Seyne Sur Mer, France
来源：
MARINE POLLUTION BULLETIN | 2012年 / 64卷 / 01期
关键词：
Diffusive gradients in thin-films; Passive sampler; Estuary; Water Framework Directive; Metal; Monitoring; IN-SITU MEASUREMENT; TRACE-METAL LEVELS; PASSIVE SAMPLERS; PHYSICOCHEMICAL STATUS; TRANSPLANTED MUSSELS; MARINE WATERS; HEAVY-METALS; ESTUARINE; RIVER; SPECIATION;
D O I：
10.1016/j.marpolbul.2011.10.028
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
引用
收藏
页码：31 / 39
页数：9
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