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  • Title: Application of Toxicity Identification Evaluation (TIE) procedures for the characterization and management of dredged harbor sediments.
    Author: Montero N, Belzunce-Segarra MJ, Gonzalez JL, Menchaca I, Garmendia JM, Etxebarria N, Nieto O, Franco J.
    Journal: Mar Pollut Bull; 2013 Jun 15; 71(1-2):259-68. PubMed ID: 23465571.
    Abstract:
    This study refers to the performance of Phase I Toxicity Identification Evaluation (TIE) procedures to identify the contaminants (i.e. organic compounds, metals and ammonia) exerting toxicity in marine sediments from the Pasaia harbor (Oiartzun estuary, northern Spain). The effectiveness of the manipulations to reduce toxicity was proved with the marine amphipod survival test (whole-sediment) and the sea urchin embryo-larval assay (elutriates). By means of TIEs it was concluded that organic compounds were the major contaminants exerting toxicity, although toxic effects by metals was also demonstrated. Additionally, the combination of Phase I treatments allowed to investigate the toxicity changes associated to the mobility of contaminants during dredging activities. Therefore, the performance of TIE procedures as another line of evidence in the decision-making process is recommended. They show a great potential to be implemented at different steps of the characterization and management of dredged harbor sediments.
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