title: Application of Toxicity Identification Evaluation (TIE) procedures for the characterization and management of dredged harbor sediments.
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.
authors: Marine Research Division, AZTI-Tecnalia, Herrera Kaia, Portualdea z/g, 20110 Pasaia, Spain. nmontero@azti.es
authors: N
authors: N
authors: Montero
authors: M J
authors: MJ
authors: Belzunce-Segarra
authors: J-L
authors: JL
authors: Gonzalez
authors: I
authors: I
authors: Menchaca
authors: J M
authors: JM
authors: Garmendia
authors: N
authors: N
authors: Etxebarria
authors: O
authors: O
authors: Nieto
authors: J
authors: J
authors: Franco
mesh_terms: D000641:Ammonia / Q000633:toxicity; D033304:Amphipoda; D000818:Animals; D001681:Biological Assay; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D008670:Metals / Q000633:toxicity; D009930:Organic Chemicals / Q000633:toxicity; D018570:Risk Assessment; D012617:Sea Urchins; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000633:toxicity*
chemical_list: D008670:Metals; D009930:Organic Chemicals; D014874:Water Pollutants, Chemical; D000641:Ammonia