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Application of ecological risk indicators for the assessment of greek surficial sediments contaminated by toxic metals

Chachladakis Ioannis, Vasilaki Georgia, Smaragdaki Eleftheria, Gidarakos Evaggelos

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URIhttp://purl.tuc.gr/dl/dias/08F43294-BF5B-42CB-8EC8-41EC5EDA030A-
Identifierhttps://link.springer.com/article/10.1007%2Fs10661-016-5275-6-
Identifierhttps://doi.org/10.1007/s10661-016-5275-6-
Languageen-
TitleApplication of ecological risk indicators for the assessment of greek surficial sediments contaminated by toxic metalsen
CreatorChachladakis Ioannisen
CreatorΧαχλαδακης Ιωαννηςel
CreatorVasilaki Georgiaen
CreatorΒασιλακη Γεωργιαel
CreatorSmaragdaki Eleftheriaen
CreatorΣμαραγδακη Ελευθεριαel
CreatorGidarakos Evaggelosen
CreatorΓιδαρακος Ευαγγελοςel
PublisherSpringer Nature [academic journals on nature.com]en
Content SummaryΤhe present research investigates the partitioning of six selected toxic metals (Ni, Cr, Pb, Zn, Cu, and As) in eight sediment samples; half of them were collected from Elefsis Gulf, and the other half were taken from Koumoundourou Lake, Athens, Greece. Each one of them was treated by applying Tessier’s five-step sequential extraction procedure. Regarding gulf sediments, the results indicated that Cu exhibits a strong affinity to the organic matter with percentages ranging from 65 to 78 %. Considerable amount of Zn (32–40 %) is bound to the Fe-Mn fraction and the non-residual fraction, while Cr and Ni are bound to the organic fraction, an observation that suits all toxic metals examined. Regarding lake sediments, Pb is the predominant metal bound to Fe-Mn (48–51 %). It is also noteworthy that the percentage of Zn bound to carbonated fraction (5–15 %), indicating biological availability. In conclusion, the application of several ecological risk indicators demonstrated that Elefsis Gulf sediments correspond to a moderate pollution level, with Pb and Ni being less bioavailable than in the lake’s samples, in contrast to Zn which is more bioavailable. Finally, Koumoundourou Lakes’ basin is characterized of “low risk.”en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2018-10-15-
Date of Publication2016-
SubjectPartitioningen
SubjectRisk assessmenten
SubjectSedimentsen
SubjectSequential extractionen
SubjectToxic metalsen
Bibliographic CitationJ. Ν. Hahladakis, G. Vasilaki, E. Smaragdaki and E. Gidarakos, "Application of ecological risk indicators for the assessment of greek surficial sediments contaminated by toxic metals," Environ. Monit. Assess., vol. 188, no. 5, May 2016. doi: 10.1007/s10661-016-5275-6en

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