Hahladakis, J, Vasilaki, G, Smaragdaki, E et al. (1 more author) (2016) Application of ecological risk indicators for the assessment of Greek surficial sediments contaminated by toxic metals. Environmental Monitoring and Assessment, 188 (5). 271. ISSN 0167-6369
Abstract
Τhe 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.”
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, Springer International Publishing Switzerland. This is an author produced version of a paper published in Environmental Monitoring and Assessment. Uploaded in accordance with the publisher's self-archiving policy. The final publication is available at Springer via https://doi.org/10.1007/s10661-016-5275-6 |
Keywords: | Toxic metals; partitioning; sequential extraction; sediments; risk assessment |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Mar 2017 11:03 |
Last Modified: | 12 Apr 2017 17:15 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/s10661-016-5275-6 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:114194 |