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Significance of environmental dredging on metal mobility from contaminated sediments in the Oskarshamn Harbor, Sweden
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.ORCID iD: 0000-0002-3565-9943
Linnaeus University, Faculty of Health and Life Sciences, Department of Biology and Environmental Science.ORCID iD: 0000-0002-1903-760X
2015 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 119, 445-451 p.Article in journal (Refereed) Published
Abstract [en]

Metals are often seen as immobile in bottom sediments as long as these environmental sinks remain undisturbed. The aim of this paper was to evaluate the potential metal mobility due to resuspension under pseudo-dredging conditions of contaminated sediments in the Oskarshamn Harbor that are likely to be dredged as part of a remediation program established in Sweden. To address this concern, mixtures of water slurries were sampled from pore, leaching, and surface water over a period of nearly 36 d, and the major ions and trace metal concentrations determined. The results of this study pointed out the potential mobility and toxicity of metals posed by temporary changes during dredging operations, and highlighted the potential release of Cu, Pb, Zn, Mn, and Ni to the environment. Among the toxic metals, regarding pre and post dredging, Cu and Pb significantly demonstrated to be in ionic form, apparently because of dissolution of Fe-Mn oxy/hydroxides and decomposition of organic matter. (C) 2014 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2015. Vol. 119, 445-451 p.
Keyword [en]
Dredging, Contaminated sediments, Baltic Sea, Pore water, Leaching water, Geochemical modeling
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-40903DOI: 10.1016/j.chemosphere.2014.07.008ISI: 000347739600060PubMedID: 25084063OAI: oai:DiVA.org:lnu-40903DiVA: diva2:795886
Available from: 2015-03-17 Created: 2015-03-17 Last updated: 2016-11-02Bibliographically approved

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Fathollahzadeh, HomayounKaczala, FabioBhatnagar, AmitHogland, William
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CiteExportLink to record
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