Journal
JOURNAL OF MARINE SYSTEMS
Volume 56, Issue 3-4, Pages 363-374Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmarsys.2004.12.001
Keywords
metals; Suez Canal; sediments; sequential extraction
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The application of sequential extraction technique was used to determine the chemical association of heavy metals in five different chemical phases (exchangeable F1, bound to carbonate F2, bound to Fe-Mn oxides F3, bound to organic matter F4 and residual F5) for sediment samples collected from the Suez Canal. From the obtained data, it can be seen that the surplus of metal contaminants introduced into the sediment from sources usually exists in relatively unstable chemical forms. A high proportion of the studied metals remained in the residual fraction. Most of remaining portion of metals was bound to ferromanganese oxides fraction. The low concentrations of metals in the exchangeable fraction indicated that the sediments of Suez Canal were relatively unpolluted. (c) 2004 Elsevier B.V. All rights reserved.
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