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Characterization of harbor sediments from the English Channel: assessment of heavy metal enrichment, biological effect and mobility
Hamdoun, H.; Van-Veen, E.; Bassel, B.; Lemoine, M.; Coggan, J.; Leleyter, L.; Baraud, F. (2015). Characterization of harbor sediments from the English Channel: assessment of heavy metal enrichment, biological effect and mobility. Mar. Pollut. Bull. 90(1-2): 273–280. hdl.handle.net/10.1016/j.marpolbul.2014.10.030
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X, more
Peer reviewed article  

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Keywords
    Mobility; Marine
Author keywords
    Dredged sediment; Single extraction; Enrichment factor; Adverse effect inverse

Authors  Top 
  • Hamdoun, H.
  • Van-Veen, E.
  • Bassel, B.
  • Lemoine, M.
  • Coggan, J.
  • Leleyter, L.
  • Baraud, F.

Abstract
    For a full assessment of the environmental risk posed by dredged sediments not only the anthropogenic enrichment of contaminants, but also their mobility and biological impact should be considered. This study reports on the enrichment factor (EF), mobility, and Adverse Effect Index (AEI) of metals and metalloids in nine dredged sediments. Significant enrichment of As, Cd, Pb and Zn with respect to background values is detected, and calculated AEI values for these elements suggest that it is possible that a corresponding biological effect may be observed. Correlation coefficients also reveal a link between mobility in HCl and enrichment for Cd, Cr, Ni, Pb and Zn, however As and Cu do not display such a link, possibly suggesting that the source of contamination for these elements is less recent. Mobility and enrichment are two parameters which are often studied separately; however this paper shows that in some cases strong correlations occur.

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