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| Van Alsenoy, V.; Bernard, P.; Van Grieken, R.. |
| The elemental composition of sediment and suspended matter samples from the Belgian coastal and offshore regions of the Southern Bight of the North Sea and from the Scheldt estuary has been determined using X-ray fluorescence and atomic absorption spectrometry.Special attention was given to the heavy metals of the black and grey lists. The bulk sediment and the clay/silt fraction were analyzed. The average heavy metal contents in the fraction <63 µm were comparable to the levels in the suspended matter. Different normalization techniques led to the identification of two different populations of sediments. Most of the sediments were enriched in Cd, Cr, Hg, Pb and Zn but no enrichment was found for Cu and Ni. Comparing these data with older data indicates... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heavy metals; Pollution; Sediments; Suspended particulate matter. |
| Ano: 1993 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2789 |
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| Van Alsenoy, V.. |
| The continuous growth of technology has lead to an (uncontrolled) introduction of contaminants into the biosphere. The efforts of removing man-made pollutants from the natural environment have been unable to cope with the increasing amounts of waste materials and growing population. This work studies one group of substances which have a particular lasting effect on the natural balance in aquatic systems; the heavy metals. Trace metals are present in all the abiotic reservoirs of the aquatic systems; i.e. the water, the suspended material and the sediments and its pore waters. Complexation of the dissolved metals with organic and inorganic ligands, sorption and biological processes are the main processes determining the distribution of the investigated... |
| Tipo: Info:eu-repo/semantics/doctoralThesis |
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| Ano: 1993 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5801 |
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