Welkom op het expertplatform!
Dit platform verschaft informatie en kennis omtrent de WL expertisedomeinen 'hydraulica en sediment', 'havens en waterwegen', 'waterbouwkundige constructies', 'waterbeheer' en 'kustbescherming' - gaande van WL medewerkers met hun expertise, het curriculum van deze instelling, tot publicaties, projecten, data (op termijn) en evenementen waarin het WL betrokken is.
Het WL onderschrijft het belang van "open access" voor de ontsluiting van haar onderzoeksresultaten. Lees er meer over in ons openaccessbeleid.
Monthly variation of trace metals in North Sea sediments. From experimental data to modeling calculations
Lourino-Cabana, B; Billon, G; Lesven, L; Sabbe, K.; Gillan, D.C.; Gao, Y.; Leermakers, M.; Baeyens, W. (2014). Monthly variation of trace metals in North Sea sediments. From experimental data to modeling calculations. Mar. Pollut. Bull. 87(1-2): 237-246. dx.doi.org/10.1016/j.marpolbul.2014.07.053
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363
|  |
| Trefwoord |
|
| Author keywords |
Sediment; Porewater; Trace metals; Sulfides; Thermodynamic calculations;Seasonal effect |
| Auteurs | | Top |
- Lourino-Cabana, B
- Billon, G
- Lesven, L
- Sabbe, K.
|
- Gillan, D.C.
- Gao, Y.
- Leermakers, M.
- Baeyens, W.
|
|
| Abstract |
Seasonal variation in trace metal contamination in surface sediments was studied through high resolution profiles assessed monthly by DGT probes in muddy sediments of the North Sea. General parameters such as pH, temperature, dissolved oxygen and sulfides were also recorded to estimate their role in the speciation of trace metals. Experimental data were included in a thermodynamic equilibrium model to calculate major (geo)chemical processes at the water-sediment interface and to predict the fate of the trace metals in case of (physico-)chemical changes. Results showed lowest Fe, Co, Ni and Cd concentrations in summer, which are most probably due to the very high sulfide concentrations according to our theoretical calculations. Cu and Pb behavior were found to be less influenced by sulfides, since they are also strongly associated to organic matter. The whole set of results clearly indicated that metal speciation in these sediments is controlled by sulfides and OM contents. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
