Trace metals in the Belgian dumping area for acid wastes from the titanium dioxide industry (1985-89)

During the period of investigation, two stations in the dumping site and six reference stations were monitored. In water and sediments only the iron content, a key parameter, was determined. In benthos, Fe, Cr, Ni, Zn, Pb, Cu and Cd were assessed. The iron content was very similar in both the dumping area and in five reference stations (0.06-0.08 mg/1). In the station nearest to the coast however, the concentrations were 2 to 3 times higher, showing the influence of river inputs. There was no temporal trend. A lack of dissolved oxygen was never observed and no marked differences between the ei... Mehr ...