MODELLIERUNG VON ARSEN IN DER MULDE

Arsenic is a toxic element, which has been the subject of several monitoring campaigns in the River Mulde, a tributary of the River Elbe, The Elbe-flood in 2002 poses the question about the mobilization of arsenic and other toxic elements out of the sediment. We thus investigated the sources, transport, loads and concentrations of arsenic in the catchment of the River Mulde. We developed a data-based mass balance-model and calibrated it against measured data from four monitoring campaigns in the years 1992 and 1993. We could identify discharges from different point and non-point sources by inverse modelling.