The aim of this study was to assess cadmium and copper uptake by radish (Raphanus sativus) and to test
the capability of the diffusive gradient in thin films (DGT) technique to predict bioaccessibility of the
metals for this plant. Radish plants were grown in pots filled with uncontaminated control and
artificially contaminated soils differing in cadmium and copper contents. Metal concentrations in plants
were compared with free ion metal concentrations in soil solution, and concentrations measured by
DGT. Significant correlation was found between metal fluxes to plant and metal fluxes into DGT. Pearson
correlation coefficient for cadmium was 0.994 and for copper 0.998. The obtained results showed that
DGT offers the possibility of simple test procedure for soils and can be used as a physical surrogate for