Bio/Chemical Analysis of Sediments from the Elbe River, the North Sea and from Several Tributaries

23 sediment and SPM samples from the River Elbe in GER, CZ and the North Sea, analised by the JRC via standard methods (GC, HRMS, isotope dilution) were analysed with an Ah receptor test for dioxin like activity (DR CALUX). The CALUX test results showed a good correlatio with the results from standad instrumental analysis. No false negatives were observed asnd the CALUX test overestimated dioxin like activity in those samples with a high content of the 7-marker PCBs. In so far the CALUX test appeared to be technivcall y feasible for screening purpose of dioxin like activity in terrestrial and marine sediments.JRC.DDG.H.5-Rural, water and ecosystem resource