Polychlorinated biphenyls (PCB) in bream of the river Rhine

No significant decrease of PCB levels in muscle of bream from the river Rhine.

In Germany use and production of PCB has been forbidden in 1989. However, until now high concentrations of this substance group is detected in fresh water fish. For the observation period 1995 to 2008 no significant decrease in PCB levels has been observed in muscle of bream sampled in the river Rhine. Fish from sampling sites downstream (Koblenz and Bimmen) even showed increasing concentrations. This result could be explained by remobilisation of PCB from contaminated sediments upstream and subsequent transport downstream.

PCB in bream of the river Rhine
Fig. 1 PCB in bream of the river Rhine Zoom in

 

Updated at: 2019-11-15

Recommended profiles

Specimen

Bream Bioindicator in rivers and lakes

Analytes

Polychlorinated biphenyls Persistent and toxic chlorinated compounds

Sampling area

Rhein Longest river in Germany