Fig. 2From: Equilibrium sampling of HOCs in sediments and suspended particulate matter of the Elbe RiverCtotal (µg kg−1 dry weight) of PCBs (a, c) and selected PAHs (b, d) in sediment and SPM along the German part of the River Elbe. The red line marks the environmental quality standard (EQS) of 20 µg kg−1 for single PCBs in sediment and SPM (German Surface Water Regulation). Data points are single measurementsBack to article page