Figure 3From: Levels and trends of industrial chemicals (PCBs, PFCs, PBDEs) in archived herring gull eggs from German coastal regionsPCBs in herring gull eggs from three ESB locations in German coastal waters. The graph shows the sum of PCB congeners 28, 52, 101, 118, 138, 153, and 180 (Mellum and Trischen: North Sea; Heuwiese: Baltic Sea).Back to article page