Differential biomagnification of PCB, PBDE, Hg and Radiocesium in the food web of the European hake from the NW Mediterranean

► All contaminant concentrations increase with trophic level. ► Increase is exponential for Hg, power for PCBs and PBDEs, linear for 137Cs. ► Biomagnification is high for Hg, medium for PCBs and PBDEs, low for Cs.