PCBs and PBDEs were measured in liver samples from Franciscana dolphins.
BDE 47, 99 and 100 were found in all individuals samples.
PCB-153, 138 and 180 were the major PCB congeners detected.
Results suggest the existence of PCBs and PBDEs contamination sources in Brazil.
PCBs and PDBEs levels could represent a risk to these endangered dolphin species.