Polybrominated diphenyl ethers and their methoxylated and hydroxylated analogs in Brown Bullhead (Ameiurus nebulosus) plasma from Lake Ontario

► PBDEs, MeO-PBDEs and OH-PBDEs were detected in Brown Bullhead from three locations in Lake Ontario. ► Concentrations of OH-PBDEs in plasma were about 50 folds higher than the MeO-PBDEs. ► OH- and MeO-PBDEs were evaluated against 20 authentic standards; eight OH-PBDEs and five MeO-PBDEs were identified. ► Additional seven unidentified OH-PBDEs and three unidentified MeO-PBDEs were detected in fish plasma.