Can seal eating explain elevated levels of PCBs and organochlorine pesticides in walrus blubber from Eastern Hudson Bay (Canada)?

animal salvaje animal sauvage bifenilos policlorados blubber camphechlor canada canfecloro chlordane clordano contaminantes ddt dieldrin dieldrine dioxins foca furane furanos furans insecticidas insecticide insecticides morsa morse odobenus rosmarus organochlorine compounds phoca phoca hispida phoque polluant pollutants polychlorinated biphenyls residues residuos seals toxicologia toxicologie toxicology walruses wild animals