title: Polychlorinated biphenyls in adult mayflies (Hexagenia bilineata) from the upper Mississippi river.
mesh_terms: D000818:Animals; D001140:Aroclors / Q000032:analysis*; D007313:Insecta / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D014922:Wisconsin
chemical_list: D001140:Aroclors; D010573:Pesticide Residues; D011078:Polychlorinated Biphenyls