. _:b1217662 . _:b1217665 . _:b1217661 . _:b1217662 . "radioactive sediment"^^ . _:b1217664 . _:b1217661 _:b1217664 . _:b1217665 . "ENVO:00002154"^^ . _:b1217664 _:b1217663 . _:b1217662 . "ENVO"^^ . _:b1217665 . _:b1217665 . _:b1217661 . . _:b1217663 . _:b1217663 _:b1217662 .