Kammala jumla mai zuwa: A ranar 12 ga Afrilu, 2011, shirin Australian Broadcasting Corporation (ABC) na Wakilin Kasashen Waje ya nuna wani rahoto game da Chuuk Lagoon wanda ya kwatanta tasirin kusan fitowar dubban tan na man fetur daga jiragen ruwan yaki na Japan da ke cikin kogin murjani zuwa na
Exxon Valdez ya zubar da ruwa a Alaska. Duk da haka, la'akari da mummunan yanayin yakin basasa na Japan a 1944, yawancin jiragen ruwa na iya samun ƙananan man fetur a cikin bunkers. Kungiyoyin kare muhalli suna binciken abubuwan da suka lalace yayin da kuma suke tuntuɓar masu bincike na Japan don su gwada sanin yawan man da zai iya kasancewa a cikin jirgi, musamman a cikin tankokin mai uku da suka nitse.