[Changes in the level of water contamination by mercury in and around Minamata Bay].
D000818:Animals; D005399:Fishes / Q000032:analysis; D006801:Humans; D007564:Japan; D008628:Mercury / Q000032:analysis*; D008767:Methylmercury Compounds / Q000032:analysis; D008974:Mollusca / Q000032:analysis; D012623:Seawater / Q000032:analysis; D014877:Water Pollution, Chemical / Q000032:analysis*
D008767:Methylmercury Compounds; D008628:Mercury