four big pollution diseases of Japan 四大公害病 [よんだいこうがいびょう] /(n) (See 水俣病,第二水俣病,四日市ぜんそく,イタイイタイ病) the four major pollution-caused illnesses (Minamata disease, Niigata Minamata disease, Yokkaichi asthma, Itai-itai disease)/four big pollution diseases of Japan/EntL2444170/ |