the four major pollution-caused illnesses (Minamata disease, Niigata Minamata disease, Yokkaichi asthma, Itai-itai disease); four big pollution diseases of Japanpozri aj 水俣病, 第二水俣病, 四日市ぜんそく a 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 Japanpozri aj 水俣病, 第二水俣病, 四日市ぜんそく a イタイイタイ病
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