Minamata Disease occurred in the 1960s in which country due to industrial mercury waste?

• A. Japan
• B. United States
• C. China
• D. India

Answer: (A)

Mercury pollution from industry can enter waterways and be converted into methylmercury, which then bioaccumulates up the food chain. This means people who eat contaminated fish or shellfish absorb high doses of mercury, leading to neurological damage. That pattern was seen with Minamata Disease in the 1950s and 1960s in Japan, where wastewater from a local chemical factory was discharged into Minamata Bay. The mercury there entered the marine ecosystem, built up in seafood, and caused severe illness in residents who consumed it. This event—and the link between industrial waste, mercury toxicity, and seafood consumption—identifies Japan as the country where Minamata Disease occurred.