Q6: Does anyone still develop Minamata disease?
A6: It can be said that there are no new cases, at least in Japan
The acetaldehyde production in Minamata factory of Chisso Corp. that caused
methylmercury pollution and Minamata disease was discontinued in 1968.
Since then, the concentration of methylmercury in fish at Minamata Bay
has been gradually decreasing, and now there are no fish with mercury content
higher than the provisional standard (total mercury: 0.4 ppm; methylmercury:
0.3 ppm) set by the national government.
Thus, there are no new cases of Minamata disease.