Microbes In Human Welfare

The correct option is (D): industrial waste mercury/Methyl mercury into fishing water.
It was caused by the release of methylmercury in the industrial wastewater from the Chisso Corporation's chemical factory.
The release of mercury/methyl mercury from the industries into the fresh water bodies and the subsequent consumption of the water results in the neurological disease called Minamata disease. It was first reported in 1956 from the Kumamoto prefecture, Japan. The symptoms of the poisoning include ataxia, numbness in the hands and feet, muscle weakness, narrowing of the field of vision and damage to hearing and speech. The Minamata Convention on Mercury is the global treaty that was signed in 2013 to protect the human population from the adverse effects caused by the release of mercury. Hence, the correct answer is 'Industrial waste mercury/ Methyl mercury into fishing water'.