Minamata Disease is associated with exposure to which pollutant?

• A. Mercury
• B. Lead
• C. Arsenic
• D. Cadmium

Answer: (A)

Mercury exposure, especially organic methylmercury from polluted water, is what causes Minamata disease. When industrial waste containing methylmercury enters aquatic systems, it bioaccumulates in fish and shellfish. People who eat these contaminated seafoods absorb mercury, which damages the nervous system. This is especially harmful to developing fetuses, but adults can also suffer symptoms like numbness, tremors, and coordination problems. That specific link to mercury poisoning, particularly from methylmercury, defines Minamata disease.

Other pollutants cause different health problems, but they are not the cause of this disease. Lead poisoning leads to cognitive and neurological issues, arsenic is linked to skin lesions and cancers, and cadmium affects kidneys and bones. The Minamata case is a classic example of mercury’s neurotoxicity from environmental pollution.