The cases of organic mercury poisoning that had been known prior to Minamata Disease occurred as the result of the direct poisoning of those who were engaged in organic-mercury handling occupations or those who took it in accidentally http: Aside from the dangers of breathing in toxic building materials, the attacks raised concerns about potential sabotage of toxic waste sites, such as storage facilities adjacent to nuclear power plants, or of the transport of such waste between sites.
At one point, over half of the tax revenue of Minamata City authority came from Chisso and its employees, and the company and its subsidiaries were responsible for creating a quarter of all jobs in Minamata. Chisso knew of the environmental damage caused by its wastewater and was well aware that it was the prime suspect in the Minamata disease investigation.
Those afflicted would suffer a narrowed field of vision, muscle weakness, a loss of fine motor skills and their voice would change pitch.
Media[ edit ] Photographic documentation of Minamata started in the early s. Japanese photographer Takeshi Ishikawa, who assisted Smith in Minamata, has since exhibited his own photographs documenting the disease. It has subsequently been withdrawn from circulation at the request of Tomoko's family, so does not appear in recent anthologies of Smith's works.
JPY25 million "sympathy money" was paid to the alliance and a JPY65 million fishing recovery fund established. There is a tendency for the sceptical to dismiss observational studies on the basis of uncontrolled confounding, but it is difficult to come up with other realistic strong confounding scenarios for congenital anomalies in relation to established risk factors.
Relevant preconceptional exposures may also have postconceptional effects, for example if these are indirect e. The development of the brain remains subject to adverse influences well into the second trimester and beyond 1, 2. The trial heard from patients and their families but the most important testimony came from Chisso executives and employees.
Thirteen protesters were arrested. The defendant could have prevented the occurrence of Minamata disease or at least have kept it at a minimum. The Victims and Their World". In this atmosphere, sufferers were reluctant to come forward and seek certification.
The chemical reaction used to produce the acetaldehyde used mercury sulfate as a catalyst.
Payments for deaths ranged from JPY1. The trial heard from patients and their families, but the most important testimony came from Chisso executives and employees. Toxic wastes may be disposed of by using bioremediation processes, in which living organisms are added to the waste to degrade organically or transform contaminants or to reduce them to environmentally safe levels.
Chisso's Illegal Acts,  published in Augustformed the basis of the ultimately successful lawsuit.The highly toxic compound bioaccumulated in fish and shellfish in the Bay.
Being staples of their diet, the people living around the bay ended up eating toxic fish and shellfish, giving rise to the Minamata Disease. It is a toxic disorder of the central nervous system, killing thousands of people, including their culture and heritage.
Bythe Chisso Corporation was dumping waste into Minamata Bay and destroying the fishing areas. The theory behind Noguchi’s industry was to pay off the Minamata fisherman in exchange for damaging their fishing environment.
According to Eugene Smith’s interview of the people who lived in Minamata, the company believed that it was. Mercury poisoning was discovered in Niigata some years after the Minamata Bay disease in Kumamoto was recognised.
The source was the petrochemical company Showa Denko, located about 50 km upstream of the Agano River. For 20 years, the plant had been making a chemical called acetaldehyde, which is used to make plastics, drugs, and perfume.
As part of its normal operations, the Chisso Corporation dumped waste products into Minamata Bay.
One of the waste products of acetaldehyde production is the toxic. Minamata Disease is a toxic nervous disease caused by eating seafood contaminated with methylmercury compounds discharged from the Minamata plant (in Kumamoto Prefecture) of Shin-Nippon Chisso Hiryo. The Minamata Convention on Mercury commemorates the world’s most infamous mercury poisoning episode in Minamata Bay, Japan as a reminder of mercury’s devastating effects, and to catalyze action to prevent future Minamata disasters.