ENVIRONMENTAL HEALTH DEPARTMENTMINI. ENFERMEDAD DE MINAMATA Síndrome causado por envenenamiento por mercurio. ENVENENAMIENTO POR MERCURIO PRODUCCIÓN. Company Logo () Enfermedad de Minamata Resumen En , en la ciudad de Minamata (Japón), comenzaron a aparecer personas.

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Chisso’s president Kiichi Yoshioka drank a glass of water supposedly treated through the Cyclator to demonstrate that it was safe. The polluting factory owned by Showa Denko employed a chemical process using a mercury catalyst very similar to that used by Chisso in Minamata. This led the researchers to believe that the outbreak was caused by some kind of food poisoningwith contaminated fish and shellfish being the prime suspects.

The events in Niigata catalysed a change in response to the original Minamata incident. The results shocked the researchers involved. The litigation group lawyers sought to prove Chisso’s corporate negligence. In Japanese, despite the English title.

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However, in an effort to limit the liability and financial burden on the company, these committees were sticking to a rigid interpretation of Minamata disease.

Slowly but surely, the mood in Minamata and Japan as a whole was shifting. Wikiquote has quotations related to: Wikimedia Commons has media related to Minamata disease. Often these patients find themselves tied to their own homes and the care of their family, effectively isolated minakata the local community. A follow-up study ten years later discovered that many had died from “unknown causes”. The critical target of this compound is central nervous system. By using this site, you agree to the Terms of Use and Privacy Policy.


Former Chisso President Kiichi Yoshioka admitted that the company promoted a theory of dumped World War II explosives, though it knew it to be unfounded. Toxic Effects of Mercury. It withheld information on its industrial processes, leaving researchers to speculate what products the factory was producing and by what methods.


The animal effects were severe enough in cats that they came to be named as having “dancing cat fever”. She was ignored, her family’s fishing boat used without permission, their fishing nets minamaga cut, and human faeces were thrown at her in the street.

These pollutants had an environmental impact. Photographic documentation of Minamata started in the early s.

The Chisso Corporation first opened a chemical factory in Minamata in In general, these symptoms deteriorated and were followed by severe convulsions, comaand eventually death. Local doctors and medical officials had noticed for a long time an abnormally high frequency of cerebral palsy and other infantile disorders in the Minamata area.

The verdict handed down on 20 March represented a complete victory for the patients of the litigation group:. Initially producing fertilisers, the factory followed the nationwide expansion of Japan’s chemical industry, branching out into production of acetyleneacetaldehydeacetic acidvinyl chlorideand octanolenfermeddad others.

The arbitration committee minamatta their compensation plan on 25 May in a disorderly session at the Minnamata of Health and Welfare in Tokyo. Fisheries were damaged in terms of reduced catches, and in response, Chisso reached two separate compensation agreements with the fishery cooperative in and The fact that these children had been born after the initial outbreak and had never been fed contaminated fish also led their mothers to believe they were not victims.

The arbitration group were dismayed by the sums on offer. The litigation group, representing 41 certified patients 17 already deceased in 28 families, submitted their suit against Chisso in the Kumamoto District Court on 14 June It was caused by the release of methylmercury in the industrial wastewater from the Chisso Corporation ‘s chemical factory, which continued from to What was not known at the time was that exactly the opposite is the case with methylmercury: A more complete picture of the symptoms exhibited by patients was gradually uncovered.

This resulted in many applicants being rejected by the committee, leaving them confused and frustrated.

A committee was set up by Minamata Mayor Todomu Nakamura to mediate between the two sides, but this committee was stacked heavily in the company’s favour. The original Minamata disease and Niigata Minamata disease are considered two of the four big pollution diseases of Japan. Hot House members are also involved in raising awareness of Minamata disease, often attending conferences and seminars as well as making regular visits to elementary schools throughout Kumamoto Prefecture.


The years between the first set of “sympathy money” agreements in and the start of the first legal action to be taken against Chisso in are often called the “ten years of silence”. During andmany different theories were proposed by different researchers.

Chisso was coming under closer scrutiny and to deflect criticism, the wastewater output route was changed. Scientific community trying to decipher the in-depth molecular mechanism of the disease caused due to methylmercury.

Un año del Convenio de Minamata sobre el mercurio

He also spoke of his opposition to the minxmata in wastewater output route from Hyakken Harbour to Minamata River. Methylmercury produced in the acetaldehyde acetic acid facility of Shin Nihon Chisso’s Minamata factory was discharged in factory wastewater The prefectural governments did not publish the results and did nothing in response to these surveys.

Researchers from the Kumamoto University Research Group and Hajime Hosokawa who had retired from Chisso in used their experience from Minamata and applied it to the Niigata outbreak. The highest result minmaata was that of a woman from Goshonoura island who had ppm in her sample. Although the environmental protests did result in Japan becoming more democratized, it did not completely rid Japan of the system that first suppressed the fishermen and victims of Minamata disease.

His photographs cover enfwrmedad years to the present, with Minamata victims as his subjects.