Bahia de Minamata Índice Lugar Historia Consecuencias Enfermedad de Minamata Bioacumulación del mercurio. Medidas del gobierno. Minamata disease is a neurological syndrome caused by severe mercury poisoning. . Enseñanzas de la Enfermedad de Minamata y el Manejo del http :// Enfermedad cardiovascular. Exposición contaminado en la bahía de Minamata (Japón). Una em- presa química vertía directamente en el agua de la bahía.

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On October 21,Chisso was ordered by the Ministry of International Trade and Industry to switch back its wastewater drainage from the Minamata River to Hyakken Harbour and to speed up the installation of wastewater treatment systems kinamata the factory. That summer, Chisso sent gifts to the families who opted for arbitration rather than litigation.

Itai-itai disease Minamata disease Niigata Minamata disease Yokkaichi asthma. Hair samples were taken from the victims of the disease and also from the Minamata population in general.

Initially producing fertilisers, the factory followed the nationwide expansion of Japan’s chemical industry, branching out into production of acetyleneacetaldehydeacetic acidvinyl chlorideand octanolamong others.

They found that the victims, often members of the same family, were clustered in fishing hamlets along the shore of Minamata Bay. It has subsequently been withdrawn from circulation at the request of Tomoko’s family, so does not appear in recent anthologies of Smith’s works. Methylmercuryan organic mercury compound released in factory wastewater and the cause of Bshia disease.

Minamata disease – Wikipedia

The critical target of this compound is central nervous system. In Japanese, despite the English title. In this atmosphere, sufferers were reluctant to come forward and seek certification. Japanese photographer Takeshi Ishikawa, who assisted Smith in Minamata, has since exhibited his own photographs documenting the disease. Chisso’s Illegal Acts[32] published in Augustformed the basis of the ultimately successful lawsuit.


A more complete picture of the symptoms exhibited by patients was gradually uncovered. The violence was covered widely in the media, bringing the nation’s attention to the Minamata issue for the first time since the outbreak began. In general, these symptoms deteriorated and were followed by severe convulsions, comaand eventually death.

Minamata patients found the public gradually becoming more receptive and sympathetic as the decade wore on.

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Fisheries were damaged in terms of reduced catches, and in response, Chisso reached two separate compensation agreements with the fishery cooperative in and Minamata disease broke out again inthis time along the banks of the Agano River in Niigata Prefecture.

In an attempt to undermine Kumamoto University researchers’ organic mercury theory, Chisso and other parties with a vested interest that the factory remain open including the Ministry of International Trade and Industry and the Japan Chemical Industry Association funded research into alternative causes of the disease, other than its own waste.

H4 Escherichia coli O Inthe victims of Minamata disease were in a much weaker position than the fishermen. The immediate effect was the death of fish at the mouth of the river, and from that point on, new Minamata disease victims began to appear in other fishing villages up and down the coast of the Shiranui Seaas the pollution spread over an even greater area.

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Devon colic Swill milk scandal Bradford sweets poisoning English beer poisoning Morinaga Milk arsenic poisoning incident Minamata disease Iraq poison grain disaster Toxic oil syndrome Jack in the Box E. The extensive research by Kumamoto University and the government conclusion meant that this point was proved quite easily. While cat, dog, pig, and human deaths continued for 36 years, the government and company did little to prevent the pollution.

One woman was visited personally by a Chisso executive and harassed by her neighbours.

The photo was very widely published. This page was last edited on 31 Decemberat Scientists are testing natural products against methylmercury induced toxicity. Photographic documentation of Minamata started in the early s. On the day of the signing, the Minamata Citizens’ Council held a protest outside the Minamata factory gates.

In fact, the wastewater from the acetaldehyde plant, which the company knew still contained mercury and led to Minamata disease when fed to cats, was not treated through the Cyclator at the time.

During the investigation by researchers at Kumamoto Universitythe causal substance had been identified as a heavy metal and it was widely presumed that the Chisso plant was the source of the contamination.

Despite this, from Septemberinstead of discharging its waste into Hyakken Harbour the focus of investigation and source of original contaminationit discharged wastewater directly into Minamata River.