The incident resulted in radiation exposure for 667 people and the death of two workers. Tōkai-Mura had a history of taking shortcuts and putting their employees at risk to speed up production. The second, more serious Tokaimura nuclear accident (Japanese: 東海村JCO臨界事故 Tōkai-mura JCO-rinkai-jiko) occurred on 30 September 1999 in a JCO uranium processing plant. 31 May 1410 : Martin of Aragon died from a combination of indigestion and uncontrollable laughing. [24] The leukocytes being produced by transplanted tissues were found to have mutated by the residual radiation present in his body triggering autoimmune responses that exacerbated his rapidly deteriorating condition. Some of the last words written by Shinohara were “Mommy, please.”. Shinohara seemed to be getting better. [1] Several human errors caused the incident in 1997 including careless material handling procedures, inexperienced technicians, inadequate supervision and obsolete safety procedures on the operating floor. Second, these men had no training in this level of enrichment of uranium for fuel as this was the first time this process had been attempted in this factory in three years. Their supervisor, Yutaka Yokokawa, 54, received treatment from the National Institute of Radio-logical Sciences (NIRS) in Chiba. It is considered to be an extremely critical issue of nuclear effect in our medical history, where Hisashi was kept alive for 83 days in some experimental ways. I am not a guinea pig.” He was in extreme pain despite medication. When the reaction occurred, there were 16 kilograms of uranium in the mixture. It has been labeled as him in many places on the internet, but it has been pointed out to me that it probably isn’t him. Road blocks implemented, shelter in place lifted but schools closed all day, water drainage initiated to stop chain reaction. [23] In October 1999, JCO set up advisory booths to process compensation claims and inquiries of those affected. The highly-enriched uranium in production was improperly prepared for fuel conversion. [9], The next morning, workers ended the nuclear chain reaction by draining water from the surrounding cooling jacket installed on the precipitation tank. Tokaimura Nuclear Accident. 27 workers were exposed to additional radioactivity in this process. Ouchi received the largest radiation exposure resulting in problems with mobility, coherence and loss of consciousness. Log in or sign up for Facebook to connect with friends, family and people you know. In 2014, the Japanese government decided to establish the "Strategic Energy Plan" naming nuclear power as an important power source that can safely stabilize and produce the energy supply and demand of the nation. Over 600 plant workers, firemen, emergency personnel and local residents were exposed to radioactivity following the incident. If you consider naming your baby Hisashi we recommend you take note of the special meaning and history of the name as your baby’s name will play a big role in its life and your baby will hear it spok… Thank you for visiting!! The JCO facility started to dissolve and mix high-purity enriched uranium oxide with nitric acid to produce uranyl nitrate for shipping on 28 September 1999. In one of the book’s first stories, a woman describes what happened to her husband, his skin coming off, etc. His white blood cell count was 0. See also the related category japanese. The mixture was able to reach critical mass due to a number of factors. A STA report indicated JCO management had permitted these hazardous practices beginning in 1993 to shortcut the conversion process, even though it was contrary to approved nuclear chemical handling procedures. 5 Minutes. Owner-chef Hisashi Ouchi ensures all his seafood is wild, adds no sugar or MSG to his rice, uses only free-range eggs and shuns all artificial additives. [17], At around 10:35 am, the precipitation tank reached critical mass when its fill level, containing about 16 kilograms (35 pounds) of uranium, reached criticality in the tall and narrow buffer tank. [19] The buffer tank's tall, narrow geometry was designed to hold the solution safely and to prevent criticality. At this time, he was put on a ventilator and kept in a medically induced coma. Find your friends on Facebook. - The Federation of Electric Power Companies of Japan(FEPC)", "Nuclear Workers Appeared Unaware of Dangers", "Japan's record of nuclear cover-ups and accidents", "The Tokaimura Nuclear Accident: A Tragedy of Human Errors", "Tokaimura Criticality Accident - World Nuclear Association", "Tokai nuclear fuel plant reopens after 1997 fire", "The Tokaimura Accident: Nuclear Energy and Reactor Safety", "Explosion at PNC Tokai reprocessing plant | Wise International", http://www-ns.iaea.org/downloads/iec/tokaimura-report.pdf, "JCO employees plead guilty to negligence in deaths at Japanese nuclear facility", "Nuclear Accident in Tokai Is Among Japan's Worst", "Lessons learned from the JCO Nuclear Criticality Accident in Japan in 1999", "Japanese Nuclear Accident Timeline of Events", Tokaimura Criticality Accident – What happened in Japan, Criticality accident at Tokai nuclear fuel plant (Japan), https://en.wikipedia.org/w/index.php?title=Tokaimura_nuclear_accident&oldid=1001623293, Articles needing more viewpoints from April 2018, Wikipedia introduction cleanup from May 2020, Articles covered by WikiProject Wikify from May 2020, All articles covered by WikiProject Wikify, Wikipedia articles needing clarification from September 2020, All Wikipedia articles needing clarification, Articles with multiple maintenance issues, Wikipedia articles needing clarification from May 2020, Creative Commons Attribution-ShareAlike License, Criticality event occurred setting off radiation monitors and alarms, evacuation begins and employees exposed to radiation, 3 Workers; Hisashi Ouchi, Masato Shinohara and Yutaka Yokokawa, (5 hours later) STA confirms continuing chain reactions, Tokaimura sets up headquarters for the incidents, (12 hours later) broadcasts all surrounding residents to evacuate, informed Japan's leadership and cease all crop and water usage. Over twenty people were exposed to radiation.The second incident on 30 September 1999 happened at the JCO plant. For Masato Shinohara and Hisashi Ouchi, it was the first time that they had set eyes on the material. [10] Most likely due to improper extinguishing of the fire, a small explosion occurred. It had never been inspected while the plant was in operation. Omg that’s horrifying. People named Hisashi Ohuchi. At the time, Japan generated approximately 1/3 of its electricity from nuclear power. Written by on September 15, 2020.Posted in Uncategorized. [23] By July 2000, over 7,000 compensation claims were filed and settled. Radiation creates heat so the steel tank used to mix the fuel was soaking in cool water. Later Prime Minister Ryutaro Hashimoto criticized the delay that allowed radiation to continue to impact local areas. Hisashi Ouchi, aged 35, died 12 weeks after the accident. Ouchi becomes the nation’s worst nuclear radiation victim at an incident in a nuclear power plant in Japan. [1] The fatal dose of radiation is 4 Sv intravenously or 10 Sv by exposure. You are correct that that image is not Ouchi. This severely damaged his brain and kidneys. [1] Emergency service workers arrived, escorting other plant workers outside of the facility's muster zones. Hisashi Ouchi – The Victim Of Worst Nuclear Accident In History Yokokawa stayed in the hospital for six months. This facility was established to provide Tokaimura's electricity and nuclear fuel conversion needs. He has been irradiated. Hisashi Ouchi, 35 years old, Masato Shinohara, 39 years old, and Yutaka Yokokawa, 54 years old, were working at the JCO nuclear… icantbelieveitsnonfiction.com So been watching Chernobyl and wow its been amazing, so well done. Yutaka Yokokawa, their supervisor, had had only a couple of months' experience. Workers at a lumber yard very near the plant were not evacuated until 3pm, 4 1/2 hours after the reaction. His chromosomes were all destroyed, and over the next two months he was kept alive by doctors as his body slowly decomposed while Hisashi was alive. Hisashi Ouchi, 35 years old, Masato Shinohara, 39 years old, and Yutaka Yokokawa, 54 years old, were working at the JCO nuclear fuel processing plant located inside the Tōkai-Mura Nuclear Power Plant. [12] Aerial views over the nuclear processing plant building showed a damaged roof from the fire and explosion allowing continued external radiation exposure. New systems were put in place for handling a similar incident with governing legislature and institutions in an effort to prevent further situations from occurring. A worker in the next building became aware of the injured employees contacting emergency medical assistance; an ambulance escorted them to the nearest hospital. Hisashi Ouchi, Masato Shinohara, and Yutaka Yokokawa were preparing a small batch of fuel, the first in three years, for the Joyo experimental fast breeder reactor. Imagine that, 6 babies in Hawaii have the same name in 1933. [12] In response, officials prohibited entry to the facility and barricaded a 30,000 square foot area around the plant despite reporting no abnormal radioactivity. This was 100% of all the recorded Hisashi's in the USA. The Tōkai Nuclear Power Plant was commissioned in 1966, decommissioned later and reestablished in the 1970s. Pressure placed upon staff to prepare uranyl nitrate for shipping led to several errors including pouring the solution (uranium oxide in nitric acid). The workers bypassed the buffer tanks entirely, opting to pour the uranyl nitrate directly into the precipitation tank. share. [1] Both incidents were due to a lack of safety culture, improper training of technicians and procedural handling errors. Eventually, workers were able to drain the water, allowing the mixture to heat up and the reaction to cease. The Hisashi family name was found in the USA in 1920. [14] Following the public's outcry, the Dōnen nuclear fuel reprocessing plant closed until reopening in November 2000 when it was reinstated as a nuclear fuel reprocessing plant.[15]. It served as Japan's first commercial nuclear power plant. Hisashi Obuchi, The University of Tokyo, Department of Islamic Studies, Graduate Student. The workers followed JCO operating manual guidance in this process but were unaware it was not approved by the STA. Furthermore, a widely distributed but unauthorized 1996 manual recommended the use of buckets in making the solution. [23], In late March 2000, the STA cancelled JCO’s credentials for operation serving as the first Japanese plant operator to be punished by law for mishandling nuclear radiation. When the accident first occurred, other workers were unaware of the emergency. Hisashi Ouchi, Masato Shinohara, and Yutaka Yokokawa were preparing a small batch of fuel, the first in three years, for the Joyo experimental fast breeder reactor. In September 2000 JCO agreed to pay $121 million in compensation to settle 6,875 claims from people exposed to radiation and affected agricultural and service businesses. [17] The company had not had any incidents for over 15 years making company employees complacent in their daily responsibilities. [9] To save processing time and convenience, the team mixed the chemicals in stainless-steel buckets. Then a solution of boric acid was added to the fuel mixture. He faced negligence charges in October 2000. [9] This determination labeled the situation low risk outside of the facility. The deaths of Ouchi and Shinohara were the ultimate penalty for their carelessness. See Photos. He needed a peripheral cell transplant (this had never been done before) so that he could begin generating white blood cells again. 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