Tokaimura tragedies: How Hisashi Ouchi became the most radioactive man

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Tokaimura tragedies: How Hisashi Ouchi became the most radioactive man
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After the 1999 Tokaimura nuclear accident, Hisashi Ouchi became the world's most radioactive man and was kept alive in terrible conditions for 83 days.

In 1999, human error derived from a lack of training and supervision caused a criticality accident at the Japan Nuclear Fuel Conversion Company’s nuclear plant in Tōkai, Japan.

Ouchi received a dose more than three times this lethal threshold, and he suffered from the devastating health effects of radiation poisoning for 83 days before dying.The village of Tokai, in Ibaraki, has been the center of Japan’s nuclear industry since the Japan Atomic Energy Research Institute and several nuclear installations, such as the Japan Atomic Energy Agency, were established nearby.

However, after the accident, it was revealed that the JCO workers were assigned to mix the uranium oxide in stainless steel buckets and then pour the solution directly into the precipitation tank, bypassing criticality controls. Generally, people exposed to radiation may experience skin reddening or radiation burns, headache, nausea, vomiting, diarrhea, fatigue, and fever about 2 hours after exposure. But radiation damages living tissues at a cellular level, and further developments include harm to the bone marrow, including depletion of white blood cells and red blood cells .

, painkillers, and granulocyte colony-stimulating factor .were shattered into pieces. None of this would work. Their supervisor, Yukata Yokokawa, suffered from minor radiation sickness and was discharged from the hospital three months after the accident.About 161 people from 39 families in a radius of 0.2 miles from the nuclear facility were evacuated in the five hours after the accident. Another 300,000 people in Tokai were told to stop spending time outdoors and refrain from harvesting crops or drinking well water.

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