Hisashi Ouchi was a worker at the JCO Co., Ltd. uranium processing plant in Tokaimura, Japan. On September 30, 1999, a series of mistakes led to a criticality accident resulting in a massive release of radiation. This incident is one of the worst nuclear accidents in Japan's history. Ouchi and two other workers were exposed to lethal doses of radiation, and the subsequent medical treatment for Ouchi was both extensive and controversial.
Hisashi Ouchi's Biography
| Attribute | Details |
|---|---|
| Name | Hisashi Ouchi |
| Date of Birth | Unknown |
| Occupation | Nuclear plant worker |
| Incident Date | September 30, 1999 |
| Location | Tokaimura, Japan |
| Medical Condition | Severe radiation burns and damage |
| Date of Death | December 21, 1999 |
How Did the Accident Occur?
The accident at the Tokaimura plant was primarily caused by human error and a lack of safety protocols. Workers mixed too much uranium in a precipitation tank, which caused a chain reaction. This criticality accident released a significant amount of radiation into the environment, affecting not only the workers but also nearby residents. Ouchi was one of the most severely affected, suffering from acute radiation syndrome.
