Global & Disaster Medicine

9/30/1999: One person was killed, 49 were injured and thousands of others were forcibly confined to their homes for several days when radiation leaked from Japan’s Tokaimura nuclear plant

History Channel

“…..On September 30, workers were mixing liquid uranium when they made a serious, and inexplicable, mistake. Instead of pouring five pounds of powdered uranium into nitric acid, the workers poured 35 pounds, seven times too much. The resulting chain reaction caused gamma rays and stray neutrons to flood the purification chamber, where the radioactive water was treated…..”

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