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Kyshtym disaster

1957 radiological contamination disaster in the Soviet Union Kyshtym disasterMap of the East Urals Radioactive Trace (EURT): area contaminated by the Kyshtym disaster.Native name Кыштымская аварияDate29 September 1957Time11:22 UTCLocationMayak, Chelyabinsk-40, Chelyabinsk Oblast, Russian SFSR, Soviet Union55°42′45″N 60°50′53″E / 55.71250°N 60.84806°E / 55.71250; 60.84806Also known asMayak disaster or Ozyorsk disasterTypeNuclear accidentCasualties270,000-500,000+ affected.

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