INES Levels
INES N/A
INES 0
INES 1
INES 2
INES 3
INES 4
INES 5
INES 6
INES 7

INES 3: Serious incident

Impact on People and Environment:
  • Exposure in excess of ten times the statutory annual limit for workers.
  • Non-lethal deterministic health effect (e.g., burns) from radiation.
Impact on Radiological Barriers and Control:
  • Exposure rates of more than 1 Sv/h in an operating area.
  • Severe contamination in an area not expected by design, with a low probability of ­significant public exposure.
Impact on Defence-in-Depth:
  • Near accident at a nuclear power plant with no safety provisions remaining.
  • Lost or stolen highly radioactive sealed source.
  • Misdelivered highly radioactive sealed source without adequate procedures in place to handle it.
▸ Legenda & explanation
date title location 
2018-12-18Overexposure of two workersIranIslamic Republic of Iran, KHORASANE RAZAVI province
2012-10-18Overexposure of WorkersPakistanWajedo International, Karachi
2011-09-12Overexposure to a Radiographer Trainee's ExtremitiesUnited States of AmericaLavaca, Texas
2013-09-14Overxposure of an industrial radiographerGermanyRefinery, Lingen
2013-09-14Overxposure of an industrial radiographerGermanyRefinery, Lingen
1991-05-04PERSONNEL OVEREXPOSURE DURING PRECOMMISSIONING OPERATIONS INVOLVING HOT CELLLithuaniaIGNALINA-2
1992-09-08PLUTONIUM NITRATE LEAK IN CELLUnited KingdomBNFL, Sellafield
2008-07-21Potential Overexposure During Co-60 Source ExchangeBrazilHospital
2004-04-21Potential Personnel Overexposure at Irradiator FacilityUnited States of AmericaAibonito
2007-10-22Potential Radiographer OverexposuresSpainSGS TECNOS,S.A.
2000-06-01Radiation Injury to RadiographerUnited States of AmericaChannahon
1995-11-27RADIOACTIVE CONTAMINATION IN THE REACTOR BUILDINGUkraineCHERNOBYL-1
1991-07-10RADIOACTIVE WATER SPILLAGE ON THE PLANT TERRITORY WHILE TRANSPORTING CASK WITH FUEL FRAGMENTS TO THE DRY RADWASTE REPOSITORYRussian FederationBILIBINO GEN
2015-08-27Radiographer OverexposureArgentinaRio Turbio, Santa Cruz
1999-02-20Radiological accident in industrial gammagraphy with Ir-192PeruPERU radiation source
1991-05-12RELEASE OF ACTIVE LIQUID FROM STORAGE TANKSlovakiaBOHUNICE-1
1995-11-21Two occupational workers were injured by exposure of electron acceleratorChinaTIANJIN
1991-04-10UNAVAILABILITY OF LOW POWER EMERGENCY PROTECTION (LPEP) DUE TO LOSS OF IONIZATION CHAMBER POWER SUPPLYUkraineCHERNOBYL-1
1993-02-02UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADORussian FederationKOLA-1
1993-02-02UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADORussian FederationKOLA-2
2021-05-29Worker exposure to X-ray generatorJapanSetouchi Works of Nippon Steel Corp., Hyogo Pref.
1997-09-29Worker irradiation from a Co-60 source after a gamma radiographyItalyTREVISO
2008-03-12Worker over exposureFranceToulouse