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.
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| 2011-09-12 | Overexposure to a Radiographer Trainee's Extremities | United States of America | Lavaca, Texas |
| 2002-03-08 | DETERIORATION OF REACTOR VESSEL HEAD | United States of America | DAVIS BESSE-1 |
| 2000-06-01 | Radiation Injury to Radiographer | United States of America | Channahon |
| 2004-04-21 | Potential Personnel Overexposure at Irradiator Facility | United States of America | Aibonito |
| 1992-09-08 | PLUTONIUM NITRATE LEAK IN CELL | United Kingdom | BNFL, Sellafield |
| 2005-04-20 | Fractured Pipe in Thorp Reprocessing plant | United Kingdom | BNFL, Sellafield |
| 1991-02-26 | INOPERABILITY OF VALVES AT THE DISCHARGE SIDE OF HPSI PUMPS IN THREE TRAINS DUE TO FAILURE TO CONNECT POWER CABLES | Ukraine | KHMELNITSKI-1 |
| 1991-04-10 | UNAVAILABILITY OF LOW POWER EMERGENCY PROTECTION (LPEP) DUE TO LOSS OF IONIZATION CHAMBER POWER SUPPLY | Ukraine | CHERNOBYL-1 |
| 1995-11-27 | RADIOACTIVE CONTAMINATION IN THE REACTOR BUILDING | Ukraine | CHERNOBYL-1 |
| 1999-01-08 | Accidental overexposure to radiation from Co 60 source | Turkey | SCRAPYARD |
| 1999-01-08 | Loss of radioactive Co60 source of 700 Ci | Turkey | IKITELLI |
| 2014-07-15 | Overexposure of a service technician repairing a biplane X-ray system | Switzerland | Hospital |
| 2002-01-02 | High radiation levels measured on a package containing Iridium-192 | Sweden | Studsvik Nuclear AB |
| 2008-08-01 | Overexposure of a worker | Spain | Tarragona |
| 2007-10-22 | Potential Radiographer Overexposures | Spain | SGS TECNOS,S.A. |
| 2009-03-03 | Overexposure of a field radiography worker | South Korea | Argus, Jinju, South Korea |
| 1991-05-12 | RELEASE OF ACTIVE LIQUID FROM STORAGE TANK | Slovakia | BOHUNICE-1 |
| 1991-07-22 | BREACH OF UNIT LIMITING CONDITIONS FOR OPERATION WHILE PREPARING FOR RESTART AFTER MAINTENANCE DUE TO ECCS AND MSV UNAVAILABILITY | Russian Federation | SMOLENSK-2 |
| 1993-02-02 | UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADO | Russian Federation | KOLA-2 |
| 1993-02-02 | UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADO | Russian Federation | KOLA-1 |
| 1991-07-10 | RADIOACTIVE WATER SPILLAGE ON THE PLANT TERRITORY WHILE TRANSPORTING CASK WITH FUEL FRAGMENTS TO THE DRY RADWASTE REPOSITORY | Russian Federation | BILIBINO GEN |
| 2009-07-27 | Overexposure in the field radiography | Poland | ROil refinery, Gdansk |
| 2022-02-08 | Damaged radiation source out of regulatory control | Poland | Dąbrowa Górnicza/Mirków |
| 2014-02-14 | Exposure to workers | Peru | Ventanilla, Callao / SPI GAMMA |
| 1999-02-20 | Radiological accident in industrial gammagraphy with Ir-192 | Peru | PERU radiation source |
| 2012-01-12 | Accident in industrial radiography | Peru | Chilca, Lima |
| 2012-10-18 | Overexposure of Workers | Pakistan | Wajedo International, Karachi |
| 2013-12-02 | Missing Dangerous Source at Tepojaco, Hidalgo, Mexico | Mexico | Tepojaco, Hidalgo, Mexico |
| 1991-05-04 | PERSONNEL OVEREXPOSURE DURING PRECOMMISSIONING OPERATIONS INVOLVING HOT CELL | Lithuania | IGNALINA-2 |
| 1997-03-11 | Fire and Explosion at the Bituminization Demonstration Facility of the Reprocessing Plant | Japan | TOKAI REPROCESSING PLANT |
