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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| 2016-12-31 | Workers Exceeded Annual Whole Body Dose Limits | South Korea | Yeosu |
| 2008-03-12 | Worker over exposure | France | Toulouse |
| 1997-09-29 | Worker irradiation from a Co-60 source after a gamma radiography | Italy | TREVISO |
| 2021-05-29 | Worker exposure to X-ray generator | Japan | Setouchi Works of Nippon Steel Corp., Hyogo Pref. |
| 2023-03-09 | Worker Exceeded Statuary Annual Whole Body Dose Limits | Germany | Lower Saxony / Company for Material Testing |
| 1993-02-02 | UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADO | Russian Federation | KOLA-1 |
| 1993-02-02 | UNIT SCRAM CAUSED BY GRID DISTURBANCES DUE TO TORNADO | Russian Federation | KOLA-2 |
| 1991-04-10 | UNAVAILABILITY OF LOW POWER EMERGENCY PROTECTION (LPEP) DUE TO LOSS OF IONIZATION CHAMBER POWER SUPPLY | Ukraine | CHERNOBYL-1 |
| 1995-11-21 | Two occupational workers were injured by exposure of electron accelerator | China | TIANJIN |
| 1991-05-12 | RELEASE OF ACTIVE LIQUID FROM STORAGE TANK | Slovakia | BOHUNICE-1 |
| 1999-02-20 | Radiological accident in industrial gammagraphy with Ir-192 | Peru | PERU radiation source |
| 2015-08-27 | Radiographer Overexposure | Argentina | Rio Turbio, Santa Cruz |
| 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 |
| 1995-11-27 | RADIOACTIVE CONTAMINATION IN THE REACTOR BUILDING | Ukraine | CHERNOBYL-1 |
| 2025-09-01 | Radiation worker exposure exceeding 10 times the annual limit | Czech Republic | Roztoky u Prahy, museum |
| 2000-06-01 | Radiation Injury to Radiographer | United States of America | Channahon |
| 2007-10-22 | Potential Radiographer Overexposures | Spain | SGS TECNOS,S.A. |
| 2004-04-21 | Potential Personnel Overexposure at Irradiator Facility | United States of America | Aibonito |
| 2008-07-21 | Potential Overexposure During Co-60 Source Exchange | Brazil | Hospital |
| 1992-09-08 | PLUTONIUM NITRATE LEAK IN CELL | United Kingdom | BNFL, Sellafield |
| 1991-05-04 | PERSONNEL OVEREXPOSURE DURING PRECOMMISSIONING OPERATIONS INVOLVING HOT CELL | Lithuania | IGNALINA-2 |
| 2013-09-14 | Overxposure of an industrial radiographer | Germany | Refinery, Lingen |
| 2013-09-14 | Overxposure of an industrial radiographer | Germany | Refinery, Lingen |
| 2011-09-12 | Overexposure to a Radiographer Trainee's Extremities | United States of America | Lavaca, Texas |
| 2012-10-18 | Overexposure of Workers | Pakistan | Wajedo International, Karachi |
| 2018-12-18 | Overexposure of two workers | Iran | Islamic Republic of Iran, KHORASANE RAZAVI province |
| 2015-09-23 | Overexposure of two industrial radiographers | Iran | Islamic Republic of Iran, Oil refinery Company |
| 2014-02-28 | Overexposure of radiation workers | Australia | Queensland field site west of Chinchilla |
| 2008-08-01 | Overexposure of a worker | Spain | Tarragona |
| 2014-07-15 | Overexposure of a service technician repairing a biplane X-ray system | Switzerland | Hospital |
