INES Levels

INES 1: Anomaly

Impact on Defence-in-Depth
  • Overexposure of a member of the public in excess of statutory ­annual limits.
  • Minor problems with safety components with significant defence-in-depth remaining.
  • Low activity lost or stolen radioactive source, device or transport package.
(Arrangements for reporting minor events to the public differ from country to country. Also, it is difficult to ensure precise consistency in rating events between INES Level-1 and Below scale/Level-0)
Legenda & explanation
date title location 
2018-09-21Am-241 source meltingFinnish steel factory
2018-09-15Am-241 source meltingFinnish steel factory
2018-07-26Am-241 source meltingFinnish steel factory
2018-07-06Stolen industrial radiography device in Mexico CityMexico City
2018-06-26Am-241 source meltingFinnish steel factory
2018-02-08Stolen Moisture/Density Gauge in León, GuanajuatoComunidad Santa Ana del Conde, León, Guanajuato.
2017-10-16Stolen and recovered radioagraphy cameraTepic, Nayarit
2017-08-01Stolen radioactive materialSan Nicolas de los Garza, Nuevo León
2017-04-14Stolen gamma densitometerSouth of France / Valérian Company
2017-02-13Stolen source in San Juan del Río, Queretaro, MexicoSan Juan del Rio, Queretaro, Mexico
2017-01-23Stolen and recovered nuclear densimeterCiudad Juarez, Chihuahua, Mexico
2016-12-31Overexposure to RadiographerTulsa, Oklahoma/Tulsa Gamma Ray
2016-10-24Fuel fail and emission from research reactorInstitute for Energy Technology, Halden
2016-08-25Loss of a device containing radioactive sourcesBoguszow-Gorce, Poland
2016-08-05Stolen Source at Ciudad Obregon, Sonora, MexicoCiudad Obregon, Sonora, Mexico
2016-03-07A sealed radioactive Cs-137 source contaminated the premises of waste management companywaste management company
2015-12-15Loss of radioactive source (Cs-137, Bac Kan, 2015)Bac Kan cement company/Bac Kan province
2015-07-15Theft of a device containig radioactive sourceZabrze
2015-05-20Orphan source foundAS Bosfor DOOEL Skopje-Metal Scrap Yard
2015-05-15Eu-152 lightning rods found in metal scrapPAVOR DOOEL SKOPJE, Scrap Metal Yard Veles
2015-04-14Missing Dangerous Source at Cárdenas, Tabasco, MéxicoCárdenas, Tabasco, México
2015-04-01Loss of radioactive source (Co-60, Pomina, 2015)Pomina steel company/Bà Rịa-Vũng Tàu province
2015-03-14Found category 4 source, shutter of the source container partly openAustrian-Italian border station
2015-03-06Stolen radioactive sourcesPoznan
2015-02-03Missing Dangerous Source at Salamanca, GuanajuatoSalamanca, Guanajuato
2014-10-08THEFT OF RADIOACTIVE SOURCESTalara, Piura, Geowell S.A.I.C.
2014-09-12Loss of radioactive source (Ir-192, APAVE, 2014)APAVE Company/Hồ Chí Minh city
2014-07-30Object: Retrieval of Co-60 orphan source at Genoa port coming from Senegal.Genoa Voltri Port
2014-07-03Stolen pick-up truck with Ir-192 cat II sourceAtizapan de Zaragoza, Mexico State
2014-05-17Exposure of a temporary worker in excess of annual dose constraint during transfer operation of irradiated neutron detector.TARAPUR-4