Fukushima Monitoring Database

Following the accident at the Fukushima Daiichi Nuclear Power Station of Tokyo Electric Power Company (Fukushima Daiichi accident) that began on 11 March 2011, Japanese authorities started to collect information about the radioactive material released from the power station into the atmosphere, the neighbouring sea, and the surrounding land. This data was provided to the IAEA, according to the Convention on Early Notification of a Nuclear Accident, and the IAEA in turn reported the information to Member States and the public.

The Fukushima Monitoring Database (FMD) was developed by the IAEA’s Incident and Emergency Centre (IEC) to provide Member States and the public with a record of the results of radiological monitoring performed in Japan that was officially reported to the IAEA during the emergency phase of the accident, which ended on 16 December 2011 when Cold Shutdown Condition was achieved.

The IAEA would like to acknowledge the cooperation of the Government of Japan during the preparation of this database.

The IAEA also acknowledges the following Member States and International Organizations who also reported radiological monitoring information to the IEC following the Fukushima Daiichi accident: Algeria, Austria, Belgium, Bulgaria, Canada, China, Czech Republic, Denmark, Finland, France, Georgia, Germany, Greece, Iceland, India, Islamic Republic of Iran, Ireland, Italy, Republic of Korea, Republic of Latvia, Lithuania, Luxembourg, Malaysia, Mexico, Republic of Philippines, Poland, Portugal, Romania, Russian Federation, Singapore, Slovak Republic, Spain, Sri Lanka, Sweden, Switzerland, Ukraine, United States of America and the European Commission. The IAEA would like to make additional acknowledgement to the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) for their cooperation throughout the Fukushima Daiichi accident, by making available to the IAEA the results from their monitoring stations.

Department of
Nuclear Safety and Security
 Department of Nuclear Safety and Security
Incident and Emergency
 Incident and Emergency Centre
Fukushima Nuclear Accident
In Focus
 Fukushima Nuclear Accident
Nuclear Safety Action Plan
 IAEA Action Plan on Nuclear Safety