Japan Atomic Energy Agency (JAEA) collects and discloses the results of measurement of air dose rates in Fukushima Prefecture and neighboring
prefectures due to the accident
at TEPCO's Fukushima Daiichi NPP, which are disclosed by the Nuclear Regulation Authority and Fukushima Prefecture, etc.,
as well as the results of analysis of radioactive materials in land soil (soil surface and in soil),
sea area (sea water, sea bottom soil), rivers (river water, river bottom soil) and underground water, food (agricultural, forestry, livestock,
marine products, etc.).
The results are made public so that users can intuitively grasp the situation by visualizing the large volume of data.