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It may take longer time to display car surveys, walk surveys, and airborne surveys due to the large number of the registered data.
Updates
2021.10.28
  The following survey results have been revised.
   ・Survey Results of Readings of Sea Area Monitoring (Marine Soil) by NRA 2021.10.18
  The following survey results have been released.
   ・Survey Results of Results of the Monitoring Survey in the Restricted Areas and Planned Evacuation Zones (2012.10~2020.10)
  The following survey results have been revised.
   ・Survey Results of Results of towing monitoring(Add business id) 2021.10.4-5
  Retrieval time was improved.
2021.10.1
  The following new contents have been released.
   ・Radioactive Concentration-Deposition
   ・Radioactive Concentration-Soil / Environment Sample Analysis
   ・Radioactive Concentration-Atmosphere Dust (floating)
   ・Radioactive Concentration-Atmosphere Dust (fallout)
   ・Radioactive Concentration-River Water
   ・Radioactive Concentration-River Soil
   ・Radioactive Concentration-Drinking Water
   ・Radioactive Concentration-Game Meat and Marine organism
   ・Radioactive Concentration-towing monitoring
  The following survey results have been released.
   ・Survey Results of Vehicle-borne Survey Conducted by TEPCO (2020.11)
   ・Survey Results of Unmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances (2017~2020)
   ・Survey Results of Airborne Monitoring in the Distribution Survey of Radioactive Substances(2018~2020)
   ・Survey Results of Background Map
   ・Survey Results of Measurement Results of Air Dose Rates Nationwide and in Fukushima Prefecture (Real-time Distribution) Monthly Average.
   ・Survey Results of Readings of Sea Area Monitoring (Seawater) by NRA(2020.7~2020.10)
   ・Survey Results of Results of Monitoring (Seawater) by JCG(2020.5~2020.10)
   ・Survey Results of Results of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)(2020/3)
   ・Survey Results of Results of Monitoring (Marine Soil) by MOE(2018/6~2019/7)
   ・Survey Results of Results of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)(2020.2~2020.3)
   ・Survey Results of Distribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO.(2020.1~2021.12)
   ・Survey Results of Monitoring Results of Sediment in Public Water Areas by MOE(2019.5~2020.3)
   ・Survey Results of Readings of Sea Area Monitoring (Marine Soil) by JCG(2011.6~2017.12)
  The following survey results have been revised.
   ・Survey Results of Results of Monitoring (Seawater) by JCG(2011.8~2019.12)
   ・Survey Results of Results of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)(2011.5~2020.1)
   ・Survey Resu lts of Reinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)(2018.6~2019.7)
   ・Survey Results of Results of Monitoring (Marine Soil) by MOE(2011.6~2017.12)
2021.7.12
 Improved the top page design.
 Improved the display speed of each content.
2021.5.26
  1 survey results were released.
   ・Survey Results of Unmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances.
  1 survey results were updated.
   ・Walk-borne Survey(2020.10)
  Airborne Monitoring in the Distribution Survey of Radioactive Substances download data was corrected.
   ・Corrected the names of cities, wards, towns and villages in the download data of 1st to 5th (2011.4 to 2012.6) and 7th (2013.9) survey.
2021.3.31
  Open test.

This is the Database for Radioactive Substance Monitoring Data renewed and released on October 1, 2021. Click here for the old site.