All Update History

2024.10.30 New

  The following new contents have been released.
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーRadiation measurement results of Wild Birds and Animals by the Research collaboration of Fukushima Prefectural Centre for Environmental Creation.
  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーFukushima River Tritium
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Monitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
   ・Radioactive Concentration-FoodーFoodーAlcohol safety confirmation survey by the National Tax Agency
2024.10.17 New

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Monitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
2024.10.11 New

  The following new contents have been released.
   ・Air Dose RateーAirborne MonitoringーRiver monitoring using an unmanned helicopter (Kakedo River, Odaka River)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーRiver monitoring using an unmanned helicopter (Kakedo River, Odaka River) (ground measurement) (measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーRiver monitoring using an unmanned helicopter (Kakedo River, Odaka River) (ground measurement) (measured height: 100 cm)
  The survey results have been added to the following measurement items.
   ・Air Dose RateーAirborne MonitoringーRadiation Distribution Measurements at a Riverbed Using an Unmanned Helicopter
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
2024.10.03

  The following new contents have been released.
   ・Radioactive Concentration-River Soil ーMonitoring Results of Radioactive Substances in Public Water Areas (Surrounding Environment) by MOE
  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Monitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
2024.09.27

  The following new contents have been released.
   ・Air Dose RateーAirborne MonitoringーMonitoring results before decontamination of the decontamination model demonstration (unmanned helicopter)
   ・Air Dose RateーAirborne MonitoringーMonitoring results after decontamination of the decontamination model demonstration (unmanned helicopter)
   ・Air Dose RateーAirborne MonitoringーAfter snow accumulation (unmanned helicopter)
   ・Air Dose RateーAirborne MonitoringーBefore snow accumulation (unmanned helicopter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーMonitoring results before decontamination of the decontamination model demonstration (measured on the ground) (Measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーMonitoring results before decontamination of the decontamination model demonstration (measured on the ground) (Measured height: 100 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーMonitoring results after decontamination of the decontamination model demonstration (measured on the ground) (Measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーMonitoring results after decontamination of the decontamination model demonstration (measured on the ground) (Measured height: 100 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーBefore snow accumulation (ground measurement) for studying the effect of snow accumulation (measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーBefore snow accumulation (ground measurement) for studying the effect of snow accumulation (measured height: 100 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAfter snow accumulation (ground measurement) for studying the effect of snow accumulation (measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAfter snow accumulation (ground measurement) for studying the effect of snow accumulation (measured height: 100 cm)
  The survey results have been added to the following measurement items.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose outside the 20 km Zone of TEPCO Fukushima Dai-ichi NPP (Measured by Glass Badge Dosimeter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose by The Federation of Electric Power Companies of Japan (Member Companies)
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater monitoring in Tokyo Bay by MLIT
2024.09.12

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterー Measurements of subdrain, groundwater drain, and groundwater bypass by Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーResults of environmental radiation monitoring survey of beaches by Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーRadioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
2024.09.05

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーRadioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Radioactive Substances in Public Water Areas (Bottom Sediment Quality) by MOE(Marine Soil)
2024.08.29

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-Atmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーRadioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
2024.08.22

  The survey results have been added to the following measurement items.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーSurvey Results of Environmental Radioactivity Level in the National Forests in Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater monitoring in Tokyo Bay by MLIT
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
2024.08.08

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーRadioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Radioactive Substances in Public Water Areas (Seawater) by MOE
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーMonitoring Results of Radioactive Substances in Public Water Areas (Water Quality) by MOE
   ・Radioactive Concentration-River SoilーRiver Bottom Sediment QualityーMonitoring Results of Radioactive Substances in Public Water Areas (Bottom Sediment Quality) by MOE
2024.08.02

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーMonitoring Results of Radioactive Substances in Aquatic Organisms (Water Quality) by MOE
   ・Radioactive Concentration-River SoilーRiver Bottom Sediment QualityーMonitoring Results of Radioactive Substances in Public Water Areas (Bottom Sediment Quality) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Radioactive Substances in Aquatic Organisms (Water Quality - Sea Area) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater monitoring in Tokyo Bay by MLIT
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Radioactive Substances in Aquatic Organisms (Bottom Sediment Quality - Sea Area) by MOE
2024.07.26

  The survey results have been added to the following measurement items.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in planned evacuation zones
   ・Air Dose RateーWalk-Walk-borne Survey in planned evacuation zones
   ・Air Dose RateーWalk-borne SurveyーMeasurement results of specific reconstruction and revitalization base areas (Tomioka point bases)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーRadiation Monitoring Using the Unmanned Helicopter after the Accident of the Nuclear Power Plant (ground measurement)(Measured height: 50 cm)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーRadiation Monitoring Using the Unmanned Helicopter after the Accident of the Nuclear Power Plant (ground measurement)(Measured height: 100 cm)
   ・Radioactive Concentration-Atmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area(Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Environmental Radiation Monitoring in Examination Operation Sea Area
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by JCG
   ・Radioactive Concentration-FoodーFoodーReadings of Survey Results of Food in Fukushima Prefecture
2024.07.10

  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterー・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of environmental radiation monitoring survey of beaches by Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーResults of environmental radiation monitoring survey of beaches by Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーRadiation Monitoring Survey Results of Wild Birds and Animals
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
2024.06.25

  The following new contents have been released.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of environmental radiation monitoring survey of beaches by Fukushima Prefecture
  The survey results have been added to the following measurement items.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose outside the 20 km Zone of TEPCO Fukushima Dai-ichi NPP (Measured by Glass Badge Dosimeter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose by The Federation of Electric Power Companies of Japan (Member Companies)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Radioactive Substances in Public Water Areas (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Radioactive Substances in Public Water Areas (Marine Soil) by MOE
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
2024.06.19

  The following new contents have been released.
   ・Radioactive Concentration-SeawaterーSeawaterーMeasurements of subdrain, groundwater drain, and groundwater bypass by Fukushima Prefecture
   ・Radioactive Concentration-FoodーFoodーAlcohol safety confirmation survey by the National Tax Agency
   ・Radioactive Concentration-Drinking water, spring water, domestic water, etcーspring waterーMeasurements of Natural Park Monitoring by MOE
   ・Radioactive Concentration-Drinking water, spring water, domestic water, etcーDrinking WaterーResults of tests for radioactive materials in tap water by the MOE
   ・Radioactive Concentration-WasteーSewage sludgeーMeasurements of Radioactivity Concentration of Sewage Sludge, etc. by MLIT
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーResults of the monitoring of wild animals and plants by the MOE
  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater monitoring in Tokyo Bay by MLIT
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Radioactive Substances in Public Water Areas (Seawater) by MOE
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Radioactive Substances in Public Water Areas (Marine Soil) by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
2024.05.10

  The following new contents have been released.
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Radioactive Substances in Aquatic Organisms (Water Quality - Sea Area) by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Radioactive Substances in Aquatic Organisms (Bottom Sediment Quality - Sea Area) by MOE
  The survey results have been added to the following measurement items.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーFukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Hot springs) in Fukushima Prefecture
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Tourist Spots) in Fukushima Prefecture
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings out of 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose outside the 20 km Zone of TEPCO Fukushima Dai-ichi NPP (Measured by Glass Badge Dosimeter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings inside the 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose by The Federation of Electric Power Companies of Japan (Member Companies)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of the Monitoring of Environmental Monitoring Samples
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Soil Samples
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーReadings of Soil Monitoring in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Environmental Monitoring Samples
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Drinking WaterーDrinking WaterーReadings of Radioactivity Level in Drinking Water by Prefecture
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーMonitoring Results of Radioactive Substances in Public Water Areas (Water Quality) by MOE
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーMonitoring Results of Radioactive Substances in Aquatic Organisms (Water Quality) by MOE
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーFukushima River Tritium
   ・Radioactive Concentration-River SoilーRiver Bottom Sediment QualityーMonitoring Results of Radioactive Substances in Aquatic Organisms (Bottom Sediment Quality) by MOE
   ・Radioactive Concentration-River SoilーRiver Bottom Sediment QualityーMonitoring Results of Radioactive Substances in Public Water Areas (Bottom Sediment Quality) by MOE
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in fish and shellfish by TEPCO
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
2024.04.25

  The following new contents have been released.
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater monitoring in Tokyo Bay by MLIT
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーMonitoring Results of Sea Area related to ALPS-treated water (Aquatic Organisms) by MOE
  The survey results have been added to the following measurement items.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Sea Area related to ALPS-treated water (Seawater) by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーMonitoring Results of Radioactive Substances in Aquatic Organisms (Aquatic Organisms) by MOE
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
2024.03.29

  The 2023 survey results have been added to the following survey results.
   ・Air Dose RateーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーAirborne MonitoringーAirborne Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in the Distribution Survey of Radioactive Substances (KURAMA)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Measurements in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーWalk-borne SurveyーWalk-borne Survey
   ・Radioactive Concentration-DepositionーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーIn-situ MeasurementーDeposition of Gamma-Emitting Nuclides in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーAirborne MonitoringーAir-borne Monitoring in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-Survey of Depth Distribution in SoilーSurvey of Depth Distribution in SoilーDepth Distribution of Radioactive Cesium in Soil Collected Using a Scraper Plate in the Distribution Survey of Radioactive Substances
2024.01.16

  The 2023 survey results have been added to the following survey results.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey Conducted by TEPCO
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in fish and shellfish by TEPCO
  The survey results up to September, 2023 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of marine environment monitoring related to the release of ALPS-treated water into the oceans
2023.12.12

  The following new contents have been released.
   ・Air Dose RateーWalk-borne SurveyーMeasurement results of specific reconstruction and revitalization base areas (Tomioka point bases)
2023.12.05

  The 2023 survey results have been added to the following survey results.
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate)ーLocality data
  The survey results up to October, 2023 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
  The survey results up to June, 2023 have been added to the survey results below.
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーFukushima River Tritium
2023.11.07

  The following survey results have been revised.
   ・Radioactive Concentration-DepositionーAirborne MonitoringーSurface deposition of iodine-131 released by the Fukushima Daiichi Nuclear Power Plant accident
2023.10.12

  The following new contents have been released.
   ・Air Dose RateーVehicle-borne SurveyーPatterns of daily activities (Vehicle-borne Survey)
   ・Air Dose RateーWalk-borne SurveyーPatterns of daily activities (Walk-borne Survey)
   ・Radioactive Concentration-DepositionーAirborne MonitoringーSurface deposition of iodine-131 released by the Fukushima Daiichi Nuclear Power Plant accident
  The 2022 survey results have been added to the following survey results.
   ・Radioactive Concentration-Game Meat and Aquatic organismーMonitoring Results of Aquatic Organisms (Aquatic Organisms)
   ・Radioactive Concentration-Game Meat and Aquatic organismーMonitoring Results of Aquatic Organisms (Aquatic Organisms - Sea)
  The survey results up to September, 2023 have been added to the survey results below.
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
2023.09.14

  The survey results up to July, 2023 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
  The 2022 survey results have been added to the following survey results.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーSurvey Results of Environmental Radioactivity Level in the National Forests in Fukushima Prefecture
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater in Public Water Areas by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Sediment in Public Water Areas by MOE
2023.08.08

  The following survey results have been revised.
   ・Air Dose RateーAirborne MonitoringーDose survey (drone survey) project outside the specified restoration/rehabilitation base area
2023.08.03

  The following new contents have been released.
   ・Air Dose RateーAirborne MonitoringーDose survey (drone survey) project outside the specified restoration/rehabilitation base area
   ・Air Dose RateーAirborne MonitoringーForest Monitoring Results (unmanned helicopter)
   ・Air Dose RateーWalk-borne SurveyーSurvey on Confirmation of Intention to Return to Areas Outside the Specified Reconstruction and Revitalization Area (Survey on Dose, Land Condition, etc.) Project
   ・Air Dose RateーWalk-borne SurveyーDetailed Measurement of Specific Reconstruction and Revitalization Area
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーForest Monitoring Results (Ground measurements)
2023.07.10

  The 2022 survey results have been added to the following survey results.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in planned evacuation zones
   ・Air Dose RateーWalk-borne SurveyーWalk-borne Survey in planned evacuation zones
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーRadiation Monitoring Survey Results of Wild Birds and Animals
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by JCG
  The survey results up to March, 2023 have been added to the survey results below.
   ・Radioactive Concentration-FoodーFoodーReadings of Survey Results of Food in Fukushima Prefecture
  The survey results up to January, 2023 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of marine environment monitoring related to the release of ALPS-treated water into the oceans
2023.05.31

  The 2022 survey results have been added to the following survey results.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey Conducted by TEPCO
  The survey results up to March, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
  The survey results up to March, 2023 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
  The following survey results have been revised.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
2023.04.26

  The following new contents have been released.
   ・Air Dose RateーAirborne MonitoringーRadiation Distribution Measurements at a Riverbed Using an Unmanned Helicopter
   ・Air Dose RateーAirborne MonitoringーBoundary monitoring of 5 mSv/year in the evacuation zone and planned evacuation zone, etc. (unmanned helicopter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーBoundary monitoring of 5 mSv/year (ground measurement) in the warning zone and planned evacuation zone, etc.
  The 2022 survey results have been added to the following survey results.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings out of 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose outside the 20 km Zone of TEPCO Fukushima Dai-ichi NPP (Measured by Glass Badge Dosimeter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings inside the 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose by The Federation of Electric Power Companies of Japan (Member Companies)
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Soil Samples
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーReadings of Soil Monitoring in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Environmental Monitoring Samples
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
   ・Radioactive Concentration--Drinking WaterーDrinking WaterーReadings of Radioactivity Level in Drinking Water by Prefecture
   ・Radioactive Concentration-Game Meat and Aquatic organismーAquatic organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
2023.03.28

  The 2022 survey results have been added to the following survey results.
   ・Air Dose RateーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーAirborne MonitoringーAirborne Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in the Distribution Survey of Radioactive Substances (KURAMA)
   ・Air Dose RateーWalk-borne SurveyーWalk-borne Survey
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Measurements in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-Survey of Depth Distribution in SoilーSurvey of Depth Distribution in SoilーDepth Distribution of Radioactive Cesium in Soil Collected Using a Scraper Plate in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーIn-situ MeasurementーDeposition of Gamma-Emitting Nuclides in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーAirborne MonitoringーAir-borne Monitoring in the Distribution Survey of Radioactive Substances
2023.03.17

  The homepage has been renewed.
2023.02.1

  The following new contents have been released.
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーReadings of the Monitoring on Radioactivity Level in fish and shellfish by TEPCO
  The 2022 survey results have been added to the following survey results.
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate)ーFukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation
2022.12.23

  The following new contents have been released.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of marine environment monitoring related to the release of ALPS-treated water into the ocean
  The 2022 survey results have been added to the following survey results.
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Hot springs) in Fukushima Prefecture
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Tourist Spots) in Fukushima Prefecture
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate)ーLocality data
  The survey results up to October, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
  The survey results up to March, 2022 have been added to the survey results below.
   ・Radioactive Concentration-FoodーFoodーReadings of Survey Results of Food in Fukushima Prefecture
  The survey results up to June, 2022 have been added to the survey results below.
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーFukushima River Tritium
  The 2021 survey results have been added to the following survey results.
   ・Radioactive Concentration-Marine Soilー Marine SoilーResults of Monitoring (Marine Soil) by MOE
  The survey results up to October, 2021 have been added to the survey results below.
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
2022.11.24

  The survey results up to May, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
  The survey results up to November, 2021 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Monitoring (Marine Soil) by JCG
  The survey results up to September, 2022 have been added to the survey results below.
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーRadiation Monitoring Survey Results of Wild Birds and Animals
  The survey results up to December, 2021 have been added to the survey results below.
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーMonitoring Results of Aquatic Organisms (Aquatic Organisms)
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーMonitoring Results of Aquatic Organisms (Aquatic Organisms - Sea)
2022.10.14

  Additional registration for the former evacuation-ordered zone has been added.
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーSurvey Results of Environmental Radioactivity Level in the National Forests in Fukushima Prefecture
  The 2021 survey results have been added to the following survey results.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
  The survey results up to August 31, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Seawater) by NRA
2022.9.2

  The following new contents have been released.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in planned evacuation zones
   ・Air Dose RateーWalk-borne SurveyーWalk-borne Survey in planned evacuation zones
  The survey results up to February 26, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーMonitoring Results of Seawater in Public Water Areas by MOE
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Sediment in Public Water Areas by MOE
2022.6.24

  The survey results up to May 31, 2022 have been added to the survey results below.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
  The following survey results have been revised.
   ・Radioactive Concentration-Survey of Depth Distribution in SoilーSurvey of Depth Distribution in SoilーDepth Distribution of Radioactive Cesium in Soil Collected Using a Scraper Plate in the Distribution Survey of Radioactive Substances
2022.5.31

  The 2021 survey results have been added to the following survey results.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey Conducted by TEPCO
  The 2020 survey results have been added to the following survey results.
   ・Radioactive Concentration-SeawaterーSeawaterーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Seawater)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Sea Water)
   ・Radioactive Concentration-Marine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)
   ・Radioactive Concentration-Marine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)
   ・Radioactive Concentration-Marine SoilーResults of Monitoring (Marine Soil) by MOE
  The following survey results have been revised.
   ・Air Dose RateーMonitoring Post and Realtime DosimeterーMeasurement Results of Air Dose Rates Nationwide and in Fukushima Prefecture (Real-time Distribution) Monthly Average
2022.4.28

  The following download data have been revised.
   ・Radioactive Concentration-DepositionーAirborne MonitoringーAirborne Monitoring in the Distribution Survey of Radioactive Substances
    2011~2021
2022.4.8

  The following new contents have been released.
   ・Radioactive Concentration-FoodーFood ItemーReadings of Survey Results of Food in Fukushima Prefecture
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Atmosphere Dust Sampling by NRA and Fukushima Prefecture
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーReadings of the Monitoring on Radioactivity Level in Fisheries Products by Fisheries Agency
  The 2021 survey results have been added to the following survey results.
   ・Air Dose RateーAirborne MonitoringーAirborne Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey in the Distribution Survey of Radioactive Substances (KURAMA)
   ・Air Dose RateーWalk-borne SurveyーWalk-borne Survey
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーFukushima Prefecture Environmental Radiation Monitoring-Mesh Investigation
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Hot springs) in Fukushima Prefecture
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Environmental Radiation Monitoring (at Tourist Spots) in Fukushima Prefecture
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Measurements in the Distribution Survey of Radioactive Substances
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings out of 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose outside the 20 km Zone of TEPCO Fukushima Dai-ichi NPP (Measured by Glass Badge Dosimeter)
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーAir Dose Rate Readings inside the 20 km Zone of Fukushima Dai-ichi NPP
   ・Air Dose RateーSurvey Meter (ambient dose equivalent rate)ーReadings of Accumulated Dose by The Federation of Electric Power Companies of Japan (Member Companies)
   ・Radioactive Concentration-Survey of Depth Distribution in SoilーSurvey of Depth Distribution in SoilーDepth Distribution of Radioactive Cesium in Soil Collected Using a Scraper Plate in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーIn-situ MeasurementーDeposition of Gamma-Emitting Nuclides in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-DepositionーAirborne MonitoringーAir-borne Monitoring in the Distribution Survey of Radioactive Substances
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Soil Samples
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーReadings of Soil Monitoring in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Soil / Environment Sample AnalysisーSoil / Environment Sample AnalysisーResults of the Monitoring of Environmental Monitoring Samples
   ・Radioactive Concentration-Atmosphere Dust (floating)ーAtmosphere Dust (floating)ーReadings of Dust Sampling in 20km Zone of TEPCO Fukushima Dai-ichi NPP
   ・Radioactive Concentration-Atmosphere Dust (fallout)ーMonthly FalloutーReading of Environmental Radioactivity Level by Prefecture (Monthly Fallout)
   ・Radioactive Concentration-SeawaterーSeawaterーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Marine Soil around Fukushima Dai-ichi NPP by TEPCO
   ・Radioactive Concentration-Marine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
   ・Radioactive Concentration-Drinking WaterーDrinking WaterーReadings of Radioactivity Level in Drinking Water by Prefecture
2022.2.24

  Added annual download page. You can access it from the annual download button at the top of the page.
2021.12.21

  The following new contents have been released.
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate) ーLocality data
   ・Radioactive Concentration-River WaterーRiver / Lake WaterーFukushima River Tritium
   ・Radioactive Concentration-Game Meat and Aquatic organismーGame MeatーRadiation Monitoring Survey Results of Wild Birds and Animals
   ・Radioactive Concentration-Game Meat and Aquatic organismーMarine organismーMonitoring Results of Aquatic Organisms (Aquatic Organisms - Sea)
  The following survey results have been revised.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG
2021.10.28

  The following survey results have been revised.
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA
2021.10.18

  The following survey results have been released.
   ・Air Dose Rateー Survey Meter (ambient dose equivalent rate) ーResults of the Monitoring Survey in the Restricted Areas and Planned Evacuation Zones(2012.10~2020.10)
  The following survey results have been revised.
   ・Radioactive Concentration-towing monitoringーtowing monitoringーCesium-137 concentration by 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.
   ・Air Dose RateーVehicle-borne SurveyーVehicle-borne Survey Conducted by TEPCO(2020.11)
   ・Air Dose RateーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances (2017~2020)
   ・Air Dose RateーAirborne MonitoringーAirborne Monitoring in the Distribution Survey of Radioactive Substances(2018~2020)
   ・Air Dose RateーBackgroundーBackground Map
   ・Air Dose RateーMonitoring Post and Realtime DosimeterーMeasurement Results of Air Dose Rates Nationwide and in Fukushima Prefecture (Real-time Distribution) Monthly Average
   ・Radioactive Concentration-SeawaterーSeawaterーReadings of Sea Area Monitoring (Seawater) by NRA(2020.7~2020.10)
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG(2020.5~2020.10)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)(2020.3)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)(2020.2~2020.3)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Monitoring (Marine Soil) by MOE(2018.6~2019.7)
   ・Radioactive Concentration-Marine SoilーMarine SoilーDistribution of Radioactivity Concentration in the Seawater around Fukushima Dai-ichi NPP by TEPCO.(2020.1~2021.12)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by NRA(2020.1~2020.10)
   ・Radioactive Concentration-Marine SoilーMarine SoilーMonitoring Results of Sediment in Public Water Areas by MOE(2019.5~2020.3)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReadings of Sea Area Monitoring (Marine Soil) by JCG(2011.6~2017.12)
  The following survey results have been revised.
   ・Radioactive Concentration-SeawaterーSeawaterーResults of Monitoring (Seawater) by JCG(2011.8~2019.12)
   ・Radioactive Concentration-Marine SoilーMarine SoilーResults of Environmental Radioactivity Monitoring by Fukushima Prefecture (Ports and Sea Surface Fishing Ground) (Marine Soil)(2011.5~2020.1)
   ・Radioactive Concentration-Marine SoilーMarine SoilーReinforcement of Monitoring in Fukushima Daiichi Nuclear Power Station Peripheral Sea Area (Marine Soil)(2018.6~2019.7)
   ・Radioactive Concentration-Marine SoilーMarine Soilー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.
   ・Air Dose RateーAirborne MonitoringーUnmanned Helicopter Monitoring in the Distribution Survey of Radioactive Substances.
  1 survey results were updated.
   ・Air Dose RateーWalk-borne Surveyー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.