Result of Radioactive Analysis around Fukushima Daiichi Nuclear Power Station
Results of radioactive nuclide analysis are published for the sample for below items in the power station and its surrounding area.
* Only Japanese for holidays and weekends
Prompt Report of Result of Analysis (September, 2013)
in the Air at the Site of Power Station
Result of radioactive nuclide analysis for the air sampled in the power station.
Seawater near Power Station
Result of radioactive nuclide analysis for the seawater sampled on and offshore of the power station.
in Seawater taken near Intake Canal of Power Station
Result of radioactive nuclide analysis for the seawater sampled at near the intake canal of unit 1 to 4 of the power station.
Subsurface Water near the Turbine Buildings
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Result of radioactive nuclide analysis for the water sampled from the sub drain around turbine buildings of unit 1 to 6.
Sub-drain Water in the Surroundings of Centralized Radiation Waste Treatment Facility
Result of radioactive nuclide analysis for the water sampled from the sub drain around centralized waste treatment facility.
Monitoring at the East Side of Unit 1-4 Turbine Buildings
- September 30, 2013
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
- September 29, 2013
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
- September 27, 2013
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection (2)
Display and non-display of article in the past
Results of radioactive nuclide analysis are published for the samples of groundwater at the east side of Unit 1-4 Turbine Buildings and seawater at the port in order to monitor the source and the extent of the radioactive materials in the groundwater, and whether the materials included in groundwater affect the sea.
Monitoring Regarding the Water Leak at Tank (South Water Outlet, Drainage Channel)
- September 30, 2013
- Sampling Results Regarding the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (South Water Outlet, Drainage Channel)
- September 29, 2013
- Sampling Results Regarding the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (South Water Outlet, Drainage Channel)
- September 28, 2013
- Sampling Results Regarding the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (South Water Outlet, Drainage Channel)
Display and non-display of article in the past
Monitoring Regarding the Water Leak at Tank (Observation Hole around the H4 Area)
- September 30, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Around the H4 Area)
- September 29, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Around the H4 Area)
- September 28, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Around the H4 Area)
Display and non-display of article in the past
In the data tables from September 5 to September 25, we initially posted the half-life time of tritium as approximately 3 years, which is incorrect. We corrected this value to approximately 12 years on September 30.
Investigation of Impact on the Groundwater Bypass Regarding the Water Leak at Tank (Pump Well)
- September 26, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Pump Well)
- September 18, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Pump Well) (2)
- September 18, 2013
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Pump Well)
Display and non-display of article in the past
Detailed Analysis Results of Groundwater Obtained around Unit 1 to 4
- September 27, 2013
- Detailed Analysis Results of Grounwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
- September 25, 2013
- Detailed Analysis Results of Grounwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
- September 20, 2013
- Detailed Analysis Results of Grounwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station (2)
Display and non-display of article in the past
Radioactive material was detected from the accumulated water inside the pit as a result of purification test at a well (sub-drain pit), which is adjacent to Unit 1-4 Buildings at Fukushima Daiichi Nuclear Power Station. Since there is a possibility that the water was affected by fallout, we installed new observation well around Unit 1-4 Buildings in order to assess the impact of fallout.
Nuclide Analysis Results of the Underground Reservoirs
- September 30, 2013
- Nuclide Analysis Results of the Underground Reservoirs/Underground Reservoirs Observation Holes (As of September 29)
- September 29, 2013
- Nuclide Analysis Results of the Underground Reservoirs/Underground Reservoirs Observation Holes (As of September 28)
- September 28, 2013
- Nuclide Analysis Results of the Underground Reservoirs/Underground Reservoirs Observation Holes (As of September 27)
Display and non-display of article in the past
Other
- September 30, 2013
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS
- Gas Sampling Results of Unit 1 PCV Gas Control System Conducted at Fukushima Daiichi Nuclear Power Station
- Gas Sampling Results of Unit 2 PCV Gas Control System Conducted at Fukushima Daiichi Nuclear Power Station
- Gas Sampling Results of Unit 3 PCV Gas Control System Conducted at Fukushima Daiichi Nuclear Power Station
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Upper Part of Unit 1 Reactor Building (1)
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Upper Part of Unit 1 Reactor Building (2)
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Exhaust System of the Unit 2 Reactor Building
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Upper Part of Unit 3 Reactor Building
- Fallout at and around the Site
- September 27, 2013
- Analysis Results of Seawater Obtained at the North Side of Unit 5,6 discharge channel and in Front of Unit 6 Water Intake Channel at Fukushima Daiichi NPS (This Analysis is for Confirmation Due to Disconnection of the Silt Fence at Unit 5 and 6)
- September 26, 2013
- Analysis Results of Seawater Obtained at the North Side of Unit 5,6 discharge channel and in Front of Unit 6 Water Intake Channel at Fukushima Daiichi NPS (This Analysis is for Confirmation Due to Disconnection of the Silt Fence at Unit 5 and 6)
- September 12, 2013
- Sampling Results Regarding the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station
- September 11, 2013
- Nuclides Analysis Results of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS
- September 5, 2013
- Seawater collected in offshore area of Ibaraki Prefecture
- September 1, 2013
- Sampling Results Regarding the Water Leak at a Tank in the H5 area in Fukushima Daiichi Nuclear Power Station (Revised Version)
Confirmed Results of Analysis (September, 2013)
- September 18, 2013
- For updated from July 16 to July 31
Seawater taken from Unit 1 to 4 side of South Discharge Channel (September, 2013)
Nuclide analysis is in operation on the radioactive materials in the water sampled near the South Discharge Channel (approximately 330m south of Unit 1-4 side of the South Discharge Channel) in response to the leaked water from the pipeline connecting from Desalination System (Reverse Osmosis Membrane) to Concentrated Water Storage Tank (occurred on March 26 and April 5, 2012).
* The sampling location has been changed on November 26, 2012. (Sampling is performed at approx. 1km south of the previous location.)
Analysis Results of Water at Water Treatment Facility
- September 18, 2013
- Measurement results of radioactive density of water at water treatment facility
Analysis Results of Fish and Shellfish(The Ocean Area Within 20km Radius of Fukushima Daiichi NPS)
- September 18, 2013
- Nuclide Analysis Results of Fish and Shellfish (In the port of Fukushima Daiichi NPS)
- Nuclide Analysis Results of Fish and Shellfish (Exclude in the port of Fukushima Daiichi NPS)
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The recent data is here.