Monitoring by sampling
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.
* During weekends and national holidays, updates will be provided in Japanese only.
Prompt Report of Result of Analysis (June, 2014)
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
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.
Additional Sampling Results of Sub-drain Water on East Side of Incineration Workshop Building
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Monitoring at the East Side of Unit 1-4 Turbine Buildings
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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)
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Monitoring Regarding the Water Leak at Tank (Observation Hole around the H4 Area)
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Investigation of Impact on the Groundwater Bypass Regarding the Water Leak at Tank (Pump Well)
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Monitoring Regarding the Water Leak at Tank (Observation Hole around the H6 Area)
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Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
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Detailed Analysis Results of Groundwater Obtained around Unit 1 to 4
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
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Other
| June 30, 2014 |
Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) |
| June 27, 2014 |
in the soil in the ocean soil off the coast |
| June 25, 2014 |
Seawater collected in offshore area of Ibaraki Prefecture Seawater collected in offshore area of Miyagi Prefecture |
| June 24, 2014 |
Nuclide Analysis Results of Radioactive Materials in Accumulated Water in Turbine Building Basement at Fukushima Daiichi NPS |
| June 23, 2014 |
Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) |
| June 20, 2014 |
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) Analysis results of radioactive material nuclide in the air at Ventilation facility of Unit 2 reactor building in Fukushima Daiichi Nuclear Power Station 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 3 Reactor Building Nuclides Analysis Result of the Radioactive Materials in the Air at the Upper Part of Unit 4 Reactor Building Nuclides Analysis Result of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS (1) Nuclides Analysis Result of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS (2) Nuclides Analysis Result of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS (3) Nuclides Analysis Results of the Radioactive Materials in the Air at the Opening of Buildings at Fukushima Daiichi NPS Nuclide Analysis of the Radioactive Materials in the Fallouts obtained inside and outside of Fukushima Daiichi Nuclear Power Station Seawater collected in offshore area of Ibaraki and Miyagi Prefecture |
| June 19, 2014 |
Anaysis results of temporary storage tanks for groudwater bypass at Fukushima Daiichi Nuclear Power Station in the ocean soil off the coast (Dry Soil Rate : May 2014) |
| June 18, 2014 |
Seawater collected in offshore area of Miyagi Prefecture |
| June 16, 2014 |
Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) |
| June 13, 2014 |
Anaysis Results of Temporary Storage Tanks for Groudwater Bypass at Fukushima Daiichi Nuclear Power Station |
| June 11, 2014 |
Seawater collected in offshore area of Ibaraki Prefecture |
| June 10, 2014 |
Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) |
| June 7, 2014 |
Anaysis Results of Temporary Storage Tanks for Groudwater Bypass at Fukushima Daiichi Nuclear Power Station |
| June 6, 2014 |
Detailed Anaysis Results of Temporary Storage Tanks for Groudwater Bypass at Fukushima Daiichi Nuclear Power Station |
| June 4, 2014 |
Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) (Revised Version) |
| June 3, 2014 |
in the soil |
Confirmed Results of Analysis
Analysis results of the major 3 nuclides (I-131, Cs-134, Cs-137) are being announced as flash report on a daily basis.
With regard to reevaluation of the major 3 nuclides and analysis results of γ nuclides except for the major 3 nuclides are being announced as definite report.
Seawater taken from Unit 1 to 4 side of South Discharge Channel (June, 2014)
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 Fish and Shellfish(The Ocean Area Within 20km Radius of Fukushima Daiichi NPS)
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The recent data is here.