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 (April, 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
- April 30, 2014
- Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building
- April 29, 2014
- Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building
- April 28, 2014
- Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building
Display and non-display of article in the past
Additional Sampling Results of Sub-drain Water on West Side of Incineration Workshop Building
- April 25, 2014
- Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (2)
- April 25, 2014
- Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (1)
- April 23, 2014
- Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (2)
- April 23, 2014
- Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (1)
Display and non-display of article in the past
Monitoring at the East Side of Unit 1-4 Turbine Buildings
- April 30, 2014
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
- April 29, 2014
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
- April 28, 2014
- Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
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)
- April 30, 2014
- Sampling Results Regarding the Water Leak at the Tanks in the H4 area in Fukushima Daiichi Nuclear Power Station (South Water Outlet, Drainage Channel)
- April 29, 2014
- Sampling Results Regarding the Water Leak at the Tanks in the H4 area in Fukushima Daiichi Nuclear Power Station (South Water Outlet, Drainage Channel)
- April 28, 2014
- Sampling Results Regarding the Water Leak at the Tanks 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)
- April 30, 2014
- 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)
- April 29, 2014
- 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)
- April 28, 2014
- 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
Investigation of Impact on the Groundwater Bypass Regarding the Water Leak at Tank (Pump Well)
- April 30, 2014
- Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
- April 24, 2014
- Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
- April 23, 2014
- Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
Display and non-display of article in the past
Monitoring Regarding the Water Leak at Tank (Observation Hole around the H6 Area)
- April 30, 2014
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H6 area in Fukushima Daiichi Nuclear Power Station (Around the H6 Area)
- April 29, 2014
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H6 area in Fukushima Daiichi Nuclear Power Station (Around the H6 Area)
- April 28, 2014
- Sampling Results Regarding the Influence on the Water Leak at a Tank in the H6 area in Fukushima Daiichi Nuclear Power Station (Around the H6 Area)
Display and non-display of article in the past
Nuclide Analysis Results of the Underground Reservoirs
- April 30, 2014
- Tritium Analysis Results of the Underground Bypass (Investigation Holes/Pumping Well) and the Sea Side Observation Holes (As of April 21 and 22)
- April 30, 2014
- Nuclide Analysis Results of the Underground Reservoirs/Underground Bypass and the Sea Side Observation Holes (As of April 29)
- April 29, 2014
- Nuclide Analysis Results of the Underground Reservoirs/Underground Bypass and the Sea Side Observation Holes (As of April 28)
Display and non-display of article in the past
Other
- April 23, 2014
- 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
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Upper Part of Unit 1 Reactor Building
- Nuclides Analysis Result of the Radioactive Materials in the Air at the Ventilation facility of Unit 2 Reactor Building in 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
- 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
- Nuclide Analysis of the Radioactive Materials in the Fallouts obtained inside and outside of Fukushima Daiichi Nuclear Power Station
- April 18, 2014
- in the soil
- in the ocean soil off the coast
- Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear (Revised Version)
- April 17, 2014
- in the ocean soil off the coast (Dry Soil Rate : March 2014)
- April 16, 2014
- Seawater collected in offshore area of Miyagi Prefecture
- April 11, 2014
- Seawater collected in offshore area of Miyagi Prefecture
- April 9, 2014
- in the ocean soil off the coast
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.
- April 8, 2014
- For updated from March 1 to March 15
Seawater taken from Unit 1 to 4 side of South Discharge Channel (April, 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)
- April 18, 2014
- Measurement result nuclide of fish < Inner port in Fukushima Daiichi NPS >
- Nuclide 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.