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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

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Result of radioactive nuclide analysis for the air sampled in the power station.

Seawater near Power Station

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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

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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

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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

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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)

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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

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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)

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)

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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)

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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

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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)

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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)

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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)

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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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