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Decommissioning Plan of Fukushima Daiichi Nuclear Power > Plan & Action > Monitoring by sampling

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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.

Analysis results of radioactive materials obtained at each sampling location

map
1.Seawater(Area around the Outside of the Port) 2.Seawater(Inside of the Port) 3.Seawater(Inside of Unit 1-4 Water Intake Channel) 4.Groundwater(Unit 1-4 Bank Protection) 5.Groundwater Obtained around the H4 area 6.Obtained in Drainage Channels around the H4 area and the B area

Related Links
Monitoring information of environmental radioactivity level (the Nuclear Regulation Authority)

Prompt Report of Result of Analysis (April, 2014)

The day colored dates in this calender indicate the latest updated dates.

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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CSV
Coast
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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CSV
Around water intake channel
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 West Side of Incineration Workshop Building

April 17, 2014
Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (1)
April 16, 2014
Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (2)
April 16, 2014
Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (1)
April 15, 2014
Additional Sampling Results of Subdrained Water on West Side of Incineration Workshop Building (2)

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Monitoring at the East Side of Unit 1-4 Turbine Buildings

April 16, 2014
Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
April 15, 2014
Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
April 14, 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 17, 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 16, 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 15, 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 17, 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 16, 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 15, 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 17, 2014
Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
April 10, 2014
Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Pump Well)
April 3, 2014
Sampling Results Regarding the Influence on the Water Leak at a Tank in the H4 area in Fukushima Daiichi Nuclear Power Station (Pump Well)

Monitoring Regarding the Water Leak at Tank (Observation Hole around the H6 Area)

April 17, 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 16, 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 15, 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 17, 2014
Underground Reservoir Tritium Analysis Results (As of April 9)
April 17, 2014
Underground Reservoir Nuclide Analysis Results (As of April 16)
April 16, 2014
Tritium Analysis Results of the Underground Bypass (Investigation Holes/Pumping Well) and the Sea Side Observation Holes (As of April 7 and 8)

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Other

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)

The day colored dates in this calender indicate the latest updated dates.

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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.)

Archives

* Please click here for the archives from Dec 23, 2011 to Mar 31, 2014.
* Please click here for the archives before Dec 22, 2011.