Monitoring by sampling

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 (May, 2014)

Additional Sampling Results of Sub-drain Water on East Side of Incineration Workshop Building

May 31, 2014	Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building
May 30, 2014	Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building
May 29, 2014	Additional Sampling Results of Subdrained Water on East Side of Incineration Workshop Building

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

May 31, 2014	Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
May 30, 2014	Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
May 29, 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)

May 31, 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)
May 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)
May 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)

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Monitoring Regarding the Water Leak at Tank (Observation Hole around the H4 Area)

May 31, 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)
May 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)
May 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)

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Investigation of Impact on the Groundwater Bypass Regarding the Water Leak at Tank (Pump Well)

May 31, 2014	Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
May 27, 2014	Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
May 24, 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)

May 31, 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)
May 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)
May 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)

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Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System

May 30, 2014	Radioactive Material Density in the Air at the Place Where Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System is Sprinkled and Ambient Dose Rate at the Surrounding Area
May 30, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
May 21, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System

Detailed Analysis Results of Groundwater Obtained around Unit 1 to 4

May 22, 2014	Detailed Analysis Results of Groundwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
May 19, 2014	Detailed Analysis Results of Groundwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
May 17, 2014	Detailed Analysis Results of Groundwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station

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

May 31, 2014	Underground Reservoir Nuclide Analysis Results (As of May 30)
May 30, 2014	Underground Reservoir Observation Holes Nuclide Analysis Results (As of May 29)
May 29, 2014	Underground Reservoir Tritium Analysis Results (As of May 21)

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Other

May 30, 2014	Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
May 26, 2014	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 Nuclide Analysis Result of Radioactive Materials in the Air at the Upper Part of the Unit 4 Reactor Building of 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 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 Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
May 23, 2014	Sampling Results Regarding the Groudwater Bypass in Fukushima Daiichi Nuclear Power Station in the ocean soil off the coast (Dry Soil Rate : April 2014)
May 22, 2014	in the soil
May 21, 2014	Seawater collected in offshore area of Miyagi Prefecture
May 20, 2014	in the soil
May 14, 2014	Seawater collected in offshore area of Miyagi Prefecture Seawater collected in offshore area of Ibaraki Prefecture Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station

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.

May 23, 2014	For updated from April 16 to April 30
May 9, 2014	For updated from April 1 to April 15
May 2, 2014	For updated from March 16 to March 31

Seawater taken from Unit 1 to 4 side of South Discharge Channel (May, 2014)

Analysis Results of Water at Water Treatment Facility

May 30, 2014	Measurement results of radioactive density of water at water treatment facility
May 9, 2014	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)

May 16, 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)(Excluding the inner port area)