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 (September, 2014)

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

September 30, 2014	Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
September 29, 2014	Detailed Analysis Results in the Port of Fukushima Daiichi NPS, around Discharge Channel and Bank Protection
September 27, 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)

September 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)
September 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)
September 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)

September 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)
September 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)
September 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)

September 27, 2014	Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
September 24, 2014	Sampling Result of Pump Well No.12 of the Groundwater Bypass at Fukushima Daiichi NPS
September 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)

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

September 30, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
September 27, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
September 26, 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

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Detailed Analysis Results of Groundwater Obtained around Unit 1 to 4

September 16, 2014	Detailed Analysis Results of Groundwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
September 11, 2014	Detailed Analysis Results of Groundwater Obtained around Unit 1-4 Building at Fukushima Daiichi Nuclear Power Station
September 9, 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

September 30, 2014	Nuclide Analysis Results of the Underground Reservoirs/Underground Bypass and the Sea Side Observation Holes (As of September 29)
September 29, 2014	Underground Reservoir Nuclide Analysis Results (As of September 28)
September 28, 2014	Underground Reservoir Nuclide Analysis Results (As of September 27)

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Other

September 30, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 27, 2014	Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
September 25, 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 Upper Part of Unit 2 Reactor Building 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 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) Nuclide Analysis of the Radioactive Materials in the Fallouts obtained inside and outside of Fukushima Daiichi Nuclear Power Stationin the soilSampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 22, 2014	Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power StationSampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 19, 2014	Seawater collected in offshore area of Miyagi Prefecture
September 17, 2014	Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
September 16, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 12, 2014	Seawater collected in offshore area of Miyagi Prefecture
September 10, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 5, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
September 1, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet) Seawater collected in offshore area of Ibaraki Prefecture

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.

September 10, 2014	Definite Results of Nuclides Analysis at Fukushima Daiichi Nuclear Power Station (Announced on August 1 - 15, 2014)

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

Analysis Results of Water at Water Treatment Facility

The newest data is on May 30, 2014.

Analysis Results of Fish and Shellfish(The Ocean Area Within 20km Radius of Fukushima Daiichi NPS)

September 18, 2014	Nuclide Analysis Results of Fish and Shellfish (Inner port of Fukushima Daiichi Nuclear Power Station) Nuclide Analysis Results of Fish and Shellfish (The Ocean Area Within 20km Radius of Fukushima Daiichi NPS) (Excl. Inner port area)