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 (October, 2014)

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

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

October31, 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) (2)
October31, 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)
October30, 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)

October 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)
October 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)
October 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)

October 29, 2014	Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
October 25, 2014	Sampling Results of Pump Wells of the Groundwater Bypass at Fukushima Daiichi Nuclear Power Station
October 22, 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)

October 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)
October 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)
October 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

October 31, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
October 29, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System
October 28, 2014	Analysis Results of Rainwater Obtained Inside the Dike at the Tank Area After Treated by the Rainwater Treatment System

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Detailed Analysis Results of Groundwater Obtained around Unit 1 to 4

October 1, 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

October 31, 2014	Nuclide Analysis Results of the Underground Reservoir/Underground Reservoir Observation Holes (As of October 30)
October 30, 2014	Underground Reservoir Tritium Analysis Results (As of October 22)
October 30, 2014	Underground Reservoir Nuclide Analysis Results (As of October 29)

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Other

October 31, 2014	Analysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 30, 2014	Seawater collected in offshore area of Ibaraki PrefectureAnalysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 29, 2014	Nuclides Analysis Result of Unit 1discharge channel at Fukushima Daiichi NPSAnalysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 28, 2014	Seawater collected in offshore area of Miyagi PrefectureAnalysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 27, 2014	Analysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPSAnalysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
October 26, 2014	Analysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 25, 2014	Analysis Results of Underground Water around Unit 2 Reactor Building in Fukushima Daiichi NPS
October 24, 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 Exhaust Facility 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) 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
October 23, 2014	Seawater collected in offshore area of Ibaraki and Miyagi Prefecture
October 22, 2014	Summary of Marine Soil Monitoring Result : Fukushima Daiichi Nuclear Power Station (September, 2014)Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
October 21, 2014	Seawater collected in offshore area of Miyagi Prefecturein the soil
October 17, 2014	in the soilin the ocean soil off the coastAnalysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
October 12, 2014	Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
October 10, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
October 7, 2014	Seawater collected in offshore area of Ibaraki Prefecture Analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station
October 6, 2014	Sampling Results Regarding the Discharge of Groundwater Bypass at Fukushima Daiichi Nuclear Power Station (Around South Water Outlet)
October 3, 2014	Summary of Marine Soil Monitoring Result : Fukushima Daiichi Nuclear Power Station (August, 2014)
October 2, 2014	Results of weighted average sample of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station Detailed analysis results of temporary storage tanks for groundwater bypass at Fukushima Daiichi Nuclear Power Station 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.

October 24, 2014	Definite Results of Nuclides Analysis at Fukushima Daiichi Nuclear Power Station (Announced on September 16 - 30, 2014)
October 8, 2014	Definite Results of Nuclides Analysis at Fukushima Daiichi Nuclear Power Station (Announced on September 1 - 15, 2014)

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

October 17, 2014	Analyzed result of nuclide in 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 inside the port)