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Nuclides Analysis Result of the Radioactive Materials in the Seawater < Coast, Fukushima Daiichi Nuclear Power Station > North of Unit 5-6 Discharge Channel at Fukushima Around South Discharge Channel of Fukushima (Approx. 30m North of Unit 5-6 Discharge Channel) (Appox. 1.3km South of Unit 1-4 Discharge Channel) the Reactor Regulation (Bq/L) * The density specified by the Reactor Regulation is converted from Bq/cm3 to Bq/L.
* Data of other nuclides is under evaluation.
* In the case of more than 2 nuclides, the sum of scaling factors to density limits is compared to 1.
* "ND" indicates that the measurement result is below the detection limit.
I-131: Approx. 0.43Bq/L, Cs-134: Approx. 1.0Bq/L, Cs-137: Approx. 1.4Bq/L As the detection limit may vary depending on the detectors and sample properties, there are cases where nuclides below the detection limit are detected.
Nuclides Analysis Result of Radioactive Materials in the Seawater * The density specified by the Reactor Regulation is converted from Bq/cm3 to Bq/L.
* Radioactivity Density " " means "not applicable".
* In the case of more than 2 nuclides, the sum of scaling factors to density limits is compared to 1.
* Nuclide analysis results of I-131, Cs-134, Cs-137 and all βobtained at around South Discharge Channel were announced on November 13.
* When the measurement value is below the detection limit, "ND" is marked. The detection limits are as follows.
I-131: Approx. 0.48Bq/L, Cs-134: Approx. 1.1Bq/L, Cs-137: Approx. 1.3Bq/L, H-3: Approx. 3.0Bq/L, All α: Approx. 0.10Bq/L, All β: Approx. 26Bq/L, Sr-89: Approx. 0.1Bq/L As the detection limit may vary depending on the detectors and sample properties, there are cases where nuclides below the detection limit are detected.
* Nuclides analysis of Sr-89 and Sr-90 were done by Japan Chemical Analysis Center.
(Evaluation)Although Sr-90 was detected supposedly as a result of this accident, it is less than the density limit in the water which is specified by the announcement.
Nuclides Analysis Result of the Radioactive Materials in the Seawater < Offshore 1/2 > 15km Offshore of Fukushima Daiichi NPS (T-5) * The density specified by the Reactor Regulation is converted from Bq/cm3 to Bq/L.
* In the case of more than 2 nuclides, the sum of scaling factors to density limits is compared to 1.
* "ND" indicates that the measurement result is below the detection limit.
Cs-134: Approx.0.0014Bq/L As the detection limit may vary depending on the detectors and sample properties, there are cases where nuclides below the detection limit are detected.
* Analysis results by detail analysis (Phosphomolybdic acid ammonium adsorption sampling method) are noted.
* Analyzed by: THE GENERAL ENVIRONMENTAL TECHNOS Co., LTD.
Nuclides Analysis Result of the Radioactive Materials in the Seawater < Offshore 2/2 > * The density specified by the Reactor Regulation is converted from Bq/cm3 to Bq/L.
* In the case of more than 2 nuclides, the sum of scaling factors to density limits is compared to 1.
* Analysis results by detail analysis (Phosphomolybdic acid ammonium adsorption sampling method) are noted.
* Analyzed by: THE GENERAL ENVIRONMENTAL TECHNOS Co., LTD.
Radioactivity Density of the Seawater at 1F Units 5-6 North Discharge Channel (Bq/L) No sampling survey due to the bad weather on the following days: Radioactivity Density of the Seawater at 1F South Discharge Channel (Bq/L) No sampling survey due to the bad weather on the following days: January 14, 15, 16, 17, 23, 24 Sampling was conducted at around South Discharge Channel of Fukushima Daiichi NPS(appox. 330m south of Units 1-4 Discharge Channel) until November 25, 2012.
Radioactivity Density of the Seawater at 3km Offshore of Odaka Ward (T-14) Upper Layer (Bq/L) Radioactivity Density of the Seawater at 3km Offshore of Odaka Ward (T-14) Lower Layer (Bq/L) Radioactivity Density of the Seawater at 15km Offshore of Fukushima Daiichi NPS (T-5) Upper Layer (Bq/L) Radioactivity Density of the Seawater at 15km Offshore of Fukushima Daiichi NPS (T-5) Lower Layer (Bq/L) Radioactivity Density of the Seawater at 3km Offshore of Iwasawa Shore (T-11) Upper Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 3km Offshore of Iwasawa Shore (T-11) Lower Layer (Bq/L) Radioactivity Density of the Seawater at 15km Offshore of Iwasawa Shore (T-7) Upper Layer (Bq/L) Radioactivity Density of the Seawater at 15km Offshore of Iwasawa Shore (T-7) Lower Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 3km Offshore of Onahama Port (T-18) Upper Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 3km Offshore of Onahama Port (T-18) Lower Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 5km Offshore of Numanouchi (T-M10) Upper Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 5km Offshore of Numanouchi (T-M10) Lower Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 1km Offshore of Nida River (T-13-1) Upper Layer (Bq/L) Radioactivity Density of the Seawater at 1km Offshore of Nida River (T-13-1) Lower Layer (Bq/L) Radioactivity Density of the Seawater at 3km Offshore of Soma (T-22) Upper Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 3km Offshore of Soma (T-22) Lower Layer (Bq/L) Cs-134 Density: 60 Bq/LCs-137 Density: 90 Bq/L Radioactivity Density of the Seawater at 5km Offshore of Kashima (T-MA) Upper Layer (Bq/L) Radioactivity Density of the Seawater at 5km Offshore of Kashima (T-MA) Lower Layer (Bq/L)

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