Radiation analysis results (sample: collected on April 4)
2011-04-13
Radioactive material measurement was performed on the samples (groundwater and injection needle) collected on 4/8 (Friday).
Results: No iodine or cesium was detected in groundwater or needles.
1.Groundwater
Measurement item Measurement result Lower limit of detection (Bq / Kg)
・ Radioiodine (I-131) not detected 10
・ Radioactive cesium
(Cs-134) Not detected 7
(Cs-136) Not detected 7
(Cs-137) Not detected 9
Analysis date: April 2011, 4
Analytical organization: Kaken Co., Ltd.
2.Needle
Measurement item Measurement result Lower limit of detection (Bq / Kg)
・ Radioiodine (I-131) not detected 9
・ Radioactive cesium
(Cs-134) Not detected 10
(Cs-136) Not detected 5
(Cs-137) Not detected 12
Analysis date: April 2011, 4
Analytical organization: Kaken Co., Ltd.
3.Spatial radiation rate Nasu district, Tochigi prefecture
2011 μSv / h (microsievert) As of April 4, 13 pm3:00
We will continue to monitor.
Results: No iodine or cesium was detected in groundwater or needles.
1.Groundwater
Measurement item Measurement result Lower limit of detection (Bq / Kg)
・ Radioiodine (I-131) not detected 10
・ Radioactive cesium
(Cs-134) Not detected 7
(Cs-136) Not detected 7
(Cs-137) Not detected 9
Analysis date: April 2011, 4
Analytical organization: Kaken Co., Ltd.
2.Needle
Measurement item Measurement result Lower limit of detection (Bq / Kg)
・ Radioiodine (I-131) not detected 9
・ Radioactive cesium
(Cs-134) Not detected 10
(Cs-136) Not detected 5
(Cs-137) Not detected 12
Analysis date: April 2011, 4
Analytical organization: Kaken Co., Ltd.
3.Spatial radiation rate Nasu district, Tochigi prefecture
2011 μSv / h (microsievert) As of April 4, 13 pm3:00
We will continue to monitor.