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Corporate Information

 
Press Release (Aug 17,2011)
Detection of radioactive materials in the soil in Fukushima Daiichi Nuclear Power Station (29th release)
 
As part of monitoring activity of the surrounding environment, we conducted 
an analysis of plutonium contained in the soil collected on March 21 and 22 
at the 5 spots in Fukushima Daiichi Nuclear Power Station. As a result, 
plutonium 238, 239 and 240 were detected.
                                                     (Previously announced)
 
As a result of plutonium analysis in the soil from the samples at the 3 
periodic sampling spots collected on August 1, plutonium 238, 239, and 240 
were detected as shown in the attachment 1.
 
In addition, as a result of nuclide analysis of the gamma ray contained in 
the soil, radioactive materials were detected as shown in the attachment 2.
 
And, as a result of uranium analysis in the soil from the samples at the 3 
periodic sampling spots collected on June 13 and 20, plutonium and uranium 
was detected. Therefore, we conducted further analysis for americium and 
curium in the soil. As a result, americium 241, curium 242, 243 and 244 
were detected as shown in the attachment 3 and 4.
 
Today, we informed the Nuclear and Industrial Safety Agency and the 
government of Fukushima Prefecture of the results.
 
We will continue conducting the similar analysis. 
Attachment 1: Fukushima Daiichi Nuclear Power Station: Plutonium analysis 
              result in the soil(PDF 13.7KB) 
Attachment 2: Result of gamma ray nuclide analysis of soil - Fukushima 
              Daiichi Nuclear Power Station(PDF 10.6KB) 
Attachment 3: Fukushima Daiichi Nuclear Power Station: Am and Cm analysis 
              result in the soil(June 13)(PDF 12.8KB) 
Attachment 4: Fukushima Daiichi Nuclear Power Station: Am and Cm analysis 
              result in the soil(June 20)(PDF 12.7KB) 
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