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Press Release (Apr 22,2011)
Detection of radioactive materials in the soil in Fukushima Daiichi Nuclear Power Station (4th release)
 
As part of monitoring activity of the surrounding environment, we
conducted an analysis of plutonium contained in the soil collected on
March 21st and 22nd at the 5 spots in Fukushima Daiichi Nuclear Power
Station. As a result, plutonium 238, 239 and 240 were detected. 
(previously announced)

As the result of the plutonium analysis in the soil from the sample from
the 3 periodic sampling spots on April 7th and 11th, plutonium 238, 239
and 240 were detected as shown in Attachment 1. In addition, as the result
of gamma ray nuclide analysis from the same sample, radioactive materials
were detected as shown in Attachment 2.

Besides, as the result of uranium analysis in the soil from the sample
from the 3 periodic sampling spots on April 11th, the same level of
uranium 234, 235 and 238 as the natural level were detected as shown in
Attachment 3.

We have reported the results of analyses to the Nuclear and Industrial
Safety Agency and the government of Fukushima Prefecture.

We will continue to conduct the similar analyses. 
Attachment1:Fukushima Daiichi Nuclear Power Station: Plutonium analysis 
            result in the soil (PDF 13.2KB) 
Attachment2:Result of gamma ray nuclide analysis of soil (PDF 11.0KB) 
Attachment3:Fukushima Daiichi Nuclear Power Station: Uranium analysis 
            result in the s (PDF 14.0KB) 
appendix:Fukushima Daiichi NPS  Soil Sampling Spots (3 periodic sampling 
         spots) (PDF 184KB) 
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