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 March 31st and April 4th, 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 2 spots out of 3 periodic sampling spots on March 28th, the same
level of uranium 234, 235 and 238 as the natural level were detected as
shown in Attachment 3.

Furthermore, as the result of plutonium analysis in the air from the
sample taken in the Fukushima Daiichi Nuclear Power Station on March 28th
and 29th, plutonium 238, 239 and 240 were not detected as shown in
Attachment 4.

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 12.2KB) 
Attachment2:Result of gamma ray nuclide analysis of soil(PDF 11.1KB) 
Attachment3:Fukushima Daiichi Nuclear Power Station: Uranium analysis 
            result in the soil (PDF 14.1KB) 
Attachment4:Fukushima Daiichi Nuclear Power Station: Plutonium result in 
            the atmosphere (PDF 30.5KB) 
appendix:Fukushima Daiichi NPS  Soil Sampling Spots (3 periodic sampling 
         spots) (PDF 183KB)