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 June 13, June 16, June 20 and June 23,
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.
In addition, as a result of strontium analysis in the soil from the samples
at the 3 periodic sampling spots collected on June 13, strontium 89 and 90
were detected as shown in the attachment 3.
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.
Attachment1: Fukushima Daiichi Nuclear Power Station: Plutnium analysis
result in the soil (PDF 13.0KB)
Attachment2: Result of gamma ray nuclide analysis of soil
- Fukushima Daiichi Nuclear Power Station (PDF 11.5KB)
Attachment3: Fukushima Daiichi Nuclear Power Station: Strontium analysis
result in the soil (PDF 10.8KB)