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 uranium analysis in the soil from the samples at the 2 out
of the 3 periodic sampling spots collected on June 6, uranium 234, 235 and
238 were detected as shown in the attachment 1.
In addition, since plutonium and uranium were detected as a result of the
analysis in the soil from the samples at the 3 periodic sampling spots
collected on May 16 and 23, americium and curium analysis in the soil was
conducted. As a result of the analysis, americium 241 and curium 242, 243
and 244 were detected as shown in the attachment 2.
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: Uranium analysis
result in the soil (PDF 8.92KB)
Attachment2: Fukushima Daiichi Nuclear Power Station: Am and Cm analysis
result in the soil (PDF 13.9KB)