We had been studying to implement sampling surveys on the ocean soil,
completed preparations and conducted the surveys on April 29, 2011. 
                                  (Previously announced on May 3, 2011)
 
We conducted a nuclide analysis of radioactive materials contained in the
ocean soil sampled on October 17. As a result, radioactive materials were
detected as shown in the attachment,
 
Today, we reported the results to NISA and the government of Fukushima
Prefecture.
 
We will continuously conduct the same sampling surveys. 

Attachment1: Nuclide analysis results of ocean soil (PDF 10.5KB) 
Attachment2: Radioactivity Density of Ocean Soil (PDF 15.3KB)