On March 21st 2011, radioactive materials were detected from the seawater 
around the discharge canal (south) of Fukushima Daiichi Nuclear Power 
Station which was damaged by the 2011 Tohoku-Taiheiyou-Oki Ocean 
Earthquake.
This is the result of the sampling survey of radioactive materials in the 
seawater which was implemented as a part of monitoring of surrounding 
environment.
TEPCO had informed the result to Nuclear and Industrial Safety Agency 
(NISA) and Fukushima prefecture. (previously announced)

On March 23rd 2011, we had conducted re-sampling survey in the wide range 
of area to examine the effect of radioactive materials in the seawater. 
TEPCO had informed the result to Nuclear and Industrial Safety Agency 
(NISA) and Fukushima prefecture as radioactive material were detected.
Details are as follows;

We will continue to conduct same kind of sampling survey.

attachment1:The result of seawater nuclide analysis 
            (Northern discharge canal of 2F ) (PDF 7.64KB) 
attachment2:The result of seawater nuclide analysis(2F Iwasawa Coast) 
            (PDF 7.74KB) 
attachment3:Seawater concentration of radioactive materials(PDF 15.2KB)