On March 22nd 2011, as part of monitoring activity of the surrounding 
environment, we conducted nuclide analyses of radioactive materials 
contained in the air which were collected on March 20th and 21st 2011 
at the site of Fukushima Daiichi Nuclear Power Station, which was 
damaged by Tohoku-Chihou-Taiheiyo-Oki Earthquake. As a result, 
radioactive materials were detected as shown in the attachment. 
Therefore, we summarized the results and reported them to Nuclear and 
Industry Safety Agency as well as to the government of Fukushima 
Prefecture today.

We will continue the sampling survey same as this one. 

attachment:The result of the nuclide analysis of radioactive materials 
           in the air at the site of Fukushima Daini Nuclear Power Station 
           (PDF 19.6KB)