On March 22nd 2011, as part of monitoring activity of the surrounding 
environment, we conducted nuclide analysis of radioactive materials 
contained in the air which were collected 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 and therefore, we summarized the results and 
reported them to Nuclear and Industry Safety Agency as well as to the 
government of Fukushima Prefecture.

Three nuclides (Iodine-131, Cesium-134 and Cesium-137) are released as 
fixed figures. Other nuclides figures are to be released as soon as 
identified under instruction of NISA.
                                                   (previously announced)

On April 9th 2011, we conducted nuclide analysis of radioactive 
materials contained in the air which were collected at the site of 
Fukushima Daiichi Nuclear Power Station on the same day. As a result, 
radioactive materials were detected as described in the exhibit. 
Accordingly, we have reported the result of analysis to Nuclear and 
Industrial Safety Agency and Fukushima Prefecture.

We are planning to conduct these surveys continuously. 

Appendix: The result of the nuclide analysis of radioactive materials in 
          the air at the site of Fukushima Daiichi Nuclear Power Station 
                                                            (PDF 10.9KB) 
Appendix: Fukushima Daiichi: the result of the dust nuclide analysis 
                                                            (PDF 34.4KB) 
Appendix: Fukushima Daini: the result of the dust nuclide analysis 
                                                            (PDF 13.1KB)