On March 22nd, 2011, as a part of monitoring activity of the surrounding
environments, we conducted nuclide analyses of radioactive materials
contained in the air which were collected at the site of Fukushima Daiichi
Nuclear Power Station, which was damaged by the
Tohoku-Chihou-Taiheiyou-Oki Earthquake. As a result, radioactive materials
were detected and therefore, we summarized the results and reported them
to Nuclear and Industry Safety Agency (NISA) as well as to the government
of Fukushima Prefecture.

The analyses results of the three nuclides (Iodine-131, Cesium-134 and
Cesium-137) are to be released as fixed figures, and the other nuclide
figures are to be revaluated in accordance with the preventive measures
formulated after the warning from NISA on April 1st.
                                                    (Previously announced)

On May 16th, 2011, we conducted nuclide analyses of radioactive materials
contained in the air which was collected at the site of Fukushima Daiichi
Nuclear Power Station on the same day. As a result, some radioactive
materials were detected as described in the exhibit. Accordingly, today we
have reported the result of the analyses to NISA and the government of
Fukushima Prefecture.

We will continuously conduct the same sampling surveys. 

Appendix1: Result of Nuclide Analysis of Radioactive Materials in the 
           Air at the Site of Fukushima Nuclear Power Stations 
                                                              (PDF 11.5KB) 
Appendix2: Fukushima Daiichi Nuclear Power Station: The Result of the 
           Dust Nuclide Analysis(PDF 13.6KB) 
Appendix3: Fukushima Daini Nuclear Power Station: The Result of the Dust 
           Nuclide Analysis(PDF 14.7KB)