On March 22, 2011, as a part of monitoring activity of the surrounding
environments, we conducted nuclide analyses of radioactive materials
contained in the air which was 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.
(Previously announced)
On July 12, 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, no radioactive
materials were detected as described in the appendix.
On June 27, 2011, we conducted nuclide analyses of plutonium contained in
the air. As a result, no plutonium was detected as described in the
appendix.
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 10.6KB)
Appendix2: Result of Nuclide Analysis of Plutonium in the Air at the Site
of Fukushima Daiichi Nuclear Power Station (PDF 8.62KB)
Appendix3: Fukushima Daiichi Nuclear Power Station Results of Dust Nuclide
Analysis (PDF 15.0KB)
Appendix4: Fukushima Daini Nuclear Power Station Results of Dust Nuclide
Analysis (PDF 14.2KB)