Readings of environmental radiation level by emergency monitoring (Group 1) [December25, 2012] [published December26, 2012]
4-3-2-4 Radiation survey of environment
Readings of air dose rate in 20km zone of TEPCO Fukushima Daiichi Nuclear Power Plant [December 16～20, 2012] [published December 25, 2012]
Distribution map of radioactivity concentration in the seawater around TEPCO Fukushima Daiichi Nuclear Power Station (survey related to the leaked water from a pipeline between a desalination unit and a tank of concentrated water on April 5, 2012
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 15, 2011]
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 14～15, 16, 2011]
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 17, 2011]
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 18, 2011]
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 19, 2011]
(English version) Distribution map of radioactivity concentration in the seawater around Fukushima Daiichi Nuclear Power Station [Sampling Date; June 16～17, 20, 2011]