Reading of environmental radioactivity level by prefecture [19; 00 March 21, 2011]
4-3-2-4 Radiation survey of environment
Reading of environmental radioactivity level by prefecture [13; 00 March 22, 2011]
Reading of environmental radioactivity level by prefecture [19; 00 March 22, 2011]
Reading of environmental radioactivity level by prefecture [13; 00 March 23, 2011]
Reading of environmental radioactivity level by prefecture [19; 00 March 23, 2011]