Radioactivity density of seawater (Appendix)
4-3-2-4 Radiation survey of environment
Reading of environmental radioactivity level by prefecture [13; 00 April 5, 2011]
Reading of environmental radioactivity level by prefecture [19; 00 April 5, 2011]
Reading of the radiation rate with the cooperation of universities [19; 00 April 5, 2011]
Reading of environmental radioactivity level by prefecture [13; 00 April 6, 2011]