Analysis of radiation level

          Food                                        Fallouts

1963     20,000 -100,000 mBq/kg            100 MBq/km2
1987        1,000  -20,000 mBq/kg              10 MBq/km2
2000               8         -70 mBq/kg                0.01 MBq/km2 (2002)
2011   more than 500,000 mBq/kg       6900 MBq/km2 in Tokyo
                                                                  0 MBq/km2 in Hiroshima