
distribution and consumption began on March 21st. Fish contaminated
with radioiodines were detected on March 21st; provisional regulation
values for radiodines in seafood, adapted from that in vegetables,
were set on April 5th. Overall, restrictions started within 25 days after
provisional radiocontamination values were exceeded in food and
drink (Hamada and Ogino 2011).
Survival time of humans after acute exposure to a whole body dose
of 100,000 mSv gamma radiation is about 100 hours, with hematopoietic
depression the most sensitive indicator of radiation stress, followed by
GI tract denudation, then central nervous system disruption (Figur ...