Dedicated to those friends who studied physics some 4o years ago and therefore believe they understand what is happening in Fukushima -:)
NYT Japan Held Nuclear Data, Leaving Evacuees in Peril
Professor Tatsuhiko Kodama of Tokyo University appears to be very angry :
Professor Tatsuhiko Kodama is the head of the Radioisotope Center at the University of Tokyo. On July 27, he appeared as a witness to give testimony to the Committee on Welfare and Labor in Japan’s Lower House in the Diet.
Org. videos with subtitles part 1/2:
Eventually even the official data reveals dangerously high levels of radiation.
Results of Greenpeace Radiation team independent monitoring of air, soil, and food in the vicinity of the Fukushima nuclear plant: Google Map
Radiation forecast data released
What radiation level is considered safe
1 rem = 0,01 Sv = 10 mSv
Dose equivalent H
The equivalent dose in an irradiated tissue or organ resulting from the absorbed dose by multiplying by a weighting factor (w R)  for the particular type of radiation. This takes into account the different biological effects, we of the various types of radiation. H = w R
The effective dose is obtained by summation of the weighted equivalent doses of each irradiated tissues and organs. The weighting factors (w T)  take into account the difference in radiation sensitivity of different organs in relation to the risk of cancer and genetic changes. An even-even exposure of the whole body or individual organs is at the same effective dose of the same radiation risk. E = S Tx w T H T