Wednesday 23rd March 2011
Fukushima 70 kilometre contamination levels twice as high as Chernobyl Permanent Control Zone.
Honshu should be evacuated. The IAEA website yesterday revealed beta-gamma contamination measurements taken between 35 and 68 km from Fukushima. The results ranged from 0.08 to 0.9 MegaBecquerels per square metre (MBq/m2). The Chernobyl Permanent Control Zone was contaminated up to 0.55 MBq/m2. The highest level of contamination classified after Chernobyl was greater than 1.48 MBq/m2. The data for Chernobyl were for Caesium and the same is probably true for the Fukushima data. All official agencies are conspicuously silent about the alpha-emitters Plutonium and Uranium. We remain deeply concerned about this lack of information.
Yesterday the US Environmental Protection Agency said a sampling filter in Hawaii had detected minuscule levels of an isotope that is also consistent with the Japanese nuclear incident. The filter was being sent for further analysis.
| How the fallout was distributed
The animation is a continuous loop showing the plume from Reactor 3 (MOX fuel) at hourly intervals from midnight 14 March to 3 a.m. 15th March. Fukushima is in the middle of the picture. To the right is the Pacific, left is inland. Tokyo is south-west of the wrecked reactors, under the plume in the final frames shown here.
Unidentified contaminant in Hawaii
Yesterday the US Environmental Protection Agency said a sampling filter in Hawaii had detected an isotope consistent with the Japanese nuclear incident. The filter was being sent for further analysis.
Cancer in Sweden following Chernobyl is a stark warning for Japan
A cautious but careful study [ref] in northern Sweden polluted by Caesium and Uranium fuel particles showed cancer increased by 11% in the ten years following the accident. The level of fallout in that part of Sweden was 0.1 MBq/m2. If we assume that cancer increases linearly with the level of fallout, the areas of Japan affected at 0.9 MBq/m2 may experience increases of 90%. We recommend that the public within 150km should leave the area immediately.
- Monitoring must be extended to all areas of Japan. Alpha-emitting radionuclides must be included and the data published.
- It is inevitable that the sea is seriously contaminated and will distribute the radioactivity to coastal dwellers for hundreds of kilometres through seafood and by inhalation of radionuclides resuspended by wave action and blown inland.
- Other nations must conduct thorough monitoring.
- The invalid ICRP risk model must be abandoned for estimating the effects of internal radioactivity. The model of the European Committee on Radiation Risk must be used.