Low Dose Radiation and No Health Risk in Fukushima in Contrast to Chernobyl

Abstract

Radiation hygiene survey has been conducted in the East Japan earthquake area, about Fukushima Dai-Ichi nuclear power station disaster caused by tsunami on March 11, 2011. Our surveys revealed that a public annual dose was 10 mSv following the disaster and health hazards should not be concluded by the methods of in situ dose evaluation. This study has been focused on internal dosimetries of iodine-131 in thyroid and of cesium-134, 137 in whole body. Further, we continuously have been studying radiation hygiene on cattle livestock in Namie town located within 20 km zone around the Fukushima Daiichi nuclear power station, and found no problem for the recovery.