福島第一原発事故時の周辺防災の失敗と 現行の原子力災害対策について
概要
The reactor core cooling was lost due to the attack of huge Tsunami and the reactor building was severely damaged by the hydrogen explosion at units of Fukushima Daiichi NPS. Significant amount of radioactivity was released to the environment and broader and longer evacuation of the general public in the vicinity of the NPS was carried out to the extent much more than expected by the former Nuclear Safety Commission. Coupled by the effects of earthquake and tsunami, considerable number of indirect disaster related death of hospital aged patients was caused during the long trip needed for evacuation, although the effect of radiation has not been recognized. Reactor safety has been significantly upgraded by the requirements of the current Nuclear Regulatory Agency and the emergency response would also be strengthened by the new procedures revised based on the lessons learned. Next interest exists in the consistency of the enhanced safety of NPS and the emergency preparedness off-site of the NPS.