Radiation dosage down 65% in 80-km zone of Fukushima nuke plant
3 February 2016
The central government’s Nuclear Regulation Authority (NRA) published on Feb. 2 a map depicting the distribution of radiation dosages as of last September in a region within an 80-kilometer radius of Tokyo Electric Power Co.’s crippled Fukushima Daiichi nuclear plant. The data, collected four years and a half after the 2011 nuclear accident there, represented a 65% decrease in the average midair dosage from comparable measurements taken seven months after the disaster. According to the NRA, the margin of decrease in the radioactivity level when considering the effect of physical attenuation of radioactive substances alone was 53%. The greater decline in actual dosages resulted from decontamination work and weathering, NRA officials said. Read original
(Fukushima Minpo News)