Source : NHK
https://www3.nhk.or.jp/nhkworld/english/news/20130827_19..html
Govt. : Radiation exposure goal met in many areas
Japan’s Environment Ministry says it has met its target to reduce radiation levels in a wide area from the Tohoku region to around Tokyo, thanks to decontamination work and the passage of time.
The ministry aimed to lower exposure in areas with radiation readings of under 20 millisieverts per year by 50 percent among adults and 60 percent among children by the end (...)