Monitoring information
of environmental radioactivity level
NSR:Nuclear Regulation Authority


August 29,2014
Readings of dust sampling (April 1, 2013 - August 29, 2014)
August 29,2014
Readings of Accumulated Dose at Reading point out of 20 km Zone of TEPCO Fukushima Dai-ichi NPP (measured by glass badge dosimeter) (Monitoring Date: Jul 1, 2014 - Aug 5, 2014)
August 29,2014
Readings at Monitoring Post out of 20 Km Zone of Fukushima Dai-ichi NPP
August 29,2014
Readings of environmental radioactivity level by prefecture (Fallout)(Jul, 2014)
August 29,2014
Estimated and measured 1m height environmental radioactivity level at monitoring posts in 47 prefectures (Monitoring Date: Aug 28, 2014)


Recent sea area monitoring results

Monitoring plans

Monitoring results

Air dose rate

Integreted dose

Water Environment

Readings of dust, soil and environmental sampling

Database / Distribution map

Related Information


Radiation Monitoring Division
Tel : 03-5114-2125