TOP > Monitored data on environmental radiation levels in Tokyo
 
Monitored data on environmental radiation levels in Tokyo
Monitoring site: Hyakunincho, Shinjuku-ku, Tokyo

   The Tokyo Metropolitan Institute of Public Health monitors environmental radiation levels year-round.
   In response to the accident at TEPCO's Fukushima Daiichi Nuclear Power Plant, we have posted the latest data on radiation levels on this website.
   Please be assured that the radiation levels monitored to date have no impact on health.

*Please note that we may not be able to update the data due to power outages
* Monitored data on environmental radiation levels / hour      * graph
* Past data on environmental radiation levels / hour - weekly summary
* Past data on environmental radiation levels / day
* Monitoring results of air dose rates at 1meter above the ground
* Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/22)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/21)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/20)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/19)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/18)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/17)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/16)
   Monitoring results of air dose rates at 5cm and 1meter above the ground all over Tokyo (2011/06/15)
* Radioactive material level in tap water / day
* Radioactive material level of fallout / day
* Explanation (in Japanese only)
* results of detection of radioactive material on foodstuffs which distributed in Tokyo / day in japanese only
 
Links:
* Reading of environmental radioactivity level by prefecture (Japan Ministry of Education, Culture, Sports, Science and Technology)
* Results of measurement of nuclear reaction product in dust in the atmosphere of Tokyo (TMG Bureau of Industrial and Labor Affairs) (in Japanese only)