Health Effects of Radiation:
5 Themes
Visiting

(i) Distribution of ambient dose rates in the area surrounding TEPCO's Fukushima Daiichi NPS site

Through the implementation of decontamination efforts and the passage of time, ambient dose rate values in the area surrounding TEPCO’s Fukushima Daiichi NPS site have decreased from the levels immediately after the accident.
With the exception of some areas where evacuation orders remain in effect, visitors can travel to Fukushima Prefecture.

Distribution of Ambient Dose Rates within the 80-km Zone of TEPCO's Fukushima Daiichi NPS

Distribution of Ambient Dose Rates within the 80-km Zone of TEPCO's Fukushima Daiichi NPS

In order to ascertain the changes in the effect of radioactive materials, an airborne monitoring survey is being conducted continuously within an 80-km radius from TEPCO’s Fukushima Daiichi NPS.

It was confirmed that ambient dose rates within the 80-km zone decreased over time both in areas showing higher dose rates (areas extending to the northwest of the NPS) and areas showing lower dose rates.

For more information about the distribution of ambient dose rates, see page 16 of Vol. 2, FY2017 edition.