QHas most of Japan been contaminated with radiation?
AThe area of relatively high radiation doses is limited; moreover, radiation doses are decreasing every year.

The area of relatively high radiation doses is limited - indeed they are low over most of Japan.

Aircraft monitoring for radioactive materials has been conducted both inside and outside of a 80-kilometer radius around TEPCO's Fukushima Daiichi Nuclear Power Station every year since the accident occurred. According to the findings, air dose rates are decreasing every year even in the area stretching northwest from the power station where levels are relatively high compared to other areas.

Incidentally, the metropolitan area of Tokyo, which is close to Fukushima Prefecture, has experienced no problems whatsoever regarding everyday life .