A month after the accident at Fukushima, the future is clear: there will be radiation problems 20 to 30 km around the nuclear plant for the foreseeable future.
So NHK World, here:
[A]nnual exposure in the zone is expected to be above 20 millisieverts. The worldwide average exposure from the natural environment is 2.4 millisieverts.
The expanded zone includes Katsurao Village, Namie Town, Iitate Village and some parts of Kawamata Town and Minami Soma City.
Was it worth it, Tokyo?
