As shown on today's map from mext.go.jp/ here, air measurements continue to show values from 15 to 31 microsieverts per hour northwest of the crippled nuclear plants on the coast at four locations beyond the 20 km evacuation zone:
For comparison, note that Iitate, Japan, continues to post values quite a bit lower in the vicinity of 2.6 microsieverts per hour, but that normal values should be more like 0.11 in all areas.
