The radiation level at the location in Okuma-machi with 138 microsieverts/hour radiation at 1 meter off the ground is 201 microsieverts/hour at 1 centimeter.
The radiation level at the location in Futaba-machi with 368 microsieverts/hr radiation at 1 centimeter off the ground is only 63.8 microsieverts/hour at 1 meter.
The Ministry of Education and Science and the Ministry of Agriculture, Forestry and Fisheries have already announced their own surveys of soil contamination levels in Fukushima Prefecture, just as the national government is allowing the temporary return of residents whose homes are within the 3-kilometer radius from the plant.
Now, is somebody going to combine all three and create a map that shows air radiation and soil contamination of each location? (Just saying.)
METI's survey was done in July in the no-entry evacuation zone within the 20-kilometer radius and the planned evacuation zone outside the 20-kilometer radius.
From the METI press release on 9/1/2011 (Japanese only):
1. Air radiation levels at 1 meter off the ground:
2. Air radiation level at 1 centimeter off the ground:
The press release doesn't contain all the detailed data for each municipalities.