Gunma prefecture C-134 contamination up to 600,000 Bq/m2

The linked map shows the Cesium 134 contamination in Gunma prefecture just north of Tokyo. The color from the top to moss green shows the area got higher contamination level than so called contaminated area in Chernobyl which was 37,000 Bq/m2. Thus the dark and light brown color areas are OK. It seems if the government decide to use the same standard of the Chernobyl, the Gunma prefecture must give up more than half the land for residential area.

I'm sure you don't want to know about Tokyo or Chiba.