Although the news on Japan's Fuksuhima disaster is disappearing fast, the radiation levels remain very elevated in many of our cities, as evidenced in beta and gamma levels.
30 to 60 CPM for beta is "normal." The EPA advises emergency responders to take precautions at 4X background for beta and to check with a health physicist at 3 times background.
The EPA radnet samples are not taken at ground level. I wonder what accumulated levels are at ground?