Basically, EPA radiation monitoring stations are recording massively elevated radiation readings compared to the norm, because at least in part, the norm as those background levels detected by a Digilert 100 Geiger counter. Problem is, the EPA stations are not operating Digilert 100 Geiger counters, nor anything close to that, and not all radiation detectors are created equal . True, a Digilert's normal background reading is about the 5 to 20 CPM that the author cites, but the normal readings for an EPA station are many multiples of that. Without going into detail, EPA stations use both larger and specialized radiation collectors , so really, the comparison to the Digilert is not as much apples and oranges, but more like watermelons to cherries . The "norm" for those EPA stations using whatever that number is based on the specific radiation detectors that they operate. P.S. While the reporting of EPA data is a good thing, yes, ...