We had to do another radon in the air test since the first go around we found one of the canisters turned upside down. Even so, one had a reading of 2 and the other was 9.4.
The second test was completed and the results were 12.5 and 12.7 with the EPA suggested limit of 4.0.
Interestingly enough the EPA has a risk chart for radon exposure. The chart skips from 10 to 20 making the risk 4-8 people out of a thousand that will develop lung cancer.
They equate these numbers to the statistics of other forms of death. The risk is still less than the chance of dying in a car crash or being killed in a violent crime.