Our radon risk page (created jointly with Phil Price of the Indoor Environment Division, Lawrence Berkeley National Laboratory), is fully functional again.

You can now go over to the map, click on your state and then your county, give information about your house, give your risk tolerance (or use the default value), and get a picture of the distribution of radon levels in houses like yours. You also get an estimate of the dollar costs and lives saved from four different decision options along with a decision recommendation. (Here’s an example of the output.)

We estimate that if all homeowners in the U.S. followed the instructions on this page, there would be a net savings of about $10 billion (with no additional loss of life) compared to what would happen if everybody followed the EPA’s recommendation.