Many of us have discussed the thought that about 85% of the radon tests done in the United States are done as a result of real estate transactions. Do any of you out there have any real support for that (or a similar) statement.
I'd love to have a source for and a specific percentage if it is out there.
Some of the regulated states may have this information -I know that NJ does through their mandated reporting. I don't know if they can be reached in the current situation.