maps

I have heard increasing criticisms over the last few years that the EPA radon potential maps are not as accurate (in predicting areas with increased potential for radon exposure) as state collected screening measurement data. Has anyone performed any detailed comparisons within their state? I am particularly interested in comparisons performed in the Midwest.

Regards,
Bill Field

Friday, January 9th 2009. We will soon be forming a workgroup to look at the EPA Zone Map and the existing state radon maps. I expect that the workgroup will be comprised of representatives from the EPA HQ radon team, EPA regional staff, individual states, CRCPD, AARST and possibly others. I would like to keep the workgroup relatively small (e.g., 12-15 people) presuming that the representatives will commit to communicating effectively with those they represent and with the workgroup.