On Tue, 27 Nov 2007 18:07:33 -0500, "john"
wrote Re Radon / Basement
Cracks:

I finally got around to stripping my basement floors in preparation for
hardwood vinyl flooring. I also did this to try my best with filling in the
cracks to reduce my radon levels. My levels last year were around 4.0.. Now
their around 8.0. I understand that this may not reduce the levels
significantly, but its my last attempt before calling in the professionals.

Why wait? Money is not important when your family's health is at risk.
Go for the peace of mind.