Here's a reasonably good piece on radon in homes (from a real estate website). _http://www.bankrate.com/brm/news/real-estate/sep06_find_fix_radon_home_a1.asp _ (http://www.bankrate.com/brm/news/real-estate/sep06_find_fix_radon_home_a1.asp) Joel I. Cehn _joelc at alum.wpi.edu_ (mailto:joelc at alum.wpi.edu)