Re: EPA Action Level for Radon -Reply

[EPIRAD@aol.com]

The following book provides the most comprehensive discription, I have seen, 
of the origin of the 4 pCi/L action level.
 
Radon's Deadly Daughters : Science, Environmental Policy, and the Politics of 
Risk by Michael R. Edelstein, William J. Makofske.  It is available via 
Amazon.com.

Bill Field

College of Public Health
University of Iowa
mailto: bill-field@uiowa.edu
           
 
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