Re: summer radon

[BRZGV@ccmail.ceco.com]

     During the summer your have more more weather patter changes would 
     would result in barometric pressure changes.  I would think the 
     barometric pressure may also change slightly with snow storm, but I'm 
     not sure if it is the same magnitude as a warm weather phenomena.
     
     How much would frozen ground affect the diffusion out of the soil?  
     Looks like a question for a civil eng.
     
     
     Dr. David Hintenlang at the University of Florida has done some in 
     depth radon studies with barometric pressure changes and soil 
     diffusion.
     
     352-392-1401 (U.F. Nuclear Eng. Dept.)
     
     
     Good Luck
     Glen Vickers


______________________________ Reply Separator _________________________________
Subject: summer radon
Author:  radsafe@romulus.ehs.uiuc.edu at INTERNET
Date:    6/27/96 1:54 PM


Dear Radsafe:
     
Radon concentrations(and daughter concentrtions) in OUTDOOR air 
fluctuate hourly, dialy etc. but most noticably from winter to 
summer.  What factor (s) are primarily responsible for the 
more significant seasonal fluctuations? From limited search of 
literature - my first guess would be pressure differentials 
(produced by temperature differences between soil and air) 
pulling soil gas out of soil more in summer than winter?
     
Thanks
     
D. Steva