Re: LNT models -Constancy of Radon levels over time??

["Ron L. Kathren" <rkathren@tricity.wsu.edu>]

Larry --

A number of years ago, a student of mine, with the aid of Bonneville Power
Administration, did a master's thesis study of specific homes in our area,
measuring radon levels for a full year prior to weatherization, and then
again for at least a full year postweatherization.  As I recall, this study,
which was never published, showed about a 30% increase in Rn concentration
after the homes were weatherized (ie 'tightened').

Ron Kathren


----- Original Message -----
From: Grimm, Lawrence <LGrimm@ADMIN.UCLA.EDU>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Sent: Wednesday, March 08, 2000 1:51 PM
Subject: RE: LNT models -Constancy of Radon levels over time??


> Perhaps Drs. Fields or Cohen can answer this:
>
> In an EPA training session for Radon, I saw a graph/study that indicated
> that it made no difference whether a house was energy efficient(tight
> construction) or inefficient (older, looser construction)with regards to
> Radon levels and all other factors being equal.  I carefully questioned
the
> instructor, because the EPA literature always indicates that Radon levels
> are higher in an energy effiecient home.  So which is it?  Is the EPA
> literature perpetuating a myth (my thoughts when the instructor insisted
the
> graph was accurate) or does it make a difference?
>
>         Larry Grimm
> UCLA Radiation Safety Division
> * On Campus: CHS A6-060 MS 957061
> * Off Campus: UCLA Radiation Safety Div, 2195 West Medical
> Building, Los Angeles, CA 90095-1764
> * lgrimm@admin.ucla.edu   Phone:310/206-0712   Fax 310/794-5825
> * If this email is not RSD business, the opinions are mine, not
> UCLA's.
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