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RE: Radon and Smoking
-----Original Message-----
From: Field, R. William [mailto:bill-field@UIOWA.EDU]
Sent: Tue 12-Feb-02 4:32 PM
To: RuthWeiner@aol.com
Cc:
Subject: Re: Radon and Smoking
It is the alpha emissions from the daughters. I do agree that cumulative radon exposure is what you should look at. There you are including both time and concentration to obtain exposure.
Bill
Bill, If you think so, does your study address this? But animal/biology data shows radon effects are primarily dose rate dependent (e.g, Monchaux and others). Below a threshold dose rate, for the same dose there is no dose effect (as with environmental radon).
Regards, Jim
==========
At 03:46 PM 2/12/2002 -0500, you wrote:
Here is another consideration: if it is either the alphas or the daughter emissions, or both, that are effective in radon health effects, would CUMULATIVE radon exposure be the factor to look at, rather than some kind of average or median? Averages, it seems to me, are too dependent on ventilation, time spent in various parts of the house, and similar undocumented variables to be reliable indicators of radon exposure.
Ruth Weiner, Ph. D.
ruthweiner@aol.com
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