Re: RE: Radon equilibrium fraction in outdoor air

[Franz Schoenhofer <schoenho@via.at>]

At 12:14 07.02.2000 -0600, you wrote:
>Lew, Gert:
>
>NCRP Report 78 (section 6.3) provides an example of an "typical
environmental daughter activity ratio" of Rn-222/RaA/RaB/RaC equal to
1/0.9/0.7/0.7. If you converted to an equilibrium fraction, this would be
MUCH higher than 0.4. 


0.4 is regarded as the mean equilibrium factor in indoor air. 

Franz


Franz Schoenhofer
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A-1160 Vienna
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Tel.: +43-1-495 53 08
Fax.: same number
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e-mail: schoenho@via.at

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