AW: [ RadSafe ] Re: Residential radon risk

[Bernard Cohen]

Jan Skowronek wrote:

> In general, there is a strong negative correlation between UF and
>the ratio of WL/r (equilibrium factor), or .UF x WL/r  = K, another
>constant. 
>
>In case of radon progeny (in  mines, buildings and other closed areas) you
>have to take into account the plateout effect of radon propgeny on e.g.
>walls, engines etc. - it means that this equation is not valid.
>
>  
>
       ---Plate-out affects the ratio WL/r  making this ratio different 
in different arrangements of rooms (volume, surface areas). But in any 
given arrangement,  dust characteristics is an important factor and the 
relationship UF x WL/r = K is roughly valid.