In message , The Natural
Philosopher writes
Grunff wrote:
Dave Liquorice wrote:
I guess most comes up from the ground, but what about walls made of
that nice cornish granite?
The reason suspended floors with a 'sump' arrangement work is
because radon is very heavy, and will collect at the lowest point -
even if it is coming from the walls.
Ah. I hadn't thought that through. It has to be heavy, being radioactive...
Not necessarily, Tritium isn't.
--
bof at bof dot me dot uk
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