Grunff wrote:

Jeff wrote:

so imho its not a very good comparison as radon is a noble gas and
tritium
is a transitional isotope that will mainly be found as a liquid


I don't follow - and I'm not just being difficult - I genuinely don't
understand your argument. I'm not sure what point you are arguing against.


Liquids wash away.
Heavy liquids tend to end up on the sea floor. presumably.