Carbon 14 in soil

[Joelle Key <jkey@mail.state.tn.us>]

I have been using the RESRAD model to look at various isotopes in soil.  I
am currently trying to look at carbon 14.  The model assumes that this is
an extremely mobile isotope (in the same category as tritium).  The
RESRAD manual says "the modeling for carbon-14 has evolved from
analyses of atmospheric sources and is not appropriate for ground
contamination sources."  Does anyone know of a model that is
appropriate for ground sources?  Are there any good discussions about
carbon 14 in soil?

Joelle Key
jkey@mail.state.tn.us