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Re: Tritium and plastic
Right, but 450 is an instantaneous LET dose. Somebody must have given animals
a high H-3 dose? (Is a "dose-rate" factor of 2 justified?)
Regards, Jim
> JMUCKERHEIDE@delphi.com wrote:
>
> > Al, Wes, all,
>
> > Based on? what is the animal data?
>
> > Regards, Jim Muckerheide
> > jmuckerheide@delphi.com
>
> > > Wesley M. Dunn wrote:
>
> > > > Well, taking the LD 50/30 as approximately 450 rem (Whole Body Acute
> > > > Dose -- probably reasonable with THO with an effective 1/2 life of
> > > > about 10 days):
>
> > > > ALI (Oral; THO) = 80 mCi = 5 rem
>
> > > > LD 50/30 ~7 Ci (single intake)
> > > I have used 8 Ci (single intake) as a lethal dose (e.g. LD 50/30). So we es
> sentially agree. Al Tschaeche xat@inel.gov
>
> There are no data that I know of. The 8 curies is only based on a
> calculation that says: if you have a one time intake of 8 curies of
> tritium as tritiated water, you will receive a committed effective dose
> equivalent of 450 rem. The 450 rem is just one of a bunch of numbers
> that run from 300 to 600 rem that various people have used as the lethal
> dose in 30 days to 50% of the population receiving that dose. Al
> xat@inel.gov