Re: Tritium and plastic

[xat@inel.gov (Alden Tschaeche)]

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 essentially 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