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