[ RadSafe ] Plutonium with High Concentrations Hazards Summary (Draft Number One).

[James Salsman]

> The solubility product constant for Pu(IV) is about 
> 0.00000000000000000000000000000000000000000000000001....

"From our investigations of gastrointestinal absorption, 
... the fraction [of Pu dissolved in natural waters as 
Pu(IV) and Pu(V)] transferred from the gut to blood is 
surely greater than 0.001 and may be as high as 0.2." 
-- R.P. Larsen, et al., "Plutonium:  Its Behavior in 
Natural Water Systems and Assimilation by Man," Health
Physics, vol. 44, supp. 1 (1983) pp. 485-492.

Sincerely,
James