TABLE I TRANSPORT OF PLUTONIUM-—238 TO EDIBLE BOVINE PRODUCTS FOLLOWING INGESTION OF EITHER CITRATE-BUFFERED PLUTONIUM NITRATE OR PLUTONIUM DIOXIDE Approximate 8ty % of Dose Plutonium Dose % of Dose Secreted in Milk (Cumulative) Citrate 2.0 x 10 Buffered Plutonium 3juCi/animal 2 of Dose; of Milk at Peak Concentration [4.9 x 107 acute dose Time of Sacrifice 2 of Dose in Liver 2 animals [3.5 x 1073 sacrificed 93 days post- % of Dose/g of Liver % of Dose in Muscle (Skeletal) 3.7 x 10-7/2.0 x 10-3 Retained in Carcass Residue (Without Muscle and Liver) % of Dose/g of Muscle [6.7 x 10-9 2.6 x 1072 treatment _l. Plutonium 2,0 x 1075 Dioxide lmCi/animal fday for 19 |2,7 x 1077 consecutive days 2 animals [5.3 x 107% 5.3 x 1078|8.7 x 1075 [3.3 x 10719 1.4 x 1073 2 animals {6,2 x 107" 5.8 x 10°8/1.3 x 10 {3.4 x 10719 1,6 x 10-3 sacrificed 42 days post— treatment sacrificed 73 days posttreatment TABLE II TRANSPORT OF PLUTONIUM-238 TO EDIBLE BOVINE PRODUCTS FOLLOWING A SINGLE INTRAVENOUS INJECTION OF APPROXIMATELY 16 mCi CITRATE-BUFFERED PLUIONIUM NITRATE Approximate % of Dose 64 % of Dose/Z Time of Sacrifice 6 days postinjection (Cumulative) of Milk at Peak Concentration % of Dose in Liver % of Dose/g of Liver % of Dose in Muscle % of Dose/g of Muscle Retained in Carcass Residue (Without Muscle and Liver) 1.9 3.5 x 1072 33 2.5 x 1073 5.9 2.6 x 1075 55 1.7 2.5 x 1072 33 2.4 x 1073 3.3 1.0 x 1075 52 (2 cows) 13 days postinjection (2 cows)