One One Ten 2 3) 71 days 5.2 years 250 days " liver liver bone 8 liver 8" g " 23.~«W" blood blood " liver " 65 65 5 days (for man) organ Critical” 0.0015 0.02 0.06 0.0072 0.0001 0.005 0.0013 pe /m1 vec? >) (3) Kinsman, 1957 (4) NBS Handbook No. 52, 1953 (5) Lowman, 1957 and others er based on the assumption that water Maximum permissible concentration in drinking wat the only source of radioisotopic contami consumption is 2200 ml per day and that water is grams of food when compensation is made nation. Values can be directly extrapolated to ke of water and food for the difference between the daily inta (1) Hunter and Ballou , 1951 (2) Strominger et al, 1958 * ** 81 1.17* 1.12 .12* Bte.47 31 Bte,32 EC 270 days 45 days none 290 days 2, Biological 2.6 years Physical Half Lite! 84 Gamma »3) 0058 C960 7° EC EC Beta energy, Mev ) Radiation 1.1% 1 46% week month year years One Per cent abundance at! - continued Fe>? FeDD Mn344 products fission Non- Table 1. 3b