9.8 + 0.5 x 10° 3 ? mCi/km”. We eagerly to adequately await completion of the soil analyses of test the applicability this model in its present form. Dose Assessment The 1O-, 30-, S0-, Bikini Atoll. and 70-year Samples collected dur- integral doses are listed in Table 6 ing January 1977 will indicate whether for consumption of Bikini cistern the present dose assessment based water and in Tables 7 and 8 for con- upon observed concentrations in June sumption of Bikini and Eneu ground- 1975 is acceptable or whether the water, 1975 concentrations might have been respectively. The doses are calculated using an average daily higher than normal due to possible intake of 2 litres of water and using contamination resulting from the a sum of the average radionuclide initial drilling operations. concentrations for the soluble and The resuits for the 30-year inte- particulate phases listed in Tables gral dose in the tables can be used 2, 4, and 5. for comparison and discussion. We have further assumed The that the only loss of radionuclides whole-body dose for all three water from the water is due to radioactive Sources is contributed almost entirely decay. by If the water concentrations L3fa For both cistern and increase with time relative to the groundwater 1975 concentrations or if they mately 4 decrease more rapidly marrow dose than Malo, and both 90. than assumed Ose contributes approxi- to 5 times more of the bone- {rom radioactive decay because of more and Iolo. are approximately rapid environmental turnover, of magnitude more significant then 239,240 the long-term integrated doses would be affected accordingly. port than Pu. The 30-year integral doses pre- Therefore, the dynamics of radionuclide two orders trans- dicted from consumption of Bikini in the groundwater reservoirs cistern water are 1.7 mrem for the and the mechanism of nuclide con- whole body and 11 tamination in the cistern water must marrow. be understood before final Long-term 0.5 rem for a member of dose evaluations can be made. tion, or 15 rem in 30 years. Fore, the whole-body and bone-marrow As was previously mentioned, we mrem for the bone The annual federal puide is the populaThere- doses resulting from consumption are continuing groundwater studies at ~18-