there were 3-4 references per person per week, equivalent to about one-third of the Pritchard estimate of 7-10 coconuts per person per week. Two senior Marshallese officials independently have made the following estimates from their experience on the outer atolls where there are no major — food distribution programs: less hag 939 coconut per day per person; from 0.5 to one coconut per day per person . The Bikini Council was asked to estimate coconut usage after resettlement but has not been heard from. In view of the foregoing, some judgement must be exercised in deciding on a likely “resettlement diet" for dose calculations. Since the trend of coconut consumption now is downward, and most estimates are no greater than the MLSC diet, this committee arbitrarily has decided to include a safety factor and use a "planning dose" that is 1.75 times the MLSC based dose used by the Lawrence Livermore group. 3.2 and Dose Estimates The 5 major radionuclides of Bikini Atoll are !37cs, 90sr, 239+240p,, Am. The internal dose, which is about 10 times the external one, is determined by the ingestion of these radionuclides via the diet or by inhalation, the fraction of the radionuclide intake absorbed from the gut and/or lungs, the location and duration of their stay in the body, the fraction of atoms decaying per unit time (i.e. rat Te yogi a half-life), and the energy of the emitted radiations (Table D.1 very low; the major exposure is via the food chaint I Inhalation doses are Thus the amount of locally grown foods in the diet and the radionuclide concentrations in these foods determines the quantities of radionuclides ingested. The amount of locally grown foods in the diet depends on whether or not imported foods are available (Tables D.3 and D.4). In current diet models some 80% of the predicted dose is the result of coconut consumption. For this report, the planning diet is considered as the case where local foods are always available and imported foods are available for 9 months of the year. A review of the LLNL sample collection, analytical results and dose assessment was conducted by an independent group of scientists. Their report confirmed the validity of the LLNL FF" of radionuclide concentrations in soil and foods and the estimated doses As discussed in Section 3.1, the precise diet of the Bikinians after resettlement, especially the coconut consumption, can only be approximated. Therefore, to provide a significant measure of conservatism, we have arbitrarily multiplied by 1.75 the radionuclide intakes est i ted from the MLSC diets used by the Lawrence Livermore Laboratory group » and.set out in Tables D.3 and 0.4, to calculate the "planning doses" used in this report. For Eneu, the 1987 daily intake of 137Cs would be 8700 pCi/d, for Bikini it would be 64,800 pCi/d. The intake of strontium would be less than 1.5 per. cent of these figures, and that of plutonium and americium less than 0.01%. The Federal daily and annual limits on intake of the pertinent radionuclides are given in Table 0.5. permissible, but not that for Bikini. The projected intake for Eneu is Thirty-year-dose factors are given in Table D.6, i.e., the constant by which to multiply the initial daily radionuclide intake (pCi/d) to obtain the 30-year cumulative dose (rem) given in Table D.7. Eneu at 4 rem falls within the 5-rem Federal standard, but Bikini at 30.8 rem does not. In these 9000108 D-3