Sa wi é. . (i.e. 1 day) compartment ranges from 0.02 to 0.22 with a-mean of 0.15; for the long term (i.e. mean value of 0.85. 115 day) compartment the range is 0.78 to 0.97 with a For both cases the maximum value is less than a factor of two greater than the mean. The 13’cs gama exposure data which is listed in table 2 shows that the maximum exposure rate observed at an isolated point on the island 1s for most islands less than a factor of three greater than the mean volume. In er many cases the maximum observed value is only 2 times the mean value. The 60¢5 data is more variable but it also accounts for a small portion of the external dose over 30 years. Previous evaluations indicate that dietary intake in a population is lognormally distributed. This would of course mean that x would include more than 50% of the population. We are currently evaluating the data in the Ujelang Dietary Survey to see if the distribution is lognormal and if so what fraction of the population would be included at two or three times the mean value. In an overall evaluation of the distribution of all of the input data, three times the mean value includes more’than 95% of the population; in som cases the maximum observed values were never as great as 3 x and closer to like 2%. Assuming the variables to be independent and thus combining in 4 linear fashion the low probability associated with values equal to or exceeding 3 x for each of these input parameters, would lead to an extremely small probability of all such events occurring for one person. In summary, the use of the mean value X for estimating the dose to people resettling at Enewetak Atoll provides dose estimates which includes more than half the population. Until a more thorough analysis can be - 48 - gum 3011121: “yf oan Hg Sr