val separating the BRAVO event and day of rehabitation and because of the shorter half life of 60a. term. The 1376, dose equivalent is important over the long It may bethe chief nuclide of concern during an individuals life time post rehabitation of a fallout contaminated environment. Statistical Analysis of Data In the cases of 1376, 6525 and 905-, a large set of individual adult values for k and P° were available in addition to a set of adult average values. The whole~body counting techniques and urine bioassay techniques employed were similar throughout the programs’ history. The short-term factors influencing the pattern of an individual's body burden, e.g. sickness, local diet changes, eating imported food, recent travel to uncontaminated areas, etc. were factors which influenced the pattern of adult average body burden throughout the entire residence interval. Therefore the ratio of the standard deviation to the adult average k’s and P°'s should have been equal to the same ratio for individual adult values. This was in fact the case for 137 64, 6555 and 905. The standard deviations and the adult average k's and P°'s for these nuclides were listed in Table 4. Tables of individual adult values were not reproduced here, however, individual body-burden data obtained in sequence are found in the references given in the introduction. These body burdens may be used with a fitting func- tion (Eq. 2) to generate individual adult, k's and P°'s. The standard deviations for adult average k's and P°'s were used to esti- mate the standard deviations for adult average committed effective dose equiva~ lents (see Table 4). Because the ratio of standard deviation to the average k and P° was the same for either adult average or individual adult k and P° data for 1376, ? 657m and 905, it was assumed to be true the standard deviations for the adult average k, P°, 17 for 600, and 3356, Thus, fifty-year cumulated intake