Tables 1 and 2 represent the bone and bone marrow mean doses and ranges in mRem which were the result of ingesting 706-905 during the residency interval. These data were derived from measured urine activity concentrations during the uptake period. Constant continu- ous ingestion of activity was assumed in the models used to calculate the dose equivalents and dose equivalent commitments. Table 3 depicts the external dose equivalent resulting from living on Bikini Island. val varies The dose equivalent during the residency inter- for subgroups within the population according to the assumed living pattern selected. Since these values were obtained from ion chamber measurements and hypothetical living patterns, range of results has been provided. no In this report, one Roentgen is assumed equal to one Rem. Table 4 presents . 3 tion of t “Os. the average whole body doses 137 to the inges~ . . Data were derived from whole body counting measurments made in 1974, of due 1977 and 1978. . . Cs in the diet was not assumed. Constant continuous uptake . For these calculations, the . . . . . . 137 uptake period was divided into three intervals during which the Cs activity ingestion rate for a given interval remained constant, but increased stepwise with time to account for observed increases in 137 Cs body burdens. Table 5 summarizes . residency . period the total body dose equivalent during the . from internal 137 Cs to and man-made external radiation, and the total body dose equivalent commitment upon departure from Bikini Atoll in August 1978. A standard deviation for these quanti- 4 em gn g3