Tables 1 iind2 represent the bone and bone marrow mean doses and ranges in mRcm which were the result of ingesting the residency interval. activity Y during These data were derived from measured urine activity concentrations during the uptake period. ous ingestion of 90~r-90 was Constant continu- assumed in the models used to calculate the dose equivalents and dose equivalent commitments. Table 3 depicts the external dose equivalent resulting from li.vi.ngon Biki,ni.Island. al The dose equivalent during the residency interv- varies 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, no range of results has been provided. In Ehis report, one Roentgen is assumed equal to one Rem. Table 4 presents the average whole body doses due to the ingestion of 137C3 . Data were derived from whole body counting measurements made in 197/+, 1977 and 1978. of 1.37 Cs in the diet was not assumed. Constant continuous uptake For Lhcse calculations, the uptake period was divided into three intervals durin~ which the 137CS activity ingestion rate for a given interval remained constant, but increased stepwise with time to accou~lt for observed i,ncreascs in 137 Cs body burdens. Table 5 summarizes the Eotal body dose equivalent during the 137 residency period from internal Cs and man-made external radiation, and the total body dose equivalent commitment upon departure from Bikini Atoll in AuGust 1978. A s~andarcl 4 deviation for these quanti-