- 7-+- recognized that decisions on land use involve consideration of predicted radiation doses which have inherent uncertainties. To make allowance for this, radiation criteria were chosen that are 50% of the annual Federal guidance for individual whole body and bone marrow doses and 80% of the 30-year whole body dose for population exposures, Therefore, the Enewetak criteria limits the dose to the whole body or the bone marrow of individuals to 250 mrem/yr and the dose to the average individual within the population to 4000 mrem/30 yr. (It should be noted that use of a percentage of the FRC values was not an attempt to establish new puidance, but was considered to be a necessary precaution in the application of the FRC values. The adoption of limits for Enewetak equal to one-half the FRC guide for individuals and 80 percent of the FRC guide for 30-year limits is a result "... of the uncertainty concerning dose estimates which depend greatly on the foods people will choose to eat and the way they will choose to live. 112 While dose estimates are to be compared to these percentages of the FRC guides, actual exposure levels monitored after the people return should be compared to the 100 percent values of the FRC guides. 1) CALCULATED DOSES LIVING IN ENEU The calculated doses”” for two assumed diets. 14 shown below are for three living patterns and The diets are based on the recent experience IIsee footnote 10, Vol. II., Sec. B, p. III-10. 12see footnote 10, Vol. I., Sec. 5, p. 5-7. l3see footnote 10, Vol. I., Sec. 5, p. 5-7 and Vol. II., Sec. B, p. III-1l. 14411 dose estimates are rounded off and are based upon information contained in "An Updated Radiological Dose Assessment of Eneu Island at Bikini Atoll," Robison, W. L. and Phillips, W. A., UCRL-52775, 1979, in draft.