RECOMMENDED GUIDES The dose limits issued by ICRP are recommended as the basic guidance for control of exposures to individuals at Eniwetok. This is recommended with provisos that: l. The full amount of the numerical values should not be used for allowable exposures from a single man-made source, in this case radioactivity iroin weapons tests. This is applied so that the Eniwetok people will not be denied benefits of future nuclear technology because they are receiving exposures from man-made radiation to levels of acceptable standards. Environmental and medical followup surveys and studies are performed such that the full range of radiation exposures of individual members of the Eniwetok population will be known. (ICRP) “does not contemplate measurement of individual exposures. ) 3. Exposures are kept as low as practical. SURVEY, CLEANUP AND REHABILITATION EVALUATION It is recommended in this context that: A limit of 50 percent of the ICRP dose limits for individuals be used. This assumes (because of the small population size and the planned medical and environmental followup) that the range of annual exposure levels for persons receiving the higher exposures will be known. Gonads, red bone marrow Skin, bone, thyroid Hand, and forearms; feet and ankles Other single organs The following values apply: 0.25 rem/yr ge 1.50 rem/yr (0.75) rem/yr, childrens thy roid 3.75 rem/yr 0.75 rem/yr A limit for gonadal exposure of the population be 5 rems in 30 years. This is based on the genetic dose coming primarily from 137 esium that has a radiological half-life of 30 years. Tee met tptiesg as os