relevant to the Eniwetok program is to emphasize the similarity in the environments and the expected lifestyles of the future iphabitants One —_ could elaborate on second-order differences as they exist or as they are to be expected, but it is most important to point out two major considerations: 1. Regarding the major pathways, evaluation can be based primarily upon the expected similarity which will exist in Lifestyle and habits between the returning Bikinians and Eniwetokese. The predominant protein source will be from marine fish, but, where possible, coconuts, pandanas, and arrowroot will be cultivated for food. constructed on the basis of the Rongalese diet, A diet can be as was done by Gustafson for Bikinians, and adjusted as indicated by information gained on the specifics of Eniwetok Atoll. 2, Serious contrast can be made, however, between Eniwetok Atoll and Bikini Atoll as regards the base radiological contamination, which is both larger for Eniwetok and compounded by the larger amounts of e395, and other transuranics. Thus, while we cannot yet speak of the relative importance of long-lived fission products, alpha radioactive elements, activation products, or it will be necessary to provide comprehensive assessment of the latter class of radionuclides in order to put these in perspective to the others. This will include assessment of both the in- halation and ingestion pathways. In brief, the assessment is organized around a pathway-dose two dimensional matrix, Radionuclide composition of dose transfer media such as foods, air, and water will be coupled with existing models of intake and metabolism to calculate potential dosages, taking into consideration the projected patterns of living of the future inhabitants, The major pathways under consideration are: 1. External Radiation 2, Internal Radiation 3. @, Terrestrial Foods b. Marine Foods ce. Water Inhalation, Submersion An understanding of the data base to be generated for these assessments can be obtained in the following sectizns of this program plan. It is our goal to provide all the data needed to order the relative importance of -8-