: , D i} qiull BROOKHAVEN NATIONAL LABORATORY ASSOCIATED UNIVERSITIES, INC. Upton, New York 11973 4010146 safety & EnvironmentalProtection Division . (516) 345- 4207 July 23, 1979 Dr. Bruce Wacholz ASEV U. S. Department of Energy Washington, DC 20545 Dear Bruce: In accordance with your recent request, the following projection of the BNL Marshall Islands Radiological Safety Program (MIRSP) is submitted for your consideration. Program Description Personnel Monitoring Our highest priority activity for the present and foreseeable future is the measurement or estimation of doses and dose commitments incurred by the residents of the Pacific Islands which were immediately affected by fallout from U.S. atmospheric tests. We expect to accomplish this by programs of routine in vivo counting and urine bioassay, and by periodic monitoring of external radiation exposure rates. Records will be maintained of doses and dose commitments to individuals and of average dosimetric data for each island's population in order to demonstrate trends and to aid in the prediction of future doses. Individual dosimetry data will also be made available to DOE for ultimate dissemination to the affected individuals. Il. Diet and Living Pattern Study Experience has demonstrated that the most needed and least understood parameter in predicting population doses and trends is the local diet. In light of our observations of diet patterns at over 10 resident islands in the Marshalls, it is clear that there are significant differences in the diet from one location to another, and that dietary patterns are changing from year to year. Most of our future field trip plans will include observations of diet patterns and interviews with typical resident families in order to develop a dietary information data base which will be factored into predictive dose assessments in the Marshalls. Iil. Environmental Monitoring The Northern Marshall Islands Radiological Survey ("13 Atoll Survey") is expected to rigorously characterize the individual radionuclides in the terrestrial and marine environments. As a result of this survey and more