viewed. Uosimetric models which best descripea the uptake regime were con- structed for the nuclides of interest. Daily activity ingestion rates, whole-body dose-equivalent rates and dose-equivalent commitments to various organs were determined. Population dosimetry results and methods were written up and reported in a BNL publication. Individual dosimetric records are maintained at the Laboratory. At the request of McCraw (DOEDHER), Lessard and Miltenberger analyzed former Bikini and Rongelap personnel monitoring data in order to estimate Cs-137 body burdens for the population who may return to Enue Island, Bikini Atoll. This projection involved a determination of activity transfer factors calculated from Rongelap and Bikini whole-body counting data and from activity concentration analyses of coconut tree products. These factors were comparable for both atolls and dose-equivalent commitments were projected for adults. In December, Naidu contacted Dr. Shinji Okano of Japan regarding an- alyses of the “Bikini Ash of Daigo-Fukuryumara”. Lessard, Miltenberger and Moorthy outlined a radiochemical separation/neutron fission radioassay techaique to be used on urine collected from Marshallese exposed to tropospheric weapons-test plutonium. Sondhaus (UCCM) visited Lessard to discuss his work related to acute phase dose reassessment for Rongelap and Utirik residents. Thiessen, the new Director of the Human Health and Assessments Division of the Department of Energy was appraised of the RUDR program's activities. 20 Also in