Surveillance of Facilities and Sites Marsnail Islands Raciciegical Safety Program Greennouse, N, A., Levine, G. S. none itle: @ rh intrinsic germanium detector array to sented at she 2lst Annual Meeting of : Califormia, 14. r, QWe91-95-02 ad. W. and Naidu, J. R. ect councing of soil samples. aA china Pre- hn Physics Society, San Francisco, June 1976. Scooe: (a) 200 Word Summarv: Eavironmental and personnel monitecring programs for the Marsnallese peopie Living at Bikini, Rongelao and Vtirix atclis aust continue indefinitely in crcer to assess dose contributions to these pecple trom che residual radioactivity originally produced by U.S. nuclear weapons tests in the Pacific. Detailed assessments of the contributions of external gamma radiation have deen made over the past two years, but the idenscitication of internal exposure pathways and determination of their radiological significance are sudject to many variables which will require environmental and diet monitoring and bioassay programs for many years. The focal points of the next vear's efforts will be quantification of the average annual diet and ics radionuclide content of each atoll; determinacion of the significance of the inhala- tion pathway for slutonium and other radionuclides resuspended <rom local soils, and establishment cf urine excretion rates for plutonium, stroncium 90 and cesium 137 for individuals i= possible, and she averages for atoll sopulations. From these data, assessments of both external and internal doses and dos commitments will be made. In addition, projections of future radiclogical co ditions will be postulated in order to provide appropriate guidance on projected land use and living patterns. Earlier dose assessments will be revised and updated, and dosimetry models will be refined to reflect actual trends as determined from the monitoring program. Project personnel will provide a resource of expertise for estabdlishmenc of independent review of radiation protection programs associated with cleanuc and rehabilitation efforts in the northern Marshall Islands, and for related nealth physics interests of the Division of Safecv, Standards and Compl:ance,. 15. Relationship to Cther Projects: a. Field surveys will be made in close conjunction with those of the BNL Medical Survey Team, and assistance will be given to their efforts. b. Continued collaboration with the University of Washington, Laboratory for Radiation Ecology is anticipated in SSC-sponsored environmental programs in the Pacific Basin. 16. Technical Progress in FY 1977: During a field trip in September-October 1976, visits to Wotje, Ailuk, Utirik, Rongelap, and Bikini provided opportunities to collect urine sampies (See Continuation Sheet) BA-il4 ween —_ + oe eeee