TLE TITLE || ‘tlarshall islands Radiological - Safety Progean ' ! | CONTRACTOR NAME BUOGET ANO REPORTING CODE . HATO 2-)1-02-4) COOE | WP NUMBER | OAaTE PREPARED !1 03/31/80 TASK NO. i | REY. NO. Associated Universines, inc. cue, Approach cont. Dietary and living pattern information will be derived from direct observations of island residents, and from standardized interviews with island residents auring programmacic field trips. Managemenc Controls Fiscal control will be exercised in the form of monthly comparisons, over the cask term, of actual costs incurred against corresponding line items of the budget. Tecnnical results shall be monitored through a periodic review, by the Contractor Task Manager, of accomplishments by measuring actual performance as compared to expected progress. All work shall be conducted in conformance with generally accepted standards for R&D and orher invescigative or analytic procedures, as observed by universities and large independent researcn facilities including Srookhaven National Laboratory (BNL). -Jf. Technical Progress. Technical Progress in 8Y-3 (FY 1979), External and internal dose equivalents received during residency on Bikini 1Sland and internal dose equivalents to be received vost residency were evaluated ror former Bikini residencs., Bioassay results from samples collected in January and May 1979 and prior bioassay results were used to construct individual 70g 90 body burden histories. Whole body counting results during 1979 and results obtained in prior years were used to establish L37cg - 137mg, individual body burden histories. Daily activity ingestion rates were calculated from the body burden data. Uptake regimes which besc fit the activity ingestion crate data were; take for 137¢s. constant continuous uptake for 90Sr and stepwise increasing upo~ Dosimetric models which deseribed the uptake scenario were de- zived and individual dosimetric results for persons residing on Bikini Island somecime during the years 1969 and 1978 were determined. In addition, doses due to residual radioactivity in persons after departure from Bikini were calculated. In- ifvidual body burdens, urine activity concentrations and dose equivalents have been recorded or stored in a computer data base. Publications and reports describing _ sosimetric methods and results, whole body counting results and btological removal rate constancs for Bikinians have been written. Routine personnel monitoring was provided for Rongelap and Ucirik residents. A sCatistical analysis was performed to determine the minimum sample size needed to establish the mean !4/cs body burden at the 90% confidence level. Male and fe- male adult, adolescent and child categories were counted at each atoll and many 9ersons who participated in prtor whole body counting visits were recounted. In addition, urine bioassay samples were collected from adult and adolescent population groups. Body burden histories and dosimecric resules have been completed for nalf the resident populations for’ years following rehabitation of the arolls. A