i 4. “% t, “ . , r’ \ /’ Special In-vivo Counting and Bioassay Program for the Bikini People. Supplement to the BNL Marshall Islands Radiological GK-01-01-52-3 project Title: Safetv Program 13. Publications: Greenhouse, N.A. and Miltenberger, R.P. Radiological analyses of Marshall Islands environmental samples from 1974 through 1976. BNL Report I i 50796. I 1 Greenhouse, N.A. and Miltenberger, R.P. External radiation survey and dose predictions for Rongelap, Utirik, Rongerik, Ailuk, and Wotje Atolls. BNL Report 50797. (a) 200 Word Summary: A special field trip will be made in August 1978 to do in-vivo counting and urine bioassay at Kwajalein Atoll on 20 to 30 Bikini residents before their anticipated exodus from Bikini in late August. In addition, a separate field trip party will proceed to Bikini to c-ollect24 hr urine samples from those Bikini residents who cannot be accommodatedon the charter flight which will bring the in-vivo counting subjects to Kwajalein. The rationale for this effort is as ?%11ows: 137 Cs body burdens in the (1) Accurate internal dosimetry for Bikinians requires an assessment of extant body burdens just prior to the departure of the people from Bikini. ,, (2) There is evidence that both the short-term and long-term compartment 137c.sclearance rates from the Bikinians may differ significantly from those for the ICRP standard man. Determination of these parameters is essential to the accurate assessment of total dose commitments. (3) During the past several years the Bikinians have become apprehensive about potential health effects which they feel might result from their having lived in the contaminated Bikini environment. The personal attention that they will receive in these personnel monitoring activities should help to alleviate some of their fears. ’15. Relationship to other Projects: . This program is directly related to our on-going environmental and personnel monitoring efforts under the BNL Marshall Islands Radiological Safety Program. 16. Technical Proqress in 1978: Assessments parameters and. .the_detemination ..-—. — — .and . - clearance ..- of body ..burdens (See Continuation Sheet)