CONTENTS RADIONUCLIDE BoDy BURDEN EVALUATION......0..00:c:ccceeceeeeeeseeeseeeaeeeneees tees aensesenenns 44 Introduction... cceccceececcceceseeecesesececeeceeceneecseeessaecnaecesaeseneneeneceseeesesasaaecesenneanes 44 Estimation of the Internal Radiation Hazard. ...........c.ceeecceeeecceeseee cree eeceeeenenes 45 "Experimental Procedures.............-:esc:::sscesseecseeceeeseeecoseeeeescireteseeeeseneaesaseeeseaeeeenss 45 Whole-Body Counting.............::ccscscecsesecesceeseesceceeneeceeeseaseneaasaeenssnsaesesnarseseens 45 Analysis of Gamma-Ray Spectra... cccccecec cece eeee cnet ereeceeeeeeserneneneaeeeees 47 Radiochemical Procedures...............::ccccescceeeeecccececeeeseteeseseeaneasansesaeeseeseneeeeenas 49 Results and Discussion. .............::cccccceeeececeecceeeceeeceesneceteceseaeeereneeseveneaeaspecguevesreesenes 49 Environmental Estimate..........0..cccccccceccceccecescseceeeeecececeeteseaaeeaneetectensnesneeeeetees . 49 Radiochemical Analysis of Urine... cece ccceeeceesc ete e tee ceeeueneseeeseaeeneneees 51 Whole-Body Counting With the Gamma Spectrometet.........0.....:0. ees 53 SUMMARY AND CONCLUSIONS. ....2...ccccecceeeeeeeeeeseeeeeseeeesnecessaeeenscestaaeeneneceesseees leteveeeeeees 55 Importance of Medical Surveys..........2...ccccccccceeeccceeseensecceeece senses seneeeeetesteesevseey 58 ACKNOWLEDGMENTS. 0.020. cccccccceeceeesetceceeceeceeseeeeeeeneeueeeeecsnsaaeeseseseeeeeeeseenetereenegsneiees 59 REFERENCES ooscoosssssorstesststnresnsecic,, DOE ARCHIVESbesten 39 ApPENDIX 1. Rongelap Blood Counts. ....0.......ccccccccccccccceccenceeee te eeeseeeeceeseeeseteesees 6] APPENDIX 2. Ailingnae Blood Counts.......00.0....cccccccccesnesscccseneeceeeceteeeeesecesnneseteeenees 62 AppeNpDIXx 3. Hematological Findings, 1959.00... ceccceeeeceeceseteeteenereeneceneenenes 63 APPENDIX 4. Hematological Findings, 1960.........0...0.020000.. weseee cee cueeeeeseceneneeetseeeees 68 Appenpix 9. Individual WBC, Basophil, and Alkaline Phosphatase, 1959-1960.. 70 APPENDIX 6. Blood Groupings and Haptoglobins, 1958-1959, and BFT and Cholesterol Levels, 1959.00.00... we ceecesceeaestescnsaeeeeeeess 74 APPENDIX 7. Cs’** and Zn® Body Burdens... o.oo cee ecececeeeeseeeensseseeceenaeensrersees 81 APPENDIX 8. Urinary or? cece eees scnaeececceccecesceesttsepecsnascseeseeseneaeeeeeeeeres 83 AppEeNpumM. A Note on the Vegetation of the Northern Islets of Rongelap Atoll, Marshall Islands, March 1959... eee v om eee oe ee 85