CONTENTS RaDIONUCLIDE BODY BURDEN EVALUATION ......0..000600 ccc cecceeeeecsceeteeeeetteeteeeseeenes 44 Tntrodction ......cccccccccccccc cece cee cee ceeceeeeecseeceteetecescnsene ceigeteseetesenssentesereseenecnaes 44 Estimation of the Internal Radiation Hazard... ree teee 45 Experimental Procedures.............0.0.c: ccc cece tierce cee rteet estat cetneciteenentenciey 45 Whole-Body Counting. ......0.0000 0 ccc cece eee cnet t tet teeta cne cates tneesatneteey 45 Analysis of Gamma-Ray Spectra... ccc ccc ete etter enttenties 47 Radiochemical Procedures..................:00cccceccceecccceceeeceeceten ete eueeceeceetaceeeneentenas 49 Results and Discussion... ......0...0..00ccccccecceeeee eee tee tect eetee ceneeeneseeeeeeteeteteuseneeneeeees 49 Environmental Estimate ......0000...000000cccescecceetee cereeeenee tet eeeeeeeetneseennetentens 49 Radiochemical Analysis of Urine.........000. cece cence tnerecneeeeeeteeenteesiens 51 Whole-Body Counting With the GammaSpectrometer........0..0.0. ce 53 SUMMARY AND CONCLUSIONS....00.000.cccccccceeeccecceteeceteeecneceneetcaeestcnsseneeeseeeneeeeesenetenets 55 Importance of Medical Surveys.....0.00..0000 cece cette tee reteset ceeesnnerneeee 58 ACKNOWLEDGMENTS..00.0.0.0ccccccccescevecececececeeecececetee Geeeeeeseesssesceecteeeeseteteseveceeeteeeeeveseenss 59 REFERENCES..oeoc0000cccccccccccsceseeceseceuccensueeevaeecaescesetecceccnceveseeesesecs sutseseesecstrtnresuttetees es 59 APPENDIX |}. Rongelap Blood Counts....00.000.00cc cece cece eects eee eneettenteneseteteeey 61 APPENDIX 2. Ailingnae Blood Counts...0...000.000. cece ces ececet eee etteeteetecaeeteeentens 62 APPENDIX 3. Hematological Findings, 1959.00... cece tte teens teeeeteties 63 APPENDIX 4. Hematological Findings, 1960.00.00... 0c ccc eeeetencnenterenees 68 APPENDIX 5. Individual WBC, Basophil, and Alkaline Phosphatase, 1959-1960.. 70 APPENDIX6. Blood Groupings and Haptoglobins, 1958-1959, and BFT and Cholesterol Levels, 1959. ....000000000.00occccceccccecseeeetscetec ees 74 APPENDIX 7. Cs'*" and Zn® Body Burdens....0.....00.0....0ccccceeceeecc ccc eeetee cece cetatenees 81 APPENDIX8. Urinary sroie cece cee c ee cee ee eneeeecciecneeteesaeteetnetersteeteneees 83 ADDENDUM. A Note on the Vegetation of the Northern Islets rom of Rongelap Atoll, Marshall Islands, March 1959.00... 85

Select target paragraph3