CONTENTS PREFACE 0.1... ccc cece cece nee n eee eeteerivaneneneeeun, ACKNOWLEDGMENTS 2... 0.0.00 cee cece eee e ee eeceeeeeeeeencns SUMMARY occ cece eee enbebeetbavbennveenes tit v 1X CHAPTER 1. INTRODUCTION AND SUMMARY OF CONCLUSIONS ............... Chronicle ........00 00000 cee ccc cee eee tveneeee. 1 1 The Long-range Risks... 0.2.0.0... 0c cece nee eee 2. 3 7 Air Burst 2.0.0... 0.0 ccc cece ence neecueennens Surface or Underground Burst ........00 0000000 ccc eee cess 11 20 DISTRIBUTION OF RADIOACTIVE DEBRIS ................00000--. Meteorology 60... cc cee cee ee eennteees Fallout Patterns 2.0.0.0... 0.00.0. c cece eee eeceueeteeuee 23 ORIGIN AND NATURE OF RADIOACTIVE DEBRIS .................. 3. 4. 11 23 26 Speculations as to the Existing Hazards ....................0. Recommendations for Future Study ..................0000085 33 35 Defining the Medical Problem ....................00000000. 37 Maximum Permissible Body Burden for Strontium 90 .......... 43 Summary and Conclusions ...........0.. 0000 cece eee eee 45 BIOMEDICAL CONSIDERATIONS .......... 0.0000 cc ccecccceuceee Calcium and Strontium Metabolism .................000 000008 Some Calculations ........00 00.0.0. c ee cece eevee 5. 2 Conclusions 2.00.0... cece cece teen vaeveeccecees Recommendations ........0..0 0.00 cee cee cece ue cee ceceenes SAMPLING AND RESEARCH PROGRAM ........... 00. ccc cueucceee The Sampling Program ..........0.... 00. ccc eee e eee Analysis for Strontium 90... 0.0... cece eee ee 37 38 44 47 47 58 APPENDIX I. Tr III. TV. V. HAZARD CALCULATIONS ......0.0.000 0.00 c cece cece ceeeuveuaes PARTICLE SIZE OF DEBRIS FROM THE ATOMIC BOMB ............ SETTLING OF PARTICLES IN A STANDARD ATMOSPHERE ........... INHALATION OF STRONTIUM 90 ©2000... . cc cccececcccccceus PHYSICAL CONSTANTS 1.000.000. ccc cc cceccescceucevecceaee xi 69 75 83 89 91