CONTENTS ACKNOWLEDG EMENTS TLLUSTRA TIONS e ABSTRACT e e e Page e 7 e e ci oe os a e . e > e os oe e e e e e ee e e * iv cy e e e e e . = e s es J e e oo . e es a e ¢ cd » e s Vv « ca e . e e e e a e e e e » e » »s » e . e e eo e vi CHAPTER 1 INTRODUCTION . 2. 1. 2 2 2 we we we we ew we et we we 1 CHAPTER CASTLE s ° e e * o ° e 5 2 . eo * es 7 o ° 2.1 Bravo. ..s ese cere eee eee 2. Romeo e 2.3 Koon. 2 . h Union 2 2 . 5 2.6 CHAPTER 3 TESTS s eo e e ry s e cf ° ° . Yankee > © @© Nectar. . © e * e . e ° e ee # e«# oe ee © «© # @ mm @ oe e e «@ e . e e e e ° eo e* e ° co e * e e e e e ° «oe © © 2... ee we et we ee ee we «~ e 8 e e 9 rf e e sae oe oo e 12 #@ © 12 ee DY fComearison With Total Beta Yield. .....-+Meteorological Interpretation. .......6. 3.5 Waximum Activity at Individual Stations REFERENCES e eee sve o ee e Castle Total. 2... ww we tt wt te ww ww ffotals for Individual Tests ..... wee ee 3.3 3. CHAPTER APPENDIX A e a WORLD-WIDE FALLOUT . 3.1 3.2 ° ¢ e 4 @ IY 193 23 33 3. SPECIAL OBSERVATIONS . 2... ee eee ee ee es MAPS OF DAILY FALLOUT, 2.6 1 2 eee ee ee eee 3B B * 226 @ * @ «© © © © # @® @ @ @ #@ #@® # @© @ @* © 8© ® @ @ © 8 ACKNOWLEDGEMENTS The work reparted on here was performed under the direction of Dr, Lester Machta, Services Division, was established by Operations Office, Chief, Scecial Projects Section, Scientific U. S, Weather Bureau. The monitoring orogram the Health and Safety Laboratory, New York Atomic Energy Commission, Merril Eisenbud, Director, and that office provided the radiological data, Mr. Daniel E, Lynch of the Health and Safety Laboratory served as coordinator of the program. Many helpful suggestions were received from colleagues in the Special Projects Section, D, Lee Harris, Kenneth M. Nagler, Francis Pooler, Jr., and Leo R. Quenneville. The staff of this section performed the laborious and painstaxing plotting of data and prepara~ tion of the finished manuscript. -ive-

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