a Contents Introduction. ......... Preface and Acknowledgments . . Im . Vv Chapter I. External Gamma Radiation... .......2.2.2.. 1 Chapter J]. Gross Activity ............080- 2-848. 5 ............0. 0000 22 2, 5 B. Marine Organisms and Birds ..........2.2.2.2.. 11 C. Soils. 2... 18 D. Water... 1. 21 Chapter III. Radiochemical Analysis. . 2... 2... 2. ew, 23 Chapter IV. Internal Contamination of Animals .......... 33 Chapter V. Residual Activity in Pacific Ocean—Operation Troll . . . 39 Chapter VI. Return of Rongelapese 45 A. Land Plants ...... Page A. Medical Status of Rongelapese ...........2.22.2-. ©. ...... . 45 B. Medical Surveillance. . 2. 2... 2... we ee ee . 48 C. Environmental Contamination ... ... ....... 1, External Gamma Dose Rates. . . . . . 48 ee 49 2. Strontium-90. . 2... 2... es 49 References. . . 2... 2. eee ke ee 53 427792—-5T——-2 DOP ARCHIVES