Contents | i | I Introduction. ©... ee | Preface and Acknowledgments Page qr ................. v Chapter I. External Gamma Radiation... 2... 2... 2... 1 Chapter II. Gross Activity 5 1 ' : A. Land Plants 2... 2... 2... ee 2... ee ee B. Marine Organisms and Birds... | 2... 2... 0... 5 YW OC. Soils... ee 18 D. Water. 2 ee ee 21 Chapter ITI. Radiochemical Analysis . . 2 2. 2.2. 2. Le 23 Chapter IV. Internal Contamination of Animals... ....... 33 Chapter V. Residual Activity in Pacific Ocean—Operation Troll . . . 39 Chapter VI. Return of Rongelapese 45 ............040. A. Medical Status of Rongelapese . . 2... 2.2... 2.2.00. 45 B. Medical Surveillance. . 2 2 2. 2. ee ee 48 C. Environmental Contamination .. 2... .....02045 48 1, External Gamma Dose Rates... 2... 2... 1. 49 2, Strontium-90. 2... ee 49 References... 2 2 0 1 ee ee ee 53 | m 427792-—57-———-2

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