p 8 2 Table t Summary of Fallout Effects Group* Composition Rongelap 64 Marshallese Aulingnae Rongerik 18 Marshallese 28 Americans Utirik 157 Marshallese Estimated gamma Fallout observed dose, rads Heavy (snowlike) Extent of skin lesions 175 Moderate(mistlike) Moderate (mistlike) Extensive 69 78 None Less extensive Slight 14 Noskin lesions or epilation *Also exposed were 23 Japanese fishermen who received a sublethal dose. Table 2 Marshallese Populations Examined Since 1954 Original number Group Number in group living (1969) 67 56 157 127 99 180¢ Frequency of exams Subject Nos, Exposed Rongelap® Ailingnae> 19 Utirik 14 Annual Annual 1-86 1-86 3-4 years 2101-2257 Annual since 1957 801-1104 1500-1540 1000-1082 700-800 Unexposed Rongelap Rita Majuro 57 115 1955-1956 1954 only Children Conceived After the Fallout Of exposed parent(s) Of unexposed parents 89 110 Annual Annual 87-181 801-1104 1500-1540 @Includes 3 2n utero children. Includes | i utero child. *Individuals have been added since 1957 when this group was first available. team. In July 1957, after careful evaluation of radioactive contamination, Rongelap Island was considered safe for habitation. A new village was constructed, and the Rongelap people were moved there by Navy ship. (See frontispiece.) The annual surveys are carried out at Rongelap and aiso at Kwajalein and Majuro Atolls, where a number of Rongelap and Utirik people now reside. Examinations on Utirik Atoll are carried out aboutonceevery 3 years. A group of more than 100 Rongelap people, who weréwglatives of the exposed people but had been away I 3006259 the island at the time of the ac- cident, moved back with the exposed people to their home island and have served as an ideal comparison populationfor the studies. The number has since increased to >200. Since the accumulation of data from these surveys is becomingincreasingly voluminous, survey reports published by this Laboratory are made as complete as possible and include a considerable amount of raw data, muchof it in appendices, so that others may haveaccess to complete data. A summary of early andlate findings covering the entire 15-year period is presented at the end of this report.