Table 1 Summarv of Fallout Effects Group* Composition Rongelap Ailingnae Rongerik Uurik 6+ [8 28 157 Marshallese Marshallese Americans Marshallese Fallout observed Estimated gamma dose, rads Extentof skin lesions Heavy (snowlike) Moderate (mistlike) Moderate ( mistlike) None 175 69 78 14 Extensive Less extensive Slight No skin lesions or epilation * Also exposed were 23 Japanese fishermen whoreceived a sublethal dose. Table 2 Marshallese Populations Examined Since 1954 Group Original number in group Number living (1969) Frequency of exams Subject Nos. Exposed Rongelap# Ailingnae> . Utirik 67 19 36 14 157 127 99 180¢ Annual Annual 3-4 vears 1-86 1-86 2101-2257 Unexposed Rongelap . Rita Majuro 57 1t5 Annual since 1957 1955-1956 1954 only BO1-1104 1500-1540 1000-1082 700-800 Children Conceived After the Fallout Of exposed parent(s) Of unexposed parents 89 110 Annual Annual 87-181 801-1104 1500-1540 4lncludes 3 zn utero children. bIncludes 1 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 also at Kwajalein and MajuroAtolls, where a number of Rongelap and Utirik people now reside. Examinations on Utirik Atoll are carried out about once every 3 years. A group of more than 100 Rongelap people, whowere relatives of the exposed people but had been away from theisland at the time of the ac- cident, moved back with the exposed people to their home island and have served as an ideal comparison population for the studies. The number has since increased to > 200. - Since the accumulationof data from these surveys is becoming Increasingly voluminous, survey reports published by this Laboratory are made as complete as possible and include a considerable amount of raw data, muchofit in appendices, so that others may have access to complete data. A summary of early and late findings covering the entire 15-year period is presented at the end of this report. LO