Table 1 Summary of Fallout Effects Group* Composition Fallout observed mgeLap 64 Marshallese Heavy (snowlike) linginae 18 Marshallese Moderate (mistlike) ngerik 28 Americans Moderate (mistlike) irik 157 Marshallese None SC Estimated gamma Extent ‘of dose, rads : skin lesions 175 ; , Extensive 69 Less extensive 78 Slight 14 No skin lesions or epilation Lso exposed were 23 Japanese fishermen who received a sublethal dose. During this period vigorous efforts were necessary to decontaminate the skin completely. In view of the generally negative findings on the American servicemen, they were later returned to their duty stations. The Utirik people were also allowed to return to their home island, where radioactive contamination was slight enough to allow safe habitation. Because Rongelap Atoll was considered to be too highly contaminated, a temporary village was constructed for the Rongelap people (including the 18 from Ailinginae) on Majuro Atoll several hundeed miles to the south, where they lived for the following 3-1/2 years and were examined at yearly intervals by a special medical team. In July 1957, after careful evaluation of radioactive contamination, Rongelap Island was considered safe for habitation. A new village wag constructed, and the Rongelap people were moved there by Navy ship. Annual surveys by a Brookhaven medical team are carried out at Rongelap and also at Kwajalein and Majuro Atolls, 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, who were relatives of the exposed... people but had been away from the island at the time of the eccident, moved back with the exposed people to their home island and have served as an ideal comparison population for the studies, 2.2. Type pearl, A Aan AAA 474% z 7 2 ShewnaabeninefieSeGe Nine years after the detonation, thyroid abnormalities began to appear in the exposed Rongelap population, especially {n persons who were less than 10 5008581 :