VICTOR (LUKOJ) AND WILLIAM (JELETE) These two agiacent islands located at the southwest end of tre atoll are very similar in vegetative cover and Lackground radiaticy ‘evels. In general, the background ranges fron 10 tc 180 .k/hr on Luke? and 10 to 150 uR/hr on Jelete (see Figures 10 and 11). No radioactive debris was found on either island. A soil sampie taken on Jelete snowed the primary contaminants 73 be '37¢5 (75%), ©8Co (12.5%) and ?92MRh (12.5%}. Figure 12 indicates the projected exposure rate reductian based uocn these percentages. This sample also contained 82 pCi/g of 2995249 and 42 pCi/g of *7*Pu (air-dried weight). There are few coconut trees on either island. A single sampie from Jelete gave the concentration of }37Cs to be 5.4 pCi/g wet weight. YOKE (ADRIKAN), ZEBRA (OROKEN), ALPHA (BOKAETOKTOK), AND BRAVO {BOKDROLUL) These four small islands located along the western side of the atoll displayed uniformly low levels of background radiation. Maximum ex- posure rates due to gamma radiation were: Adrikan - $0 yR/hr Oroken - 30 4R/hr Bokaetoktok - 15 yR/hr Bokdrolul - 25 yR/hr No radioactive scrap was encountered on any of these islands. itradi- tionally the islands are used by the Bikinians for the collection of Dirds and eggs which are abundant. Samples of birds, egqs, and crabs have been collected by the Laboratory of Radiation Ecology, School of Fisheries, University of Washington. Two soil samples taken on Oroken in the same location indicate $37Cs to be 20-25% by concentration of the gamma emitting radionuclides. One sample (surface to one inch deep) showed !25Sb to be about 75% of the total and ©°Co about 5%, while in the other fone inch to six inches in depth) 125Sb was not detectable by gamma spectroscopy, 6°Co contri- buted about 50% and 1} 92MRh the remaining 25%. 20 Sm 5009042