On the basis of this investigation, the following is, ands are - extremely unlikely to have received fallout from the Bikini f" Enewetak tests at levels higher than the background exposure of 200 mfem/year: Wotto pbc Aur Lib Me juro ‘Haloelap Arno AilinBlanateap Mili Ujae Lae otje Erikud Namorik Kusaie Kili Kwajalein Namu Jabwok Narik Jalui Ebon and any other islands circumscribed by the above. The following islands may have received some fallbutl muciear tests. from It is unlikely that the intensities would have resulted in an exposure of more than 2 rem the first year; subsequent] annual exposures would have been less than background: Jemo Ai luk Meji The following islands did receive fallout with intemsities ranging from 1 to 2090 R/hr at J hr. They are listed ines jmatec order of decreasing residual activity: Rongelap Taongi (based on cloud drift only - no survey data Rongerik Ailinginae Bikar Utirik Taka TI. vailable) DOE ARCHIVES CONCLUSIONS The above estimates, even when corrected for soil gration, can only be considered preliminary; they are very likely td be upper bounds. Note that only ¢s29? has been considered. The addi tion of sr2° (a beta-emitter) and co? (which results from weapon bris acti- vation) are necessary in completing the estimates of the tat al activity owtny present.