On the basis of this investigation, the following islands are . extremely unlikely to have received fallout from the Bikini or Enewstak tests at levels higher than the background exposure of 200 mrem/yeer: Wotto poibeiadiee Ujae Lae Lib Majuro Namorik otje Erikud Maloelap Arno Kili Kusaie Kwajalein Aur Namu Jabwot Ajilinglanalap Mili Nar ik daluit Ebon and any other islands circumscribed by the above. The following islands may have received some falldut from nuclear tests. It is unlikely that the intensities would have resulted in an exposure of more than 2 rem the first year; subsequent annua) exposures would have been Jess than background: Jemo Ailuk Mejit The following islands did receive fallout with intensities ranging from 1 to 2999 R/hr at J hr. They are listed in estimatec order of decreasing residual activity: Rongelap Taongi (based on cloud drift only - no survey data availadle) Rongerik Ailinginae Bikar Utirik ‘Jaka TTI. ~ CONCLUSIONS DOE ARCHIVES The above estimates, even when corrected for soil migration, can only be considered preliminary; they are very likely to be upper bounds. Note that only cst3? has been considered. The addition of gr? (a beta-emitter) and 606° (which results from weapon debris acti- vation) are necessary in completing the estimates of the total activity wey present. 36