be made. Table 4 summarizes the fallout pattern characte Stics fro the Bikini tests. The last column in most cases indicates that the wind directions precluded fallout on the islands. The de nite exceptidns are Bravo and Yankee. were in fact made. For Bravo and Yankee, off-site Wone cf the Enewetak shots resulted inf Zikini or other islands to the east, so the test operations carn be ignored. measurenents fallout on in Table 1 . ’ Figure 2 shows the Marshall Islands relative to the test loce- _ tions. “The Bravo fallout pattern has been reconstructed ifdependently by AFSWP, NRDL and RAND using some modelling, while the Yar ee pattern is based on extensive surveys. _ islands are given in Table 5. The one-hour dose rates for affected All of the listed islands are outside the lowest dose-rate (100R/HR) contour for Yankee (Rongelab is just _ barely); the levels are stated only tothe nearest decade extrapolation had to be used. The range of values for Ro : Ronoerik is due te the variation of the Bravo pattern acr . respective island. By and large, Bravo is the predominant] Table 6 provides 1977 estimates of the cs}3? dose ' these islands. On the basis of the limited comparison pe contributor. pate for ormed for , the Enewetak case, these values could be reduced by a fac r of about : 6 to account for soil migration, provided the geology jis s ‘ilar to that : for Enewetak. The final part of this paper is devoted to identi " high confidence which islands did not receive fallout fro DOE ARCHIVES ing with the Bikini tests. Table 4, as discussed above, indicates that only ravo and _ Yankee definitely resulted in fallout on the islands; thi "on the use of off-site measurements to reconstruct their fs basec Spective The other shots in the Castle operatio » for which problem. there were no off-site measurements, apparently were not However, a detailed investigation is warranted and is rep rted on in the appendix. Also contained there is an extrapolation o the Bravo fallout patterns. _and Yankee patterns to a level consistent with background. “3