One of the first estimates of Rongerik external whole-body dose is cited in Reference 19 as 78 rad, from WT-939 (Reference 5). This value came through the use of a secondary reference (Reference 22); WT-939 actually provides a range of possible air doses (R), from which it selected a value of 86 R. While WT-939 did report final results in terms of R, it contains a discussion of corresponding depth doses in tissue. The magnitude of depth doses, relative to the air dose, are consistent with the aim of a film badge reading to adequately reflect depth dose. Correspondingly lower film badge doses would follow from these relationships. Even after conversion to depth dose/film badge dose, the WT-939 dose estimate remains greater than the present value for two reasons: and how it arrived at an integrated intensity in air. how it considered shielding Without the benefit of WT-938 (Reference 3), published later, WT-939 incorporated no specifics on personnel movement; an estimate was used of one-half of the time outdoors with no protection and one-half of the time indoors with a protection factor of 2. Based on the personnel scenarios in WT-938, however, it is deduced that a considerably greater fraction of the time was spent indoors, and more of that was in buildings with a PF > 2 than PF 2. In fact, for the lowest dose case (CN406), detailed in the Appendix, the time-averaged PF was greater than 2. Thus, the calculated film badge dose for this case is less than two-thirds of what WT-939 would suggest -- 0.65 x 0.7 x 86 = 39 rem, close to the present value of 32 rem. The WT-939 estimate of integrated intensity in air relies on an assumed duration of fallout deposition. While the present analysis initially follows this approach, the results are adjusted for actual film badge readings. Both indoor and outdoor badges, when shielding and duration of exposure are properly accounted for, imply a consistent adjustment factor. Lacking any known systematic error in the film badge readings, the normalization to badge readings provides ‘the most credible personnel dose determination. The implied integrated intensity in air is about 15 percent less than in WT-939. This resolves the remnant difference in personnel dose estimates. One other known estimate of Rongerik external dose is cited in Reference 19. A computerized theoretical treatment of Bravo fallout deposition leads to dose esti~ mates at odds with other analyses for all atolls studied. The wind data available for this approach are too sparse, leading to results that are not credible (Reference 22). 28 Blo