The estimated whole-body gamma dose to natives evacuated from the island ef Utirix following the Mareh 1, 1954 detonation at the Facifie Proving Greund was about 15 rventgeas for a vat mo beta burns appeared. period of sbout three days, It is fair to assume here that direct conta ination toak place due te their mde ef living insluding housing that was quite open te air currents. bedies of the native: boarding the shi;. femme doce rate rvadings vere taken over the «at abeut H plus 76 hours both on the beash end after Om the beac the persormel readings averaged shout 20 ox/hr gamea (but this probably included sone contribution from the ground contamination, amd after wading througr the surf and boarding the ship tne lewels aversged “ mr/nr game. The 12 native: on Sifo Iaiand, allinginae Atoll, reesived an estimatec whole-body gatza dose of "5S reentgen: in about two and a quarter days. Cf these, 1, later axjerienced <lig:t beta burns, 2, moderate burns, and none showed eri lation. In the care of the Rongela; natives, the ertinated vhole-body dose was about 15° reentgen> in abort two days. 411) 44 natives later exrper- Seneed beta burn- to sete degree from elizht to severe ant aver half of the natives showed e-ilation from ife st t- cavers. The 16 natives from Rongela: evacuate! <lreetly by air to Ewajalein nad versonnel gamra dose -°* level» generally &9 to 1% or/hr although one vas es high ef 240 =r/hr and one ss lew es 10 er/air (at Ho plus 55 houra). about The remaining 48 astive: evacustec by ship were reported to hove personne] readings that “averaged" 6 ar/hr before Jscontanination. fa f_U