radiation exposure vhenever possible, bathing and a ehange of elothing aight be suggested for situations vhere the whole-body infinity gamma dese was less than 10 reentgens and should be recomended for areas vhere the exposure ie higher. Dunens In table IT it was suggested that the relative average games dese retes from a infinity eantaninated field at three feet shove the ground compared to that on the natives measured by a survey meter held elese to the body vast aad #7/) (Utirik ttoll’ 15 =r ary = 8,1 (aAilinginae atoll: §3 or/hr MUR 16/1 (Rongala; Ato] | : } f 4 XL It is recognised there are many meertainties in estimating sueh a relationship by this aeens. FEwen if one assumes the dose rate readings vere taken eccurately the factors involved, especially in relationwo the smount of material collected and retained om the bedy, eertainly are not eonstant. The nigher ratio at Rongelap Atoll might have been due to a physical phenomenon where the quantity of zaterial falling per umit area was so great that it was not retained so completely en the body. Ewen if this explanation is aceerted, there stil) remain many questions. Theoretical considerations indicate a gamma dove rate ratio at three feet above am infinitely contaminated field to that at four inches from an equally contaminated field of six inch radius to be about 7/1. &. “ Re le oom (See Appendix D.) 33