Sad a radiation exposure vhenever possible, bathing and a ehange of elothing gight de suggested for situations where ths who'se—body infinity gemme dose was leas than 10 roentgens and ghould be recommended for areas where the exposure is higher, OnBusan. In table II it vas suggested that tie relative average gamma dose rates from an infinity oontazinated field at three fest above the ground compared to that on the natives measure! 2y a survey meter held elose to the body was! Agari B7/l/1 (Utirik ‘co (Utir Atel: elt = 8/L (Aliinginae itoli) 53 mx /hr at 16/1 (Rongela; atoll, It is reoognised there are many uncertainties in estizating such a relstionship by this means. Fwen if one as umes the dose rate readings vere taken accurately the factors involved, especially in relation to the amount of material collected and retained an the body, certainly are oct constant. The higher ratio at Rongelap Atoll might have been dus to a prysical great that it vas not retained so completely on the body. Even if this , wt Ne Phenowencn where the quantity of materia’ Calling per unit area was 80 explanation is ecee;ted, there stil) resain many questions, Theoretical considerations irtiecste a gama cose rate ratio at three Leet above an infinitaly contsxinatec fiels te trat at four inches from an equally contaminates “leid of atx incr = est! on to be esbout 7/1. At™ -~, t (See Acpeniix D.)