70 Table 41 Mean Cesium-137 Levels Obtained by Whole- Body Counting, 1974 Male No. Bikini nCi 8 Utirik 128 9 Rongelap BNL med. team Female 262 22 4 aCi/kg body wr. No. 1.84 (0.43-5.11) 13 7.76 (4.37-16.3) 0.0352 (0.0134-0.0791} 24 4.05 (2.64-6.84) 475 2.93 nCi nCi/kg body wt. 73 13 1.15 (0.22-3.26) 133 2.13 (0.96-3.85) 304 5.13 (2.71-13.46) Table 42 Dose to Bone Marrow (Data in mrad/year) 1958 1974 Rongelap Rongelap Utirik Bikini Internal Sr 137s Natural (4°K, etc.) Toral Lt 120* 44 8 60 44 6 31 44 3 16 44 175 112 81 65 15 39 7 39 65 39 External Residual gamma(in village areas) Natural (cosmicetc.) 250 134** Total Combined total *137Cs +.65Zpn, 384 54 46 104 559 166 127 169 . **High value due to increased cosmic-ray dose from above-average sunspot activity. The year 1958 was the time of peak radioactivity at Rongelap. 18 0.6 l ' 1 05 gi - S| t ' Ye x | a, ty i \ 31 0.3 —- — 1954 1 ‘ \‘ \ 1 1959 1957 T ._ People a ~s ~. SZ O2- a a1 ' A _ ' 5 wh & Usirik . ° y oo Medical team 1961 1967 1965 1971 1969 | i | 1 7 _* d ‘ ‘ i é , whole-body gamma spectroscopy (0, 137Cs; @, ®Zn). \ A ‘ “yt 1959 1957 I 9 ! : NA, py | Toe ‘ & 4 Aone 1954 : ‘ t holy 1974 -|: ‘ ei ,\ o;i r7 Bikini, - | ‘wry ’ ai a 4 Figure 56. Body burdens of gamma emitters, obtained by I00b!51 =, E | TT a, 5 t | bo 1963 a & a ~ people a TT Bone, | . sa] Rongeiap TTT 2 ‘ ‘\85Zn e 3!' ~. o13TCy A 04- 3 toy a a” a | ' r “o>.ICs Rongelap ‘ Bikini o Lo 1963 1961 1965 Lo 1967 1971 Uank 1974 1969 Figure 57. Body burdens of strondum-90, obtained by radiochemical analysis of urine.