i ' i j t ‘ ' f f . F t ce tele 60 T ioe — = oti c Ls TTT +3 oy ues ta <7 T Ty! 4 > 4 oC 2 BACKGROUND « TYPICAL MARSHALLESE : 1954 -= HIGH 137,'7Cs MARSHALLESE m b 2 3 e 5 - a “ a 4 5 4 | z* 5 1073 Or . i = 2 r "O48 oO 1958 1 1 10 i ‘Seg | ! 20 i | ia #52, “Woe” x ! i i ! 30 40 50 60 i 70 #86 o co Y RETURN TC RONGELAP 7 } sr-a0 (.002) 1959 $r-90 {.0085} 7 1961 a \ Sr-90 (0069) I Go-601.0078) t 4 Y t . Figure 69. Unprocessed gamma-ray spectrographsobtained with an 11%-in. Nal (Tl) crystal in a shadow- correction for other bodysizes; it is adjusted for the '*"Cs peak. |S30 (oor = 965 shield whole-body counter. The channel width was 20 keV. Traces of '*’Cs and *°Co are apparent in the background spectrum. Theright-hand scale was obtained by calibration with a “standard man” phantom and requires Ca -13? Mm zn-e6s 7 100 CHANNEL NUMBER ~ wo ye" 930 : : = wn e , 1957 oe = WO da c a 5 qe" 2 a ioe 2 q = i— OPERATION REDWING rm 3 : Ce RAREEARTS \ 5 3 —— ‘ Se-90 (.0114) | puyeicaObenY OF ise) LeveL Ce-60 (0015) Sats , , SS SE OE ye ‘ , Figure 70. Estimated body burden ofisotopes in Rongelap people at various timessince 1954. Values obtained either by gammaspectroscopy or by radiochemical analysis of urine. Table 26 Summary of Radionuclide Body Burdens of Rongelap People, 1965, Obtained by Whole-Body Counting People residing on Rongelap Atoll Male Age <I1 Age 11-15 204472 20.4 199 #4.3* 18.1 147449 15.5 15.2 + 54 15.2 30.7 £176 30.7 26.5 31.5 47.3 29.9 40.7 411.5 376 +13.8 38.6 27.0 415.6 27.0 “Cs (nCi/kg body wt.) Exposed Unexposed Mean Co (pCi/kg body wt.) Exposed Unexposed Mean Potassium (g/kg body wt.) Exposed Unexposed Mean 14.0 242+ 0.42 2.42 ‘Number of people Exposed Unexposed Total / *Standard deviation = / Female 2.19 2.09+0.20 2.12 5 5008344 17.1 + 5.3 197+ 0.24 1.88% 0.32 1.91 ‘ 15 Age <1] 2.42> 0.44 2.42 21 I 30 21 2] 16 45 21 Lx) _ =X) . y \ af Age >15 oa Rongelapese US AEC Age 11-15 Age >15 16.3 11.6 + 5.0 13.9 16.1 11.0 + 3.8 11.2 28.7 28.9 28.8 40.0 431.3 31.2 411.2 34.7 1.92 1.81 1.86 6 , 1.52 0.39 1454 0.22 1.48 18 7 27 13 45 . residing at Ebeye 0.89 42.6 1.68 medical team Trust Territory medical team O16HO1L 0.45 3.0 Of 15040.18 1.6! 5 2 7 9g 2