61 Table 2; Marshall Islands Radiochemical Urine Analvsis, 1965 Subject No.* Age Sex Volume. ml _ pCi Sr /liter M F 5130 6080 0.088 0.058 3.6 9.6 3.5 2.1 Mean 5605 0.073 6.6 2.8 5.0 8 13 F 730 0.018 8.1 15 18 F 730 0.008 3.2 710 0.104 51 53 36 19 F F 289 650 45 F 645 58 70 1] 20 27 40 ol 18 37 40 M M M M 835 843 928 31 36 52 932 59 4] 50 73 942 822 833 840 853 855 55 45 29 - nCi '*'Cs/liter RongelapIsland Pool Pool a g Ca/liter F 28.0 10.0 23.0 4.4 0.043 3.1 1.2 0.010 0.096 0.103 0.192 79 1.0 16.0 3.8 11.0 3.4 2.1 6.0 5.1 4.7 890 1800 650 0.084 0.062 0.243 6.2 3.6 12.0 2.2 0.6 19.0 F F 530 1340 0.041 0.087 3.5 3.3 5.2 15 30 F 350 0.134 24.0 60 60 M M 1750 500 0.032 0.152 4.4 23.0 50 18 32 35 M M M 940 500 1320 560 6.2 0.126 0.100 F = 1040 F M M M 540 835 1000 800 Mean 831 0.078 0.238 0.003 0.143 0.037 7.6 6.5 9.7 28.0 4.5 10.8 6.4 18.0 4.5 5.1 6.0 0.093 10.1 6.3 0.057 0.081 0.137 2.8 2.1 4.6 0.7 0.2 0.3 2.0 3.6 Ebeye Island 12 45 84 29 43 10 F F M 980 600 719 895 35 F 860 900 0.075 0.194 3.3 0.1 Mean 812 0.109 2.8 0.3 920 33 M 1.2 0.1 *Subjects with numbers < 84 are members of the exposed population; those with numbers >84, of the unexposed population. Results and Discussion of Sody Burden Estimation Figure 69 shows some representative whole- = eae body gamma-ray spectrographsobtainedin the 1965 survey. The AEC team is seen to have a spectrum not markedly different from the back- ground spectrum except for the natural *°K peak and a trace of '*’Cs, whereas the Rongelapese havesignificantly higher '°’Cs peaks. Analysis of the curves indicates that the °°Co values are also detectable in many of the Rongelapese. As had been anticipated on the basis ofits relatively short physical half-time, the *°Zn seen in previous surveys had disappeared by 1965. Table 26 summarizes the whole-body counting results, and the individual values are presented in Appendix 17. The results of the urine radiochemical analyses are displayed in Table 27. Inspection