Table 17
Summary of Radionuclide Body Burdens of Marshallese, 1961, Obtained by Whole Body Counting
Rongelap
weet
a,
a Ma
Male
Cs?" (mpC,’ke)
Exposed
Unexposed
Ay
Z2n"* (mpC,'kg)
Exposed
Unexposed
Age 5-15
Age >15
Age 5-15
Age >15
15.8-£ 1.28
15.71.42
16.022.12
14.21.27
16.31.55
15.91.51
LE.140.95
9.84+0.90
15.8
14.7
16,2
10.4
1.3140.13
1.700.15
1.20+0.08
1.58-0.09
1.34
1.51
1.24
1.42
1.30+0.02
Ay
Co"(uC/kg)
Exposed
1594145
Unexposed
Ay
kK”
Female
1.4340.07
1G1E11L.1
1.320.15
1274144
U.S, medical team
0.048+0.012
1.280.07
0.015 +0.003
170+ 18.6
152422.6
1S9+11.8
1554+27.3
137+8.83
156
159
137
139
6.43 £1.39
(g/kg)
Exposed
2110.10
Unexposed
Av
Total residual gamma
activity (cpm/kg)
Exposed
Unexposed
2.26+0.09
2.130.007
2.07 £0.07
2.0340.05
1.53+0.07
2.17
2.11
1.94
1.63
1.72 0.05
5.40+0.89
4.504 1.42
20.52.72
20.31.91
9.30 2.53
8.504 2.00
19.82.06
18.0+1.80
2.00 +£0.59
No. of People
1.772£0.11
1.71+0.06
Exposed
10
6
26
11
13
7
20
Total
16
37
20
37
Unex posed
17
7
*Standard error of mean.
and age included for comparison. Almost identical
amounts of the radionuclide K"° are noted along
with large differences in the Cs'** and Zn"levels
between the two subjects. The summaryof the
average levels of Gs**‘, Zn°°’, K'°, and Co®° deter-
mined in 1961 for both the exposed and the non-
exposed Marshallese, according to age andsex,is
presented in Table 17. The frequencydistribution
of values in various groups is shown in Figure 57.
Appendix 7 contains the individual values for
each subject.
Cesium-137
The meanvalue for all groups for body burden
of Cs?** was 13.7 mupC/kg body weight. Although
ceonmrmem gy emer my ae ee
-
-
a
the meanlevels of the exposed areslightly higher
than those of the unexposed groups, the two do not
differ significantly. Variation within any groupis
large, as can be seen from Figure 57 and from the
value of the standard error. As expressed here in
terms of body weight, Cs'** body burdensin the
groups aged >16 and < 16 years do not differ
significantly. The meanlevels of Cs’** in females
tend to be somewhat lowerthan in males, but the
difference does not appearsignificant(Figure 57).
Zinc-65
Zn* body burdens per kg body weight appear
to be somewhat lowerin the younger population
group, but again the differences are notstatisti-
7 A TE TN 8ee oo
some
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