Table 17
Summaryof Radionuclide Body Burdens of Marshallese. 1061, Obtained by Whole Body Counting
Rongelap
Male
_
Awe 3-15
Female
\we
13
Age 3-15
Age 2-13
U.S. medical ream
Cs (mpc: kgs
Exposed
Unexposed
1>.321.28*
[6.G— 7 12
16.3 24.99
LLP ).95
lo.7 21 42
l4.224.27
IS 915i
Vt.
13.5
14.5
[n.2
10 4
Zn imu: ke
Exposed
3bocO.b3
170 20.45
| 200.08
1.58 =0.09
Unexposed
LSOme Or
{1.43 =0.07
142 mt15
1l8 0.07
1.34
1.31
|.t4
1.42
AV
AY
Cov ruc ket
Exposed
Unexposed
\w
Kiirg kg)
Exposed
Unexposed
1391S
jbl 1h
l27 144
L048 ett?
LOLS = 0.003
I70= 18.6
L522 206
ISO 11
133 227.3
137 8.83
13b
139
Lay
139
143 21.39
21P e010
2.25 = 0.09
207 OT
213 2007
20320 05
177011
133 20.07
1.71 ==0.06
247
2.11
L.O4
1.63
L72 20.03
34070.89
L5O+ 1.42
20.5 722.72
2032191
9.30 3.33
8.30 = 2.00
19.82.06
18.0 1.80
OQ) 20.50
Exposed °
Unexposed
10
b
|
26
13
7
Li
20
Total
16
37
20
37
Av
Total residual gamma
activity (cpm. kg
Exposed
Unexposed
No. of People
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 Cs'*", Zn”’. K'’, and Co" determined 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 groupsis shown in Figure 537.
Appendix 7 contains the individual values for
each subject.
Cesium-137
The mean valuefor all groups for body burden
of Cs'* was 13.7 mypC-kg body weight. Although
the mean levels of the exposed are slightly higher
than those of the unexposed groups, the two do not
differ significantly. Variation within anygroup ts
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 burdens in the
groups aged >>16 and < 16 vears do not differ
significantly. The mean levels of Cs'* in females
tend to be somewhat lower than in males, but the
difference does not appearsignificant(Figure 37).
Zinc-65
Zn”’ body burdens per kg body weight appear
to be somewhat lower in the younger population
group, but again the differences are not statisti-