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i
j

t

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f

f
.

F

t

ce tele

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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

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. i

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r
"O48

oO

1958

1

1

10

i
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20

i |
ia
#52, “Woe” x
!
i
i

!

30

40

50

60

i

70

#86

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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

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|

puyeicaObenY OF ise) LeveL

Ce-60 (0015)

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,

,

SS

SE

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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

Select target paragraph3