Table 2°
er

Mean Concentration of 905, in Coconut Crabs Collected
at Rongelap Atoll from 1957 - 1974

Sample
Type

oconut Crab, Muscle

oconut Crab, Exoskeleton

.

Collection
Area

Collection

Rongelap I
Arbar, Busch I

Date

1957-58
1974

Number of
Samples

1955
1957-58
1974

Arbar I

1959

2

Kabelle I
Kabelle I

1959
1974

3
3

1974
1959
1974

in pCi/g, dry

12
4

Kabelle I
Kabelle I
Kabelle I
Arbar I
Mellu I
Mellu I

Mean Concentration

1
14
3

2
2
1

90sr
14
25

120
47
4.8
480

64
1100
240

1600
130

These data were taken from the following sources:
Collection Date
1955

1958-1971
1974

Source
Donaldson,

1955

LRE, unpublished data
This report

27 pCi/g, wet, multiplied by a wet/drv ratio of 4.5.
:»

This table is a partial reprint of Table 7, NVO-269-32, "Radiological Survey
of Plants, Animals and Soil at Christmas Island
and Seven Atolls in the
Marshall Islands-Progress Report for 1974-1975", V. A. Nelson, 1977.

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