OFFICIAL USE ONLY
II.
GROSS ACTIVITY
C.
Soils
Graph Three shows the general levels of activity in the soils
of Kabelle and Labarejd Islands of Rongelap Atolls, as reported by
AFL.
2
Tables 13, 13a and 14 report the activity in different soils at
different depths for the February 1955 survey,
Table 15 for the
February 1956 survey.
Tables 16 and 17 show the analyses by HASL.
The data clearly indicates the major portion of the activity is
to be found in the top three inches of the soil.
tion III, Ce
Ley
- Pr
Ly
and Ru
106
- Rh
106
As suggested in Sec-
make up much of the fixed
contamination in the soils at periods of one: year and more after the
fallout occurred.
~ De
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