REDUCTION OF RADIOISOTOPES BY REMOVAL
OF SURFACE* SOIL
CS—137

ISLAND

% OF ISLAND
CLEANED

(RENE

3

JANET

PEARL
SALLY

*TOP 15 cm.

13

44

4.5

CS-137 pCi/g
PREPOST
10

31

15
7

6

16

7

3.5

PERCENTAGE
CHANGE
IN CONC.
-40

“48

93

“50

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