GROSS ACTIVITY
Greph 3
UC/KG WET
-Q.
a
100
1,000
10
ISLAND SOIL
Hyg ; iste,
x”
10,000
100
1
&
\
-—
ALGAE
\ N™ COCONUT MILK
\
|
COCONUT a,
\
6
—
10
x
‘
BEACH
SAND
N
1
10
0.1
L
J
25
135
J
280
!
0.1
\\!
0.01
0.001
10
600
DAYS AFTER MARCH 1, 1954
!
j
25
135
Ly
330
RATE OF DECLINE OF RADIOACTIVITY IN ALGAE AND SOILS AND COCONUT MEAT
AND MILK AT RONGELAP ATOLL FROM MARCH 26, 1954 TO OCTOBER 23, 1955.
427792—57——8
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