GROSS ACTIVITY
Graph 3
. J C/KG WET
10,000
160
~
Oo.
b=
1,000
a
10
ISLAND SOIL
—
100
1
—
&
\
_—
\ ae COCONUT MILK
ALGAE ~~!
\
HE
oO
6
—
10
0.1
BEACH
‘
-—
SAND
\S
\
f
1
\
x
~
0.01
—
—
L
10
\
25
|
135
1
280
|
600
0.1
0.001
10
Jj
Jt
25
135
330
DAYS AFTER MARCH 1, 1954
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———38
|
600