io?
>
F
5b
L
a
2
=
=
~
Sk
o
y
UL
E
2Fr
=
ES
2
=
a,=H
L
aT]
=
er
4
MUSCLE
DIGESTIVE GLAND
BEACH SAND
BOTTOM SAND
1
=
—
4
b
[Bies
“
ER
EK®
|
S41
z
7
|e
R
1
;
4
8
Ww
a
:
Sj
z
es
of
=
1wW 0° CF
S
GILL
MANTLE
——
a
1OF
=e
ef
HE
a
i
4
-
i.
+
~[
r
*
Rd
IGURIN
19.
RIGIL!
14
BOGALLUA
3
:
ENGEBI
3
ETT
:
if
4
a
4
4
i
4
4
AARAANBIRU
9
NAUTICAL MILES FROM GROUND ZERO
eg
RUNIT
12
Fig. 4.1——Relative radioactivity of soil or beach sand. Bottom sand taken from sea-cucumber guts and
giant-clam gill, mantle, muscle, and digestive gland. The relative activity of each type of
sample at Igurin is taken as 1.
UNCLASSIFIED