-
an understanding of the methods
20
-
of distribution of radioactivity in the
lagoon.
Table 6.
Gross beta activity of the algae collected from the deep
and shallow waters of Eniwetok Atoll, expressed in
pc/kg of wet tissue.
I sland
Date of
coll ection
Rex
6-6-54
Bruce
6-3-54
6-21-54
Elmer
9-4-54
9-9-54
9-15-54
Halimeda spp.
"
"
"
"
Vera
2-11-55
3-9-55
3-11-55
Halimeda sp.
n
"
Halimeda spp.
Edna
3-8-55
6-16-54
Species
Deep water
Lyngbya majuscula
"
"
"
"
"
"
"
"
Shallow water
50
130
28
50
2.6
2.7
0.24
0.21
0. 24
0.20
35
1.2
The radioactive materials adhering to the bottom sand of the lagoon
are constantly undergoing mixing and diffusion into the adjacent water.
Therefore, the amount of radioactivity in the sand may be directly related
to that in the water and indirectly to that in the algae.
The ratio
relationship of the radioactivity in the algae to that in the sand,
of radioactivity in the algae,
of radioactivity in the sand
for the
amount
anount
was used to determine whether the algae
had concentrated radioactive materials from the water.
The results, given