RADIOACTIVE CONTAMINATION OF AREAS IN THE PACIFIC OCEAN FROM NUCLEAR TESTS
24
Unlike localization in the liver of mammals,
Zn® was found distributed fairly uniformly
among the tissues. The Co” found in clams
accounted for the major portion of the activity.
(The ability of clams to concentrate Co™ selectively was verified by laboratory experiments.)
Table 24—Radiostrontium, Radiocesium and
Radiocerium-Praseodymium in Biological
Samples, December 1954-January 1955 (AFL)
Table 25—Sr™ in Biological and Lagoon Bottom
Samples from Rongelap Atoll, October 1955
(AFL)
IsLaND
ORGANISM
PERCENTAGE OF TOTAL
ACTIVITY
Sr®
Sr
June-July
1965°
Rongelap Atoll:
Gejen.......-- 31 coconut milk. .... <0.1|<0.1]
Kabelle....... 37 Caulerpa....---.-)------|-----30 coconut milk.
38 Halimeda.._..--..|-.----]-----39 coconut crab
0.8]
muscle,
41 mullet muscle..._| 0.6
48
0.0
Labaredj...._- 29 coconut milk..... <0.5 1<0.5
42 tern bone.....--.-| 0.0
0.0
43 tern bone.-....--.] 0.0
Mellu_...--.-- 40 dogtooth tuna
0.0
0.0
0.0
Rongelap....-- 27 coconut meat.....| 0.0
28 coconut milk..... 0.0
0.0
0.0
muscle.
32 pandanus fruit...\>0.1};
34 papaya mest.._.. >0.2;
33 squash meat..__.. >01]
Csi8?
Celis
pri«
Sept.,
July,
Oct.
195°
81.
Aug.
1955"
0.0
0.0
1.
0.0
2B.
72,
67.
0.0
76.
0.0
0.0
4.8
0.0
1.0
L6
0.0
2.
2%.
0.6
2.
78.
<0.4
<0.2
68.
3.7
13}
110.
LS
§1.
25)
IsuaND
Rongelap...
Labaredj._..
Kabelle....-
110
180
a
40
440
Coconut crab liver__...--......-
1, 200
Coconut crab salts of carapace...!.........--.
Coconut crab cuticle of carapace.|......--..--
Labaredj...| Giant clam mantle and muscle..
Do....-
1,700
Giant clam kidney.......-..---Bonito muscle._.
Bonito liver...
-
5, 200
150
1, 700
Grouperliver..Goatfish muscle.
-
5, 500
42
fraction containing mer neh
papees
Bonito bone...
Kabelle.__.. Grouper muscle.
.
.
Labaredj...| Tern muscle_.-....-.-.--------Kabelle.....
0.7
Lagoon bottom,
depth of water 6’,
particles >0.074
1.0
*Dates of analysis.
Tota,
Activity
d/m/g*
SAMPLE
=
mm diameter.
Br,
PeRcent
or Totan
ACTIVITY
0
21
46
a2
2.0
2
50.0
2.0
a
0
a
0
300
31
<0.6
0
61
Qo
,
o
0
oa
.
*Wet weight basis except lagoon bottom which is on adry weight basis.
Table 26—Radiostrontium in Plants Collected at Rongelap Atoll July 23-24, 1956
Counted September 4, 1956 (AFL)
PLANT
TIssvE
ISLAND
Breadfruit._.......-.-.------- Pulp...-..---------------- Rongelap-_-__....-----.--Morinda...
-
Pandanus...
-
Arrowroot..
Coconut...
Do...
Do...
Do... ine eee ence eee nee
wes
-
Tota.
f# actrvrry
d/m/g wet
Sr
d/m/g wet
42.0
80.4}
0.820. 03
3.10.1
108
262
646
36.9
148
2. 50.6
Q
0
0
0
70.7
Catcrum
g/g wet
“SUNSHINE
Units”
2.240.6
wre pe a ee
oe.
Sr: Sree