24
RADIOACTIVE CONTAMINATION OF AREAS IN THE PACIFIC OCEAN FROM NUCLEAR TESTS
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
Table 25—Sr™in Biological and Lagoon Bottom
Samples from Rongelap Atoll, October 1955
(AFL)
Radiocerium-Praseodymium in Biological
Samples, December 1954-January 1955 (AFL)
PERCENTAGE OF TOTAL
ISLAND
ORGANISM
Sr}
Sr”
Csi7
June-July
Rongelap Atoll:
19056"
Gejen_-...-_-- $1 coconut mik_...- <0.1 |<0.1
Kabelle- ..-.-. 37 Caulerpa_. wnaeee foo eee efee ee
30 coconut milk __.__|.---_.]---.-38 Halimeda_-..-.-.-|.-.---|-----39 coconut crab
muscle,
ISLaND
ACTIVITY
0.86]
4.8
41 mullet muscle. -_-| 0.0
0.0
Labaredj...-_. 29 coconut milk-____ <0.5 |<0.5
42 tern bone.....-...| 0.0
0.0
Rongelap....-- 27 coconut meat. .___ 00
28 coconut miik._._.| 6.0
00]
0.0)
43 tern bone....-.__.| 0.0
Mellu__..----- 40 dogtooth tuna
0.0
muscle.
32 pandanus fruit._.|>0.1|
34 papaya meat..._. >O1)
33 squash meat._.__- >0.1)
0.0
0.0
Sept.,
Oct,
1966*
81.
0.0
72.
0.0
67,
Pritt
July,
Aug.
1055"
0.0
71.
0.0
28.
Lo
15
0.0
0.0
4.8
26.
0.6
23.
2%.
78.
<0.4
<0.2
68.
3.7
1.3
10,
15
51.
25
ACTIVITY
d/m/g*
8re,
PERCENT
or TOTAL
ACTIVITY
Core
0.0
76.
0.0
ToTaL
SAMPLE
0.7
Rongelap...|
Coconut meat.-.-...-----------Pandanus fruit........--...-._--
110
180
Giant clam Kidney.._......-.---
5, 200
Bonito liver....-_-._._---_---.--Bonito bone.-_.._-_.._-.--.-----
1, 700
390
0
<0.6
Grouper liver___--.....-_-__----Goatfish muscle___._..-.._--__-_Labaredj.-..| Tern musele.....-..-.--.-.----.
5, 500
42
61
0
0
0
fraction containing wae inch_-
ae
Morinda fruit_...._...--.-.-.--aT
Labaredj...| Arrowroot corm._...----------.-40
Kabelle._... Coconut crab musctle...-...--_-440
Coconut erab liver.._.-_.-_--_-_
1, 200
Coconut crab salts of carapace-._}._.....-.--Coconut crab cuticle of carapace_|___.-._-.--Labsredj_._| Giant clam mantle and muscle__
1,700
Do....- Bonito muscle__.....-..-.-.---.-
Kabelle___-. Grouper muscle_-_.-__.-.--------
Kabelle.._-. Lagoon bottom,
depth of water 6’,
particles >0.074
1.6
*Dates of analysis.
mm diameter.
7th
inch.-
150
al
» 000
0
21
46
3.2
2,9
12,
50. 0
29.0
0
0
0
0
.x
.
*Wet weight basis except lagoon bottom which is on a dry weight basis.
Table 26—Radiostrontium in Plants Collected at Rongelap Atoll July 23-24, 1956
Counted September 4, 1966 (AFL)
PLANT
Breadfruit___...-.-----------Morinda_...--.-------------Pandanus.-__--.-.-----------Arrowroot....---.--.--------Coconut........-.-.----.----Do_-..-----.------------Do..-.-.--2-4------- ene
D0... -.-n--0--------- ++
TIssvE
Isuanp
Pulp...--------~-------- ..| Rongelap...-....---.--_Pulp and seed____._..--.--|---.. do... ---2---- eae
Seed. ..--_-.----.---------|----- do... eee
Pulp and skin..-.----_.- --}----+ 56(a
Milk...- 22-2. ef e eee do... ene llMaat......---.---.---.--.-]---.- do_---.-.-. wee
MiUk_....--.-.-----.------ Eabelle,-..-.-.-----_--_Meat...-..-.--------------|----. do... 2. neue
TorTaL
fA acrryity
d/m/g wet
Srv
d/m/g wet
42.0
80.4]
79.7
108
262
64.6
36.9
148
0. 82-40. 03
3140.1
2.2+0.6
2. 540.6
Q@0@
0
0
O
Calcium
e/g wet
“SUNSHINE
Unita’”’
0. 000628
5914-70
0. 00136
604-40
0. 00450
150-44
0. 00333.
2944-39
fice ee enue} eee eee
|lllieee. ee }e------- eee]
Foseennene ne-|o-ee- ee ee]
Jenne enn nef eee een
Sri; Sr
1.77+0.10
3. 6840, 22
6. 76-0. 06
1.48240. 05
Jeee-- eee eee
ee ---- eee
-------- ee
[een eee eee