Table 3.
Levels and decay rates of beta radioactivity of Rongelap-Ailinginae plankton, 1954-1957
Plankton net
Plate
No.
Atoll
Island
8201
8202
8303
8239
8240
19005
Rongelap
"
"
"
"
"
Labaredj
"
"
Kabelle
"
"
ao
nation
inch
12
"
"
6
20
6 or
20
of net
125
"
"
74
173
?
?
?
Silk
"
?
?
?
20
20
--
"
20
74
"
"
"
Rongelap
"
Labaredj
"
Kabelle
20
6
20
6
20
6
173
74
173
74
173
74
19030
19031
19067
19068’
"
"
"
=~"!
Lukuen
"
Kabelle
"
6
20
1
2
74
173
74
157
19070
"
2
157
"
"
1
74
"
"
19069
19071
es
"
Ailinginae
te
Rongelap
"
Mojiri-
Enibuk
6
20
1
--
173
74
Date of
collect-
inches ing”
"
"
"
"
"
"
Labaredj
"
rial
19020
19024
19025
19026
19027
19028
19029
ae me ot wn Ae
per
"
"
"
desig-
19006
19019
.
Diam -
Number Meshes Mate- eter
"
"
"
"
"
"
"
a
"
"
Nylon
"
"
"
"
"
"
"
"
"
te
"
"
"
"
"
3-26-54
"
"
7-16-54
"
12-8-54
"
12-18-54
"
1-26-55
"
1-28-55
"
1-29-55
tt
Dateof
first
counting
Ash
Wet
to October |
basis
basis
in wc/kg*
first counting
30,
1957
1.08
1.32
1,27
1.32
1.33
5-11-54
83
"
2330
"
4000
8-11-54
68
"
46
-aed
140
2.1
2.7
-~
-
1-3-55
6.2
- 1.75
5,0
- 1.72
"
"
"
2-22-55
"
"
"
"
—
1
1-30-55
"
"
"
10-21-55 11-26-55
"
"
10-22-55
"
10-23-55
"
"
First count
Decay slope
from date of
"
168
168
104
10.4
-1,35%*%*
32
25
24
27
12
588
3.9
. 54
.95
. 93
~41
1.8
-
1.73
1.68
1,72
1.56
1.55
1.61
37
95
6.4
6.9
1.5
4.4
20
.18
-
1.70
1.70
1.76
1.72
93
2.1
2.0
4.5
5. 8
.044
. 047
. 70
-
-
1. 61
,73***
- 1.38
- 1.58
4
.
.
é
|