Table 1.
Levels and decay rates of beta radioactivity of Rongelap-Ailinginae plankton,
1954-1957
Decay slope
Plate
No.
Atoll
designnation
Island
8201 Rongelap
8202
Labaredj
'"!
"
12
W
"
Kabelle
tt
20
it
tt
6
iD
It
UW
't
6
20
it
"
Labaredj
"
Rongelap
"
Labaredj
"
Kabelle
vo
Lukuen
"
Kabelle
1
"
Rongelap
1
iw
"t
tt
tt
u
/
iT
tt
"
it
Lb
uO
"
"
Ailinginae
"
6
20
6
20
6
20
6
20
6
20
Ww
Rongelap
per
inch
"
2330
-_
1. 32
i
9
2
"
tt
4000
140
1 . 27
68
2.1
74
"
.
.
20
7-16-54
8-11-54
1-3-55
20
"
tt
—-
--
it
"
20
12-8-54
74
"
"
12-18-54
74
"
"
1-26-55
"
1-28-55
it
n
173
173
TH
"
u
w
"
it
H
83
46
--
1.08
2.7
_
1.32
1.33
"
Ht
"
168
10.4
6.2
- 1.75
"
104
-55..0
- 1.72
i"
2-22-55
it
"
1"
74h
"
ut
"
"
1-29-55
"
74
"
"
1+30-55
"
173
173
74
n
Nylon
tt
tt
173
157
tt
58
93
37.
95
95
.93
. hy
- 1.68
-
1.72
~ 1.56
~
il. 55
1.8
- 1.61
11.5
~ 1.70
5.8
u . uy
~
~-
1.61
1 . 70
"
10~22-55
2.1
O44
=
"
"
10-23-55
"
"
10-24-55 11-27-55
74
170
27
12.
54
1.73
- 1.76
7TH
170
au
-
20
"
151
Li
25
3.9
1,35**
6.4
"
2
tt
"
32
~
10-21-55 11-26-55
"
74
HW
168
"
"
t
20
Silk
i
or
2
20
ing to Oct.
30, 1957
5-11-54
157
it
Ash
Wet
basis basis
first count-
3-26-54
2
Rongelap
from date of
in uc/kg*
?
173
?
collect- first
ing
counting
First count
9
157
1
of net
inches
Date of
2
"
"
ial
Date of
tt
2
Mo jiri-Enibuk 1
"
1"
|
Diam-
Meshes Mater- eter
125
H
Wl
"
Plankton net
Number
"
"
"
Silk
tt
"
w
12
it
"
"
"
"
"
"
"
"
vf
1"
7-23-55
8-23-56
"i
tT
6.9
.18
047
2.0
- 1.72
. 73a
= 1.38
HAS
.70
- 1.58
4.6
94
- 1.71
5.5
34
7.4
41
178
.80
2.2
19
1.53
-
1.73
- 5.3
-11 4