34
Table 1.
Radioactivity of Plankton, FilterPaper with Residue from
Water and Filtered Water (lesa Kk)
Plankton in d/m/z wet
Filter Paper with Residue in d/m/liter of water
Water in d/m/liter
Flankton
Filter Paper
Sur-
Sta-
tion
face
25m.
Water
50m.
75m.
100m.
7200
0
380
O
130
$3100
12
0
180
62
£42100
©
0
0
Sur-
face
25m,
50m.
75m.
240 3200
100 14000
320
6.000
280
0
400 1500
Oo
0
0
0
0
1100
0
0
0
0
|
100m.
1A
B
C
D
E
130
2300
2300
9600
30000
23
0
120.
O
490
0
670 180
1100 130
2A
B
C
D
E
=1600
5400
7900
21000
3700
110—Sso
L440
560
650
2300
©
8&9
63
«92
500
180
180
4L0
180
530
89
62
0
0
110
0
510
390
370
300
1800
850—s
1300
O
4h0
0
4k
1700
1500
2400
0
0
0
220
3A
B
C
D
E
5200
4100
20000
36000
84500
40
190
63
2700
2200
0
4h0
130
180
«46
180
190
180
180
180
Q
Q
92
Oo
180
180
250
180
180
100
460
620
1400
2200
0
1700
1500
2200
1800
0
~
1800
440
1500
0
0
0
660
1500
KA
B
C
D
2900
2900
15000
57000
250
6100
3400
1900
0
63
340
0
360
0
290
0
180
O
250
0
250
130
0
4,8
380
2800
2200
580
0
0
4200
440
1100
0
0
4000
QO
0
0
2600
1300
0
600
2900
5A
17000
8000
Oo
63
190
62
4300
2100
1500
1200
1200
E
B
C
D
&—&
12000
16000
8300
§2000
11000
1100
=
230
1600 210
1500 120
5100 1100
93
1600
O
2
62
400
0
O
84
12
17700
62
46
81,
160
62
0
440
2000 2200 2800
890
1600 1200
gg00 17000 10000
740
740
520
-
660
1600
1800
30000
440
-
-
0
0
0
0
0
0
0
0
0
0
0
0
-
880
0
59
3800
590