The decays for sea vater are given in Tabls § and Pigure
ll. Counting errors were large because of the low levels of
neerly #11 of the
jater counts. The contribution to the
rediocactivity by
wes compensated for by subtracting 1
fres each count per ainute per 5 wiliiliter plate.
per minute per plate ves equivalent to 3 d/a/plete,
Qne ccunt
because
the correction factor for geometry, back scatter, anc :elf
adsorption was approximately 3.
fable 6.
Attell ts
Desay retes of see water samples collested at Bnivetes
» dwme,end July 1954, with o°ren pie it desiine
Meee ce eet
rates frem
Curve
Teble } for comparison.
Plate
Bunber numbers
Date fer Pig. ll.
Tipe spen ia pesetire
Lecaility
after
8/14/84,
ay
of
epee = tegen
deeay slepe
1
2
3
-
é
6
7567-68 Belle, cccean side
7600-70
7676-76
°*
°“
7606-06
ee0s-04
=—*
0”
ole:
°
*
plankton station
escean side
lagoon side
6
7
0703-984 Wide Passage
7678
Levey plankton ste.
9
e7es-06
8
°
.
°
33-630
°
°
°
Teble ti
1.3
535-630
1.8
39-630
100-800
1.8
1.0
49-040
1.8
86-910
100-300
85-0640
100=300
3
2.41
With the exception of
ocean side (curves l, 2,
The decay curves tend to
level terminally, even after subtraction of the activity due to
K
e
Saw activity
and 4) where decline was unusually
gradual because of low early
values, declines were steeper than
1.88
2.01
1.4
9 sea water decays are graphed in
decays.
2.30
2.40
2.41
The data of Table 6 for the
Belle,
1.88
1.88
1.8
2.8
10,000.
Pigure 11.
fren
@.41
e