i
STat
|| gableX the,values:for: the. water. samplesexpredséd in. @/a/mt t
7
ea
. "Whole water’ samples were.used for counting, 1.¢@,, none
a
_agtivity.
aminute per. kilogram for potassium-40 are 560 and fer all other
For ceeanwaters, theatomie disintegrations per
natural-cecurring isetopes about 10."
‘This means that the con=
tribution of natural-occurring isctepes to the values in Appen-
dix Table X for lagoon water samples ranged from 0.6 to 1,2
aff.
Beeause of the relatively ereat counting error of the legoon
water samples neither the rate of decline nor the decay rate was
estimated,
.4
va
Be
ee
|
*
vee
bie
:
7
RaeaeEE
on
oR
,80.the values in the above table are these for total radice«~
ee
(of the natural-ocourring radiolagtopes were chemically removed,
a
a
* ae
7
|
:
ragRETE
open
me
rng
cia
"0.95counting error aregiven... °° ~-
A conservative approximation of the radioactivity
“ah
x
Ra
&
of the lagoon water, based wpon the average difference between
the observed value and the positive 0.95 counting error for
sd
the January 26-30, 1955 samples, is 2400 d/m/t (.0011 uc/i).
ing water was taken from an open can on Enisetok Ieland and the
ground water from a two-feot hole that was dug on Kabelle Island.
The ground water was most radioactive, 48,000 d/a/l (.022 ue per
liter) and may have contained radioisotopes that had leached
from the soil, However, the decay rate r= t°2-35 for the period
from March 23 - July 30, 1955, waa similar to that for mixed
* Schubert, J., “Radioactive Poisons," Selentifie American,
Vol. 193, No. 2, pp.34-39, Auguat 1955,
sare 0 eseswcemgs a
Tae ek ARESIR EONS,
e
—
The stand-
wwe ests) ttt
filtered well water, standing water and ground water.
s
Be
&
meteriy
The samples ineliude cistern water,
SS Yoht ih Ps C1
Si SOR RIGASORRR
FS
er
reliable (Appendix Table X).
PESNTRSNsCeaagSrtMcog oS
For the fresh-water samples the counting data are more