500
,
!
|
:
400 }-
=a)
_
a}
eS
ay
Ox
am
=
-
’
oe
§ 5 300}
CH
a>
.
.
Linear regression line
y = 12.86% - 72,01
ps
oO
E
_
.
Oe
—
a
©
cm
=s 1 200
ow
. @
p>
<
oo
Or
c
oO
oO
|.
=
100 -—
0
A
0
_A~
10
|
20
30
l
|
AQ
|
50
Concentration in soil — pCi/g dry weight
.
Fig.
6.
the
.
..
137.
.
.
Correlation of the
Cs concentration in mature coconut
concentration
239,240
Pu
and
241
of
Am >
.
concentration of
L37es
60 Co.
in
the
soil
and
24].
ten times
0.
.
Sr on Bikini
that of
same
leaves with
site.
Average concentrations in the O- to
25-cm portions of the soil profiles
é
239,240,
are combined with measured concentra-
Am, and thirty to forty
times that of 696,
the
PREDICTION OF PLANT UPTAKE
The
Island is usually twice that of
137s
at
tions in plants to predict the uptake
(Table 4). As
of various radionuclides from the
mentioned previously, soil concen-
soil.
trations
relationships from the 1975 Bikini
on
Fneu
are
about
ten
In general,
these plant-s0il
times lower than those on Bikini
survey confirm the results. of previous
Island for all the radionuclides
surveys;
considered.
are often statistically insignificant.
-l7-
however,
the relationships