241
The concentrations (pCi/g) of
Am
present and that which will result
in the soil at Bikini and Eneu are
from 24loy decay will be 0.81 (0.55
approximately one-half of the
+ 0.26) that of the existing 239,240,
239, 2
.
*0pu concentrations.
However,
soil concentrations.
more 241 am will result from the decay
of 24lou,
The parent-daughter rela-
tionship for 241ey 24dam is shown in
_ Fig. 4.
that will result from an initial
activity is 2.6% of the initial
.
2
activity.
Because the present
241
dose via inhalation, the eventual
241
.
.
Am soil concentrations can be con-
sidered equal to the
The maximum. 241s activity
2415
Pu
For estimates of
trations.
239,240,
As a result,
uo concen—
the doses
shown in Table 6 for 239,240, | can be
doubled to account for the 24)Ann.
4loy
activity in the soil is 10 times that
of 239,240,
241
Am soil
u, the final
activity resulting from the decay of
DRINKING WATER PATHWAY
The analysis of cistern and ground
24toy will be 0.26 that of 239,240,
water were published in a separate
The currently observed
report.
bam soil con-
centrations are 0.55 that of
239,240,
Both radiological and chem-
ical analyses were performed.
A sum-
Thus, the final total soil concentra-
mary of the radiological quality of
tion of 24da resulting from 24) An now
the water is presented here.
1
Ligiitl
~_
J
Liter
.
\
wo
N
241 Am activity
0
40
80.
}
241 Dy activity Sf \
\
j
KO
oH
241 Am activity
a Len
Relative activity
J ft
Jf
-_
-
T
241By activity
i)
T
OTT rt
I
AIT
T TT?
atPee ee
402
For more
Fig. 4.
Relationship between parent
Pu activity and daughter 241Am
activity.
120
Time — yr
5009416
-20-