Anticipated Analyses of New Data
Since January 1,
1975, additional data from the safety-shot sites have
been reported by the analytical laboratories.
This includes analyses
239-2405, |
241, 2345 2354 2365
238
for
,
and
>
U for soil and/or
vegetation samples taken from A site of Area 11.
While incomplete,
these data will be used to obtain preliminary estimates of inventory
for 239-240, 235y
238
’
,
and
U in the surface soil of A site.
Results
for four profile samples have also been reported for this site.
2385, 239-240,
Additional soil and vegetation analyses for
, and
241
Am have also been reported for the TTR sites.
ble,
Whenever possi-
these will be used to update the estimates of inventory
reported for these sites in Gilbert et az.
(1975).
Attempts to
estimate 239-240Pu concentration contours using the SURFACE II
computer program will also be made using the new TTR data in
combination with that previously available.
Hopefully,
less
biased estimates can be obtained than reported by Gilbert e¢ al.
(1975)
for Area 13 and GMX.
Also,
the data from these latter two
sites will be reexamined with the same goal in mind.
ESTIMATION OF RATIOS
The methods used up to the present time to estimate (1)
241 an ratios in soil and vegetation and
239-240 Pu to
(2) vegetation to soil ratios
of 239-2405, concentrations for paired vegetation-soil samples are
given in Gilbert et az.
(1975) and Rommey et az.
the estimated ratios themselves.
Gilbert et al.
estimated ratio
A
-
2, = > Y,
x
X,
Pim Yi?
was preferable to the average of the ratios
107
(1975), along with
concluded that the