Table 6, Objective Sampling Locations (TLD Study)
Number of TLD
Stations
island
Composited
0-5 cm
0-15 om
Samples
Samples
IRENE
-
-
-
JALET
29
hs
Lh5
“ALICE
10
50
50
TOLLE
11
55
22
CLARA
7
35
35
DAISY
11
55
D2
PEARL
18
90
90
Soil Collection and Terrestrial Radiation Survey Execution
The soil collection and terrestrial radiation survey efforts were
executed concurrently.
Early in the field execution phase of these prograns,
it was decided to abandon a rigid grid survey pian for the terrestrial radiation evaluation.
Utilizing the aerial survey information, portable instrment
readings were taken on the ground at each soil collection location.
Thus,
the aerial and ground readings could be correlated directly with the soils
data.
These would then be evaluated with the TLD information to produce an
integrated statement of the terrestrial radiation exposure rates for all
areas of the Atoll.
The physical effort utilized to collect both soil samples
and obtain instrument radings would then be minimized.
The execution of a program to collect several thousand soil samples end
obtain a similar number of instrument readings from an atoll with 43 separate
islands was no mean feat.
A brief discussion of what was involved in the
field effort is appropriate to engender an appreciation of the problems
encountered in conducting such a program and their effect on program desifn,
scope and execution.