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Purpose:
DRAFT
Soil Survey
The soil samp] ing program was designed to identify the primary
radionuclides contributing to the external gamma exposure and to determine
the geographical distribution of these radionuclides in the soil on Bikini
and Eneu Islands of the Bikini Atoll.
Every possible effort was made to
integrate this sampling program with previous programs to avoid undue
duplication of effort.
The actual number of samples and their specific
collection sites were a function of (1) the expected activity levels,
(2) future home-construction plans, (3) future agricultural plans, and
(4) the number and locations of recent soil samples collected by other
programs.
Methods and Measurements
Two types of soil samples were collected for analysis:
(1) a 15-cm-
deep surface core sample of 60 cm? area, and (2) a profile collection based
upon sidewall sampling in a trench in which samples of 100 cm? area were
collected at 15-cm depth increments to a total depth of 90 cm.
For purposes .
of planning the survey, Bikini Island was divided into the north, central,
and south sections along the respective second baseline roads.
Eneu was
divided into the north and south sections divided by the airstrip.
The
approximate numbers of surface and profile samples collected within these
sections are:
9009819