me eree ee ee
were sampled.
A broader sampling pro-
of other program demands for air sam-
gram based upon the widely available
pling equipment resulting from delays
natural species, Messerschmidta and
in fielding the Bikini survey, no
Seaevolta, was also carried out to
attempt was made to establish an air
determine the intra-island variations
sampling program during this survey.
in the radioactivity of the vegetation.
Soil profiles were obtained
from the root zone of each tree that
SAMPLE PROCESSING
Was sampled to determine the concentration of radioactivity in the rootsoil environment.
Both leaves and
in June, nearly 1000 samples including
fruit were sampled so that leaf—to-
soil, vegetation, animals, and water
Fruit concentration ratios could be
were returned to LLL for processing
calculated.
and analysis.
WNonfood species were sam-
Because of funding
pled in the vicinity of food species
problems, the processing of the sam-
to provide information on species var-
ples was not begun until late Septem-—
‘dation in radionuclide uptake and to
ber; processing was completed by early
evaluate the use of concentrations in
November 1975.
nonfood species when no food products
discussed in detail in Ref.
are available for analysis to predict
time required to analyze these samples
the impact of human intake.
was considerable and was incorporated
This
Sample processing is
3.
The
approach was developed in the Enewetak
into a priority framework involving
survey because of the paucity of food
other programs.
species on the atoll.
problems prevented analysis of all
The soil sam
In addition,
funding
pling results and the concentration
samples, so time was required to
and correlation factors developed from
establish priorities for samples that
the plant-soil data have been published
were sent for analysis.
as a separate report.>
available and as assessment activities
This program along with the ground
As data became
began, additional samples that were of-
water program supplies the data base
particular importance for assessment
for assessing the long-term dose com-
purposes were identified.
mitment via food chains and rehabita-
additional funding became available in
tion of the atoll,
the summer of 1976,
BIKINI AIR SAMPLING AND RESUSPENSION
MEASUREMENT PROGRAM
samples were sent for analysis and
Because of limited support facilities, manpower, and time and because
hy
Upon completion of the field survey
5009957
When limited
second priority
incorporated into our assessment.
Our
data bank for the samples that were
analyzed was completed in October ]976.