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-~2The materials collected were placed in plastic bags at the
time of collection and taken either fresh or frozen to the
Eniwetok Marine Biological Laboratory.
There the samples were
weighed and dried for shipment to Seattle.
Ashing and counting
were completed at the University of Washington.
Sample prepara-
tion and counting methods were similar to those reported in
Wr-616 (UWFI-33).”
Extreme care was taken at all stages in the preparation
and counting of the material to avoid contamination.
No correc-~
tion was made for decay; this factor, estimated from decay curves
of Eniwetok and Bikini materials, would be between 1.1 and 1.2.
The results of counts of radioactivity of biological
samples collected at Ponape on December 15 and 16,
listed in Tables l,
2 and 3.
1954,
are
Trace amounts of radioactive
materials were found in most foodstuffs.
As is often the case,
the marine plankton contained the highest counts--12,500 d/m/g
wet weight and 2,520 d/m/g wet weight--for the samples from the
two nets fished.
Special attention should be called to the radioactive
content of some of the tuna fish livers.
The average count
was 500 d/m/g wet weight for liver, although some yellowfin
tuna livers contained twice this amount.
*
=
rf
Coe,
“Radiobiological studies at Eniwetok before and after Mike
Shot."
Lauren R. Donaldson.
University of Washington,
(Confidential)
Applied Fisheries Laboratory,
Seattle, Washington,
June 1953.
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