-15-
noted: wi81.185 contributed the major portion of the radio-
activity in Scaevola leaves from Kusaie and in Messerschmidia
and Scaevola leaves from Ujelang (Lowman
tal, 1959), and
Zn 65 was predominant in fish tissues from Ponape and Utirik.
co?” was present usually in lesser amounts,
and co?8 and co®
were found only in a sample of clam kidney from Ujelang and a
fish liver sample from Utirik.
Other radioisotopes were
present only in a few samples.
C537,
for example,
was
found
in plants from Kapingamarangi and Utirik, cei41, 144_ 5,144 yy
a few samples from Kusaie,
Ponape and Ujelang,
and Mn°4 in
fish skin and gut from Ponape and clam kidney from Ujelang.
Fe59 was detected once only,
from Ponape.
in a sample of skipjack muscle
Department of Energy
Historian’s Office
ARCHIVES
The quantitative results of the gamma spectrum analyses
shown in Table 3 are based on analyses made approximately
eighteen months after the samples were collected; consequently
the shorter~-lived radioisotopes Zr 95—Nb?>
coP8
(71 days) Rut03_py103
(half life 65 days),
(40 days) and cel4t
(32 days) had
decayed to insignificant or non-detectable levels.
gram sample of yellow-fin tuna from Ponape, however,
were found in low amounts
In a 16l=Zr 9 =NbI5
(0.12 jyic/g at time of counting);
at time of collection the level of Zr95-nb9> would have been
40 pyc/g.
K4° was present in all samples analyzed.
In some