-15-
noted: wt81.185 contributed the Major portion of the radioactivity in Scaevola leaves from Kusaie and in Messerschmidia
and Scaevola leaves
from Ujelang
(Lowman
et
al.
1959),
and
gn°> was predominant in fish tissues from Ponape and Utirik.
co?’ was present usually in lesser amounts,
and co78 and C099
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.
cs137,
in plants
for example, was
from Kapingamarangi and Utirik,
a few samples from Kusaie,
found
cel41,144_5,144 in,
Ponape and Ujelang,
and m4 in
fish skin and gut from Ponape and clam kidney from Ujelang.
Fe>? was detected once only,
in a sample of skipjack muscle
from Ponape.
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 Zr95—Nb??
C038
(71 days) Ru?93_py193
(half life 65 days),
(40 days) and cel4l
(32 days) had
decayed to insignificant or non-detectable levels.
Ina 16l-
gram sample of yellow-fin tuna from Ponape, nowever ae?
ARCyIVES
were found in low amounts (0.12 pyc/g at time of counting);
at time of collection the level of zZr95-nb95 would have been
40 wuc/g.
K*9 was present in all samples analyzed.
In some
/G