VICTOR (LUKOJ) AND WILLIAM (JELETE)
These two agiacent islands located at the southwest end of tre atoll
are very similar
in vegetative cover and Lackground radiaticy ‘evels.
In general, the background ranges fron 10 tc 180 .k/hr on Luke? and
10 to 150 uR/hr on Jelete (see Figures 10 and 11).
No radioactive debris
was found on either island.
A soil sampie taken on Jelete snowed the primary contaminants 73 be
'37¢5 (75%), ©8Co (12.5%) and ?92MRh (12.5%}.
Figure 12 indicates the
projected exposure rate reductian based uocn these percentages.
This
sample also contained 82 pCi/g of 2995249 and 42 pCi/g of *7*Pu
(air-dried weight).
There are few coconut trees on either island.
A single sampie from
Jelete gave the concentration of }37Cs to be 5.4 pCi/g wet weight.
YOKE (ADRIKAN), ZEBRA (OROKEN), ALPHA (BOKAETOKTOK), AND BRAVO {BOKDROLUL)
These four small islands located along the western side of the atoll
displayed uniformly low levels of background radiation.
Maximum ex-
posure rates due to gamma radiation were:
Adrikan
- $0 yR/hr
Oroken
- 30 4R/hr
Bokaetoktok - 15 yR/hr
Bokdrolul
- 25 yR/hr
No radioactive scrap was encountered on any of these islands.
itradi-
tionally the islands are used by the Bikinians for the collection of
Dirds and eggs which are abundant.
Samples of birds, egqs, and crabs
have been collected by the Laboratory of Radiation Ecology, School of
Fisheries, University of Washington.
Two soil samples taken on Oroken in the same location indicate $37Cs
to be 20-25% by concentration of the gamma emitting radionuclides.
One
sample (surface to one inch deep) showed !25Sb to be about 75% of the
total and ©°Co about 5%, while in the other fone inch to six inches
in depth) 125Sb was not detectable by gamma spectroscopy, 6°Co contri-
buted about 50% and 1} 92MRh the remaining 25%.
20
Sm 5009042