A single
and
soil
sample
Bokdrolul
showed
approximately
85;,
-;CS
15% ‘°Co.
No edible
Since
plants
were
the maximum
the exposure
CHARLIE
on any of these
rate
reductions
found
were
for
not
islands.
this group
was
50 ~!?/hr,
projected.
(NAM)
by Figure
in the northwest
Bikini
with
of the
island.
nuclides
A single
rate
Radioactive
scrap
reading
radioactive
at sea.
Less
radioactive
Although
soil
sample
showed
the
of about
levels
slightly
found
taken
higher
near
than
50% 1S7CS,
on
side
aree of
of gamma
emitting
33% ‘)OCo, and
of time
those
the northwest
in a background
concentration
as a function
on Ntrr,,located
17% ~~ssb,
for this
composition
15.
was found
obtained
scrap
of 500 ~R/hr
reduction
in Figure
radiation
are
of the atoll,
to be composed
is given
viously
corner
200 ~R/hr
exposure
maximum
14, the external
one “hot spot”
approximately
there
found
exposure
rate
As indicated
The
from
at several
on any piece
reading
in excess
radioactive
material
locations
on the
of scrap was
of
was
100 ~R/hr
buried
island.
All
500 ~R/hr.
(gamna)
was
on land with
The
!x:ried
the non-
debris.
this
is the third
utilized
largest
as a source
are at present
and one which
of food materials
edible
no
island
land
plants
by the
or coconut
had be~?n pre-
Rikinian:;,
crabs
on the
island.
A sample
of fresh
by the Laboratory
Tritium
levels
water
frcm
Nam,
for Radiation
in all other
taken
in 1964
Ecology,
water
and supplied
contained
samples
from
to S!ARI-!L
15 pCi of ~A/ml.
various
islands
were
less than 0.4 pCi/ml.
A sample
contained
137CS
from
a Portulaca
1.5 pCi “of 3H/ml
in the plant material
plant
(high water
of extracted
content)
water.
was 210 pCi/g
The
taken
in June
concentration
and of ~OCo
was
3.8
1969
of
~Ci/g
wet weight.
I
I
25