An extensive racdiccion suzvey of the islands of Bikini
Atoll has revealed several interesting fiscercs of the
. 4
fnew at
residual
environmental
fallont
xa
Oue
area
ares
2
&@
number
AUMs.eST
ae TS
ne
we
=
Sicticon
violas in~ @= Letivy
Local
:
CG.
aa
yoars
mote
BOC
.
Get
fueled
ee
Tem ee
a WS ee a ae
Pacific where more than 20 nucleas tests were concGucted fzom
19465 to 1953.
The survey,
conducted in May 19687,
incluced
measurements of the externai racic
tion of the principal isc:opes contributing to the total
external exposure rates on eicn island of the atoll.
Eecause
of the nigh intensity of the radiation flielés generated by
tne tests,
we wore cole to detect at the tine of this survey
many long-lived fission anc activation sxcducts waich were
7%
undetectable or unnoticed in previcusiy surveyed Fallout
*.
©
rh
G@oOLON
wh
QO
Oo
?
Oo
i
uw
tw
By
i)
to relate the residual sacliztion fields
vest ground zeros,
t WES @lso possible
ctt
areas because of their trace presence.
<
,
on the atoll to
<0 meteorological
conditions azifecting Local Fallout at che time of the tests,
nwa
and to weatherine and radicactive cecay srccesses occurring