Cleanup of soil containing Pu can be handled ona case-by-case
basis using the following:
ae
<40 pCi/gm of soil - corrective action not required.
b.. 40 to 400 pCi/gm of soil - corrective action determined
‘ona case-by-case basis considering all radiological
conditions.
c.
> 400 pCi/gm of soil - corrective action required.
DOSE ASSESSMENT AND CORRECTIVE ACTION ALTERNATIVES
For comparison with population dose guidelines, evaluations were
made for the following conditions:
»
Dose without cleanup.
-
Dose reductions obtained by diet modification.
»
Dose reductions achieved by removal of contaminated soil.
In addition, estimates were made for representative living patterns
plus corrective actions:
. Plow the village island, and gravel the village area for
radiation shielding.
»
Import pandanus and breadfruit from the southern islands
(ALVIN-KEITH) for inhabitants of the northern islands to
control ingestion of radionuclides.
»
Import pandanus, breadfruit, coconut and tacca from the
°
Import pandarus, breadfruit, coconut, tacca, and domestic
meat from the southern islands.
,
southern islands.
.
DISPOSAL OF CONTAMINATED MATERIAL
ee a
Contaminated material is composed of soil, debris and scrap.
At some places there is Pu including pieces of Pu metal. Contamination is distributed on and below the surface; some is in
rad waste burial sites.
Fission products and induced radioactivity found on such scrap and
debris, particularly-scrap metal, should be made unavailable to
the returning people. Possible approaches are:
a
TT
-
-
-
we wee
~
ome
NET ET i UE eee te ne Dames, CEERI?Ne
wt
ery
ee oa
ee
ge
”
OE ESwae
oa
A.
oe ST
ea.
.
*
ae
.
'
‘
~~
—we
——-
ameter
be
Py re toe SO ay ES ETS IR 2 ST Ta oeree
to
ane Ep St
a
gb hi ge nai
ne’
;
“err
{t
Tete
wi? Raee
ant
ee tap.
tA.
vat
‘
wy et tt Fy ee ede es hs ee
rh Fe pw
ee yous
eda” nets
oy
aes
“a4 *}
oR. ms
'? Rie le a‘.
4
tee
whe Bg
eh
nay
. OR es
ae
on er *
“yee!
myty
,