Cleanup of soil containing Pu can be handled ona case-by-case
basis using the following:

a.

<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
southern islands.
»

Import pandanus, breadfruit, coconut, tacca, and domestic
meat from the southern islands.

DISPOSAL OF CONTAMINATED MATERIAL
Contaminated material is composed of soil, debris and scrap.
At some places there is Pu including pieces of Pu metal. Con-

tamination 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:

Select target paragraph3