imported food.
There are, of course, other options
As was discussed in the
chapter on dietary and living patterns,
for reducing the dose via the terrestrial!
imported foods are very likely to form a_
pathway.
significant fraction of the diet (possibly
One option would be to dig large
area pits on all islands which would be
85% or more) and, if so, a plan to con-
filled with "clean" soil from another
trol the production of pandanus and
source; pandanus, breadfruit, coconut
breadfruit, or at least the location of
and other plants could then be grown and
harvested from these "clean" soil areas
throughout the Atoll,
The subsequent
reduction in dose would lead to doses
from 90... equivalent to or less than
those predicted for the southern islands.
production, could essentially reduce dose |
commitments to levels near U.S. external background.
BEST AVAILABLE COPY
External Dose —~ The integral 30 yr
Another option would include rernoving
external dose is reduced between 30 and
the surface layer of soil (0-20 cm) from
70% for living patterns Ill, IV; V, and
the northern islands and replacing it with
VI as aresult of plowing the village
uncontaminated topsoil,
island and graveling the village area
This approach
should also lead to doses equal to or
where people will spend a majority of
less than those predicted for the southern
their time.
islands.
This form of remedial action
These procedures are fairly ,
“straightforward, relatively easy to
would in the process reduce the dose via
implement, and lead to the largest per-
the inhalation pathway,
centage reduction in external dose.
This alternative,
An
of course, requires the removal and
additional reduction in external dose of
disposition of an enormous amount of
approximately 16% could be attained if
soil, and ocean dumping, which would
all islands were plowed; however,
provide the large reservoir needed and
implementing such 2. program in order
minimizethe potential man-rem,
to achieve the additional slight reduction
would probably be the best and easiest
method of disposal,
This approach is
certainly not one of the easier alternatives.
Efforts to maintain a high calcium diet
could also be implemented to reduce the
uptake of 90¢,., however, remedial
is certainly another order-of-magnitude
problem.
In any case, any plan to plow
all islands would have to receive careful |
scrutiny to determine the possible effects
upon the island and Atoll ecology.
measures to reduce the uptake in the
plants or food product would be more
effective and desirable as the primary
preventive measure,
.
Of course, the dose commitment
would be largely eliminated if no pandanus,
breadfruit, or coconut were planted on
the Atoll for another 20 to 30 yr andif
the diet were to consist of predominantly
Marine Food Chain — The mmaringfod
chain would appear to require
no remedial
.
sarc
—————————
—
action (see marine food chain chapter ).
eg
The marine pathway contribution to the
30-yr integral dose for the modified case
and for agriculture on southern islands
(Table 210) is less than 4% for whole