24
4.
The contamination of surface waters by run-off from contami-
nated land areas 2robably would not exceed the initial contamination
from direct deposit of fallout in exposed watez sources.
5.
Water-softening and water-purification plants would provide
sufficient decontamination of the water to reduce significantly the
absorbed doses to body organs.
6.
In the postattack environment, water-source contamination
would not be as critical a problem as the distribution of water for the
survivors in damaged cities.
The other study that I want to mention relates to the contamination
of human food following nuclear attack.
It is the one that was performed
for OCD by Isotopes, Inc.
The following diagram (next page) illustrates the approach.
Radio-
activity produced in the attack is separated into three categories -- that
injected into the stratosphere, that into the high troposphere, and that
into the local atmosphere.
Estimates of the amount and nature of local
fallout were based on Dr. Miller's models.
Fallout of stratospheric
debris was obtained from studies performed for the Defense Atomic
Support Agency under Project Stardust.
Consideration then was given,
using the local fallout data, to the determination of contamination of
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