NV/HEG Mtg.-Sept. 26-27, 9968
Page 7
To be effective, protective actions must be not only operationally feasible but also prompt.
The substitution of uncontaminated hay or milk
must be in sufficient quantity.
days of milk substitution.
iodine but
There is a 90 percent reduction for 20
People in an affected area can be given
in a large population this involves risks to individuals
who are pregnant.
used routinely,
However, it is believed that where iodized salt is
the uptake of radioactive iodine
is reduced.
It should
be noted that the Federal Radiation Council concluded that such protective
actions are not justifiable under conditions most likely to occur to
avert "individual" doses of less than 30 rads to the thyroid.
But since
the "individual" varies from the "average suitable sample of the population" by a factor of 3,
protective action is justifiable at the 10
rad levels--the dose that might be received if protective action were
not taken.
There is however some leeway because the FRC allows that
level of 10 rads to be raised if the protective action will have a high
impact on the community in question.
-
*
SNL
There was some discussion regarding the justification of raising the
I-131 dose NV/HEG standard from 1.5 rads per year to a less restrictive
figure more consistent with national standards in the event of a resump-
Captain J. E.
Dieckhoner, AFWL, Kirtland AFB,
discussed te U.S. Air
Force technique for predicting I-13] ground deposition.
; s : R 7
oo
AIR FORCE PREDICTION TECHNIQUES FOR I-131 DEPOSITION
yrrns,
ream
tion of atmospheric testing--perhaps to the PAG level of 10 rads.
This system
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