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St. George, we knew that they were exceeding predicted values at that
point, yet they were well below hazardous amounts.

It was more of a ques.

tion of precisely how much higher might the radiation levels rise and
how long would it require to take protective actions,
We decided to ask the residents of St. George to stay indoors, which
they did from about 0930 to 1130 at which time they were released,

Later

the lifetime exposure at St. George was estimated to be about 2.5 rads
from this fallout./>

In retrospect, and please be assured that evaluatin

in retrospect is much easier than prospect, it would appear that a large
fraction of the potential whole body dose was not eliminated by this evas
action.

Remaining indoors did minimize direct body contamination and in-

halation of radioactive debris during the period of time that it was fall
to the ground and it did provide a somewhat more controlled situation in
the event further action was deemed essential.
Again, the decision and action sound simple.
4500 persons involved, spread through the city.
at school.
business.

However, there were ab
Hundreds of children wer

Cars and trucks were moving about the city on their normal
This would be the first time that action would be taken with

such a large community and on short notice.

Instructions to evacuate im

diately might induce a panic with its attendant hazards and would, in fac
bring many persons out of their homes, schools, and offices into the open
during the time when the fallout was occurring most abundantly. DOEARK
actually do more harm than good, yet if action were needed it should come
quickly to be fully effective.

But was any emergency action really imper

tive or what action was best when evaluated against potential risks?

Select target paragraph3