that traffic be temporarily halted until the fallout has essentially
ceased.
CRITERIA IV
It is recommended that when the predicted fallout across a
main highway beequivalent to 10 roentgens or greater infinity
gamma dose, vehicles be held until the fallout has essentially
ceased.
Graph IV may be used in determining the advisability of
decontaminating motor vehicles.
The survey instrument should
be held with the center of the probe or center of the ionization
ra
a
rs
&
rs
ra
chamber four inches from any readily accessible surface.