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The mine operators at the Salt Lake
City meeting naturally got their hackles up
and ettacked very vigorously end pointed out
. aYter some discussions by some mining engin-
eers at the University of Uteh that these
peorle odviocusly bed never been in a urene
Jum mine,
That thelr echenes for ventilating
uranium mines were bared on standard corel mine
type of excovetion with standard tunnels at
Gertain intervals snd nice ratterns whereby
you cen ventilate it wherens the uranium mining
Anductry 4s peculfer in that the veins come
and go and they follow a very tertuous course,
so thet 10 is impossible to plan the mine and
set up the ventiletion sccordingly.
This view was challenged hovever,
by Duncan Eolliday vho pointed out that ina
number of ences there peorle really Just havee
n't tried and it is not nearly as bad ag it
looks, superficielly,excent in certain ceses
vhere the ore henpens to be rich and the flow
rate of radon from the core body into the
cavity of the mine is co high and it's ree
latively insccescible ¢& that it is very diffi-~
cult to ventilate adequctely,
DR. GLASS:
Vhat sort of veekly
exposures do thece miners get?
ZO