=
ar
nay
semple of a cubic meter of air a minute be=
ceuse this was necessary of very low concen=
trations of beryllium which were of interest
but the type of evaluation that we do requires that we get very cloce to the operator
to see how much is in the air that he may be
breathing,
Can I have the next slide, pleare?
This 1s the type of sheet we draw
on each operator in a plant.
It is made up
of several individual.operationa that the man
Goea at which we take samples in his breathing
zone as I showed you in the previous slide,
plus several locations where he ia apt to
epend enhour to two and a half hours to three
hours a day just walking sround pushing
buttons and generally managing things,
These sere all weighted against the
time and the final average figure is computed
in the number of times of permissible level
that the man is exposed to.
These data are used to correlate
with yearein data and with possible iliness
deta in the future,
The next thing that I think might
59