per hour)
Ra LR BEPNRe
oF
30:
*
s
\ oe
=
J
oO
RADIATION
LEVEL
(microroentgens
A nem megaman re amet SAGE oe nem nearer wm ee tench eee cn enSeeALane ach
35.
5
e
a
=“
—e
meen,
Compton
1
O
e
e
18
a)
°
20
22
°
24
BAROMETRIC
26
PRESSURE
6
s
28
30
(inches Hg)
Figure 1. Variation of environmental radiation dose rates with
barometric pressure. The lower curves are for cosmic radiation
intensities alone. The number of observations incorporated in
each point are shown in parentheses.
observations on Pikes Peak.
moe
-
‘sé
aur Ms
“Se .
8
BARS
on
~
.
.
7
BNA ~~ s “Naa Sg NAR
Points marked "P" are
we
>
~
ee
~A ae
STs
et
Me
Dee
OSA
TS,
|—
SA aN RA SS