178
SOFT
TTT
oT
Ty
to TT
—
|
|
|
(7)
ALTITUDE, KM
4
|
25 [—
A >0.15 p RADIUS
X 0,02 TO 0.15 p RADIUS
@ <0.02 p RADIUS
ptt
iitl
197!
aiil
+
10!
iif
10?
py
ail
i
10°
Mce/%S- ACTIVITY RATIO
ity
104
TT TT?
“Tit atig
TT TT?
TUT TT
bt
p
y
1
ex
{|
|
|
a
ALTITUDE, KM
|
4
|
BB
30
|
10°
pie
107!
30
pitt
10°
|
iit
10!
1iil
957 -/95- ACTIVITY RATIO
10°
tit
103
rT
20 -—
|
7
ALTITUDE, KM
Le
10
a
5K
_
0
1072
|
ttl
107!
|
L
tut
10°
957 -/“4Ce ACTIVITY RATIO
L
L
{i
10! .
Fig. 8—Activity ratios for impactor —filter collections over Minneap-
olis, Minn. (45°N 93°W), on Aug. 15, 1963.