Pol
ce?*/cs'3” acTiviTY
RATIO IN AIR.
ce'*4 /cs!3? activiTY RATIO
100 OO a ee OO A DO
90
*
=
30 |
<p
4
Ratio at t=O
—
o
Soviet October
20
—
& Debris other than
c
from Hardtock or
High Altitude
poe
=
-
'
a
High Altitude
o
—
Oo
S
£
-
oO
=
*
=
2
i
f
A
v
8
“
A
A
.
A
~~
.
A
"|
Hordtack I
-—+4 Ae
|
z
4
i pHordtock |g ptt
JFMAMJJASONDJFMAMJJASONDJFMAMJJASONDJ
1958
1959
1960
Fig, 8 -- The cel cg 8! activity ratio of air borne radioactivity
7"