“
l
T
T
T
o RUMINANTS
e PIGS
30
=
—
(SIZE OF CIRCLE INDICATES
S
COUNTING ERROR)
°
aq
co)
Z
O
s
P=
oe
.
20
ao
—
8
Qo
a
wm
1
+
°
10 --
oO
°
oO
ou
1953
° |
1954
Oo
1955
—
Oo
9°
°
el
8
oO
g
|
|
1956
1957
Fig. 1—Strontium-90 in animal bone.
ef
90 |
7
T
T
7
gO -—
uw
|
J
—
+
_
—
+
70
a
o 60
+
+
3
= 50
=
SC 40k
oO
+
LLL
*
ft
++
20 |
CALCULATED AVERAGE —
+
+4+++
a
+
ASSUMING 24 MEGATON
++
AND TROPOPAUSE TO —1
40,000 FT. AT REPORTED
EFFICIENCY OF 25% —
p
+
+
NN averace “a
*
—
+
+
10 fr
ok
30
.
|
60
+
t
+ +4
NORTH
30
¢
a
O
30
LATITUDE
Fig. 2—-Stratospheric Sr®’ content.
298
L
SOUTH
60
L
30