d
;
0)
,
EFFECTS OF IONIZING RADIATION
of the 24 day value. These data indicate that
most of the activity is associated with short-
The residual total beta activity found in the
two larger fish at 4 months post detonation av-
lived isotopes. The initial drop in activity is
very rapid, and after 45 days the decay curve
is essentially that of Sr, the most abundant
of the longer-livect elements deposited.
;
:
eraged 2.5 pe (Table 5.10). There was, at the
sametiie, about twice as much gammaactivity.
The fish were collected 86 days post detonation, and the drop in activity between that time
:
Table 5.10.—Beta and GammaActivity of Fish From Rongelap Three Months Post Detonation
FisH #1 (802 Gat)
Ba, &r
ano Rake
Eartit
TOTAL
Activity
(PERCENT)
Gross Acti¥sTr,
we
Brera
Gauua
RApiOcHEMICAL ANALYSIS (FLRCENT) UN Ha, Se anv Re
FRACTION
Srit
Rare
Fanti
Bale
Head. ....22.-- eee eee ...!|
0. 568
1. 26
9.9
Scales + Fins+ Tail.........!
@ 500
0. 58
95
Viscera....- 22-23 eee ee eee
0. 900
2. 36
48.0
Gills. eee eee eee eee eee
Q. 160
0.43.
7,8
13.9
6.7
79.4
Remainder of Body.......-.
0. 596
1.78
§. 3
45.2
Li. 2
43.6
Total. ........0220-- | 2.724
6.41
!
38. 3
9.6
52.1
U4
9.9
72.7
:
1. 4
0.6
58. 0
.
:
Fisu #2 ($07 Gat)
.
:
Gross ACTIVITY. uC
BETA
Gass
—
'
Fisn #3 (ifs Go
0. 23
0.015
0. O17
Viscera. 2 eee eee
I. 620
20414
0.115
0. 205
Gills. ole eee lee eee :
Muscle.....lo2....2202.8-
|
Total. ......2 22. eee. '
;
.
;
'
ob
0. 101
Skeleton... eee eee ee eee i
.
GHoss ACTIVITY, uC
Beta
Gasaa
Head. ..... 2.2 ee eee ;
Scales+ Fins+ Tail wee eeeeee
+
0. O67
0. 23
0. 043
0. of
0.15)
0. 53
0107
ga78
0. 058
038
!
!
358
|
L
0. 084
0. 023
0. 011
9030
0. 070
0. 038
O30)
“
0. O74
—_——
_
0.461
Cuam fl
Totat Beta Activity 6 4X10 pis
—— eee
RaMocree MICAL ANALYSIS
PERCENT
or Total.
ACTIVITY
KHADIOKLEMENT
ore ee ee
ee
21.4
Ray ee eee
Ouher. oo... eee eee eee
Sr? ee eee wees
Bale ool pr cc eee essen eee
Rare Earths..../..-..-----0---
32. 4
tl. 4
07
0. 7
ad. 4
J
-Surnples collected two months post detonation.
9002185 _
Meee