72
EFFECTS OF IONIZING RADIATION
Table 5.4.—Gross Beta Activity in Urine of People From Ailinginae and the Americans
AILINGINAE
Day 46 Post DETONATION
Case No.
8
|
\
|efingML MiteRS |
|
Age<5 yrs
8
44
Mean. ._...------
|
Age 6-15 yrs
|
Mean. _.-...---.-
150
217
150
217
sein
1
28
|
at
43
45
51
”
°
|
|
|
|
|
401
|
3
|
|
5
6
|
8
ee
88
275,
126
nen
hes
7
680
1202
om
10
850
oes
754
680
410
“
~
Mean ---------- (2
|
0
400
2
|
1, 970
|
I
"
0
8248
+:
1,260
40
|
1,340
|
0
78
0
(osetteeee
14
:
15
16
19
/
,
i
550
353
1, 180
1, 160
1, 380
0
750
187
/
|
|
Mean_._....._..-
830
q
|
23
24
25
28
1,380
1,930 |
1,300
|
é
965
438
720
|
oo
28
1, 810
Beye
I
|
733
900 |
weeeeee
|
:
820
1,410
20
|
1,224!
| 385”
|| Yga0
9
1, 460
PO
H
0
i
12
13
|
|
"650 |
7
°
558
oeNes(uu | obrasRs
4
;
“°
720
29
|
|
370
|
16
Cag No.
|
|
5381
AMERICANS
Day 44 Post Detonation
|
1, 070
|
466
0
323
5
OO
—_—.
1, 220
1, 138
wien ee
—
9
309
—_—_—
Values corrected for decay.
beta activity at 45 days post detonation (Table
5.5).° The predominant radionuclide is Sr®,
which contributes 42 percent of the total beta
activity at this time.
Assays of fissile material nade on pooled
samples of urine were all negative within expertmental limits.
The early urine samples analyzed by the
LAS(collected 15 days post detonation) contained fair amounts of radioiodine in addition
to the alkaline and rare earths.
On the basis of the radtochentical analysis
of the urine, the body burden (the radioisotopic
Qeposition in the tissues) was estimated. The
ratio between the activity of the urine and the
wmount of isotope fixed in the body is required
for this calenlation. However, few ratios are
available for the deposition of the various radioelements in humans, so Chaf it was necessary
to utilize ratios obtained from animal studies.
Of the animals collected on Rongelap, the pig
wis selected as the closest to the human tn size
and metibolism. A detailed study was therefore made on the excretion of these animabs and