752
HARDY, RIVERA, AND CONARD
Table 3— THE RETENTION OF 8'Csg IN RONGELAP FOOD
(MEASURED BY WHOLE-BODY COUNTER AND FROM EXCRETION)
AND THE RETENTION OF *Sr (MEASURED FROM EXCRETION)
Days after
ingestion of
Rongelap food
;
‘Cs retention, ne
Whole-body counter
1
2
3
4
7
07.90
57.10
99.71
05.64
o3.21
11
18
20
25
30
91.00
46.83
32
42.56
10
39
40
46
30
53
60
70
74
80
88
90
45.38
38.88
36.80
36.16
32.88
27.73
29.68
100
22.11
110
120
19,19
140
150
160
170
180
184
190
14,34
9.37
90Sr retention,
ne
53.34
2.17
47.22
1.98
42.10
1.86
37.71
1.76
33.73
1.66
30.42
1.60
24,97
1.44
22.96
1.37
19.38
17.91
1.28
1,21
27.53
21,02
105
120 |
Excretion
1.52
1.32
16.56
1.20
14.22
1.16
15.26
13,22
12.33
11.50
1.17
1.14
1.14
1.14
10.81
been observed by other investigators 14,16,17 was not measured in this
study since the acute-ingestion period was longer than the expected
half-life of the short-term component.
The Sr retention curve as determined from excretion data
(Fig. 6) does not describe a single exponential function as is the case
with ’Cs. The whole-body retention of Sr is more closely repre-
sented by a sum of exponentials ‘*:'* Or a power function.” In this