182
DIETARY RADIOACTIVITY INTAKE FROM BIOASSAY DATA
Tuble 2. 1974 Total body activity: activity excretion and activity ingestion rates
ID
137
Sex
ties Daily Urine
Cs Body Burden
Ingestion Rate
Bi
F
2.2 x 10? Bq(.059 uci)
19 Bq/d
BLL
4
5.8 x 10? Bq (.16 Ci)
88 Bq/d (2,400 pCi/d)
750 Ba/d (20,000 pCi/d)
B35
M
3.4 x 10? Bq .092 uC1)
52 Ba/d (1,400 pCisd)
430 Ba/d (12,000 pci/d)
Bass
F
3.4 x 10? Bq(.092 —ci)
120 Bqa/d (3,200 pCi/d)
1400 Bq/d (34,000 pCi/d)
B45
“
6.2 x 10> Bq (.17 uci)
83 Ba/d (2,200 pCi/d)
630 Bq/d (17,000 pci/d)
BSL
M
8.2 x 10? Bq (.22 uci)
31 Ba/d
--
mean
M+F
9 x 10? Bq (.13 uci)
66 Ba/d (1,800 pci/d)
This is greater than the previous estimate
of 1073-1850 Bq d7' (29-50 nCi d“')(Ro77) and
87 Bq/d (2,400 pCi/d)
(840 pCi/sd)
from
Bq/d (
—
pCisd)
500 Bq/d (14,000 pci/d)
available data
for
1974
(Con75). This value indicates the availability of
dietary items containing "Cs at this time.
Appropiate changes in the uptake regime
used for internal dose caiculations have been
made to reflect the increasing uptake exhi-
to predict the dose committment underestimates the intake of ’Cs by ingestion.
Table 2 shows the mean daily ingestion as
4
(510 pCi/d)
calculated
indicates that the dietary model currently used
1
13s Daily Activity
ActivityExcretion Rate
Table 3. Sequential urine activity concentrations for "Cs and “K in single
zs
void samples
4a
é
Sample
ID #
Date
137 og
40x
6118
1-23-79
121
Ba/g (3280 pCi/e)
83.4 Ba/g
(2250 pCi/e)
"
1-25-79
119
Sq/g (3210 pCi/g)
34.4 Base
( 930 pCi/p)
,
"
1-26-79
79.2 Ba/g (2140 pCi/g)
43.3 Ba/pe
(1170 pCi/g)
‘i
"
1-27-79
148
Bqa/g (4010 pCi/g)
38.9 Ba/t
(1050 pCi/s)
j
"
1-28-79
182 Bq/g (4910 pCi/p)
«57-4 Bafg
(1550 pCi/g)
3
6112
1-22-79
72.2 Ba/g (1950 pCi/sg)
35.8 Bqa/g
( 968 pCi/e)
"
1-23-79
298
Bq/g (8060 pCi/ 2)
72.9 Ba/g
(1970 pCi/g)
"
1-24-79
229
«~Ba/e (6190 pCi/g)
56-2 Ba/e
(1520 pCi/g)
"
1-27-79
179
Ba/t (4850 pCi/¢)
109
Ba/g
(2950 pCi/g)
3
"
1-28-79
234
Bq/t (6330 pCi/L)
65.5 Ba/e
(1770 pci/g)
;
6064
1-22-79
66.2 Ba/et (1790 pCi/g)
54.0 Bqa/e
(1460 pCi/f)
"
1-23-79
55.1 Bqa/g (1490 pci/e)
43.7 Bq/g
(1180 pCi/s)
.
1-25-79
90.7 Ba/g (2450 pCi/¢)
41.8 Bafg
(1130 pCi/g)
"
1-27-79
77.7 Ba/g (2100 pCi/e)
54.4 Ba/g
(1470 pCi/e2)
"
1-28-79
77.7 Ba/t (2100 pCi/g)
38.9 Ba/g
(1050 pCi/g)
Pd
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