62
TABLE N.7 #4
PLUTONIUM-239:
FRACTION OF ORAL DAILY INTAKE EXCRETED IN URINE 9/5/
It is assumed that the daily intake is constant
over the period specified.
Elapsed interval
Jones
(years)
1
3.62
x
10-5
5
6.2
x
10-8
8.61
x
10-5
20
29
Moss
(old)
10
«/
Fi: = .00l1.
|
(new)
5.42
x
1075
--
1.71
x
1.31 x 10-4
2.3
x 10-4
1.67
2.92
x
x
10-4
1074
10-4
The table's data were supplied by Dr. E. T. Lessard of the Bgookhaven
National Laboratory.
I have used the Moss factors (Moss, 1988).
b/ The intake can be calculated by dividing the urinary excretign by the
factors given. For example, after 20 years of intake, the daily
excretion is found to be 3 x 10-5 picocuries.
(3 x 10-5)/ 2.3 x 10-4 = .13 picocuries/day.
Then the intake ig: