TABLE N.12 #2 PLUTONIUM-23.: FRACTION OF ORAL DAILY INTAKE EXCRETED IN URINE ®/>/ _ It is assumed that the daily intake is constant over the period specified. Duration of exposure Fi = .001. Jones (years) Moss (old) (new) 1 3.62 x 10-5 5 6.2 x‘ 10-5 10 8.61 x 10-5 1.71 x 10-4 20 1.31 x 10-4 2.3 x 10-4 29 1.67 x 10-4 2.92 x 10-4 §.42 x 1075 -- a/ fhe table's data were supplied by Dr. E. T. Lessard of the Brookhaven National Laboratory. I have used the Moss factors (Moss, 1988). b/ The intake can be calculated by dividing the urinary excretion by the factors given. For example, after 20 years of intake, the daily excretion is found to be 3 x 10-5 picocuries. Then the intake is: (3 x 10-5)/ 2.3 x 10-4 = .13 picocuries/day. 80