Table 7 summarizes the long term biological removal rate constants of 6064
as measured in Marshallese adult males, adult females and one adolescent.
All
values listed are in reasonable agreement with earlier animal study data and
fall within the range of results reported for human data (ICRP68, Jo65, Si6éd,
Le72 and Sm72).
SUMMARY AND CONCLUSIONS
From urine bioassay and whole body counting performed for the Marshallese
population who had been relocated from Bikini Atoll, Long term biological removal rate constants have been calculated for 1376, and 6065.
The values presented
for 1376 are in agreement with previously reported values for adult males,
adult females and adolescents.
juvenile data base.
More data has been added for the 5-10 year old
Our data provides strong evidence that the biological remov~
al rate constant is related to the body mass by a simple logarithmic equation.
This is consistent with the concept that the mean residence time of a 1376. atom
in the body is proportional to the (total body mass in which it is present)
size of the body it passes through.
Finally, the 6004 long term biological removal rate constants reported
here are few in number but indicate that a long term campartment exists for
8060,
This will have an impact on the dose assigned to the ingestion of 6000.
The significance will depend om the number of compartments selected to describe
the retention function and the parameters used to describe the biological removal
.