Polonium assimilation and retention in mule deer and pronghorn antelope
Excretion kinetics and tissue distribution of polonium-210 in mule deer and pronghorn were studied. Each animal in a captive herd of 7 mule deer and 2 pronghorn received an intraruminal injection of 4.4 ..mu..Ci of polonium chloride. Feces and urine were collected periodically over a 43-day period and daily excretion rate for each pathway was regressed as a function of time. Assimilation fractions of 0.40 and 0.51 were calculated for mule deer (n=2) and 0.60 for a pronghorn. Body burden retention functions were calculated from integrated excretion rate functions. Polonium burdens in muscle, liver, and kidney were calculated as a fraction of body burden from serially-sacrificed animals. Background tissue burdens in mule deer were comparable to those of other ruminants reported in the literature. Hypothetical cases were assumed which combined feeding rate of mule deer, forage concentrations of polonium, retention function, tissue burden fraction, and human intake to estimate human radiation dose. 26 references.
- Research Organization:
- Colorado State Univ., Fort Collins (USA). Dept. of Radiology and Radiation Biology
- DOE Contract Number:
- AC02-79EV10305
- OSTI ID:
- 5744190
- Report Number(s):
- DOE/EV/10305-8; ON: DE84001802
- Resource Relation:
- Other Information: Thesis
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANTELOPES
RADIONUCLIDE KINETICS
DEER
POLONIUM 210
TISSUE DISTRIBUTION
BIOLOGICAL PATHWAYS
BODY BURDEN
ENVIRONMENTAL EXPOSURE PATHWAY
EXCRETION
EXPERIMENTAL DATA
INJECTION
MAN
RADIATION DOSES
RETENTION
ALPHA DECAY RADIOISOTOPES
ANIMALS
CLEARANCE
DATA
DAYS LIVING RADIOISOTOPES
DISTRIBUTION
DOSES
EVEN-EVEN NUCLEI
HEAVY NUCLEI
INFORMATION
INTAKE
ISOTOPES
MAMMALS
NUCLEI
NUMERICAL DATA
POLONIUM ISOTOPES
PRIMATES
RADIOISOTOPES
RUMINANTS
VERTEBRATES
560172* - Radiation Effects- Nuclide Kinetics & Toxicology- Animals- (-1987)