TURNOVER AND CONCENTRATION OF RADIONUCLIDES IN FOOD CHAINS.
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Proliferation of nuclear technology and concern for radioactivity in the biosphere demand more sophisticated evaluations of future nuclear installations and procedures. Adequate analyses of radionuclide dispersion in the environment will require more substantial bioenvironmental information than is presently available. Frequently information known for one ecological system (e.g., arctic tundra) will not be applicable to other ecosystems (e.g., temperate or tropical forests). Only with sufficient ecological data can predictive models be developed that will enable assessment of the environmental consequences of radioactive contamination. A simple source-pathway-receptor model, analogous to the ecological food chain, requires pathway identification, data on assimilation by each link (organism) in the pathway, and determination of the biological turnover of each radionuclide. For acute release of radioactivity to the environment, evaluation of these variables is needed to predict time-dependent concentrations of radioactivity in organisms. For Chronic releases, concentration factors alone will often suffice. The biological concentration and turnover of radionuclides by animals are summarized in this paper. Data are presented for use in environmental models and correlation with species characteristics (e.g., body size) that allow estimation of absolute values for many different animal groups based on existing experimental data.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- NSA Number:
- NSA-24-012038
- OSTI ID:
- 4758703
- Journal Information:
- Nucl. Safety 11: 43-55(Jan-Feb 1970)., Journal Name: Nucl. Safety 11: 43-55(Jan-Feb 1970). Vol. 11
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ANIMALS/species characteristics of
in food chain in relation to radioisotope transport
determination of
for construction of environmental model
BIOLOGICAL MODELS/design for environmental contamination studies
determination of species characteristics in relation to radioisotope transport through food chains for
CONTAMINATION
CORRELATION
DESIGN
DETERMINATION
DIET
ENVIRONMENT
FOOD
FOOD CHAIN
FOOD CHAINS/radioisotope transport through
in relation to species characteristics for construction of environmental models
MOCKUP
N28210* --Life Sciences--Ecology--Interrelation
RADIOISOTOPES
RADIOISOTOPES/transport through food chains in relation to species characteristics for construction of environmental models
STATISTICS
TRANSPORT
USES
VARIATIONS