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Title: Analysis of the NAEG model of transuranic radionuclide transport and dose

Abstract

We analyze the model for estimating the dose from /sup 239/Pu developed for the Nevada Applied Ecology Group (NAEG) by using sensitivity analysis and uncertainty analysis. Sensitivity analysis results suggest that the air pathway is the critical pathway for the organs receiving the highest dose. Soil concentration and the factors controlling air concentration are the most important parameters. The only organ whose dose is sensitive to parameters in the ingestion pathway is the GI tract. The air pathway accounts for 100% of the dose to lung, upper respiratory tract, and thoracic lymph nodes; and 95% of its dose via ingestion. Leafy vegetable ingestion accounts for 70% of the dose from the ingestion pathway regardless of organ, peeled vegetables 20%; accidental soil ingestion 5%; ingestion of beef liver 4%; beef muscle 1%. Only a handful of model parameters control the dose for any one organ. The number of important parameters is usually less than 10. Uncertainty analysis indicates that choosing a uniform distribution for the input parameters produces a lognormal distribution of the dose. The ratio of the square root of the variance to the mean is three times greater for the doses than it is for the individual parameters. Asmore » found by the sensitivity analysis, the uncertainty analysis suggests that only a few parameters control the dose for each organ. All organs have similar distributions and variance to mean ratios except for the lymph modes. 16 references, 9 figures, 13 tables.« less

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
6308484
Report Number(s):
UCRL-91781; CONF-830610-6
TRN: US0302924
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Nevada Applied Ecology Group transuranics (and associated radionuclides) Information Conference, Las Vegas, NV (US), 06/28/1983--06/30/1983; Other Information: PBD: 1 Nov 1984
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; LYMPH NODES; SENSITIVITY ANALYSIS; ALPHA DECAY RADIOISOTOPES; BODY; DIGESTIVE SYSTEM; PLUTONIUM 239; ENVIRONMENTAL EXPOSURE PATHWAY; RADIONUCLIDE KINETICS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; DOSES; ENVIRONMENTAL TRANSPORT; EVEN-ODD NUCLEI; HEAVY NUCLEI; ISOTOPES; MASS TRANSFER; NUCLEI; ORGANS; PLUTONIUM ISOTOPES; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES; 510302* - Environment, Terrestrial- Radioactive Materials Monitoring & Transport- Terrestrial Ecosystems & Food Chains- (-1987); 560161 - Radionuclide Effects, Kinetics, & Toxicology- Man

Citation Formats

Kercher, J.R., and Anspaugh, L.R. Analysis of the NAEG model of transuranic radionuclide transport and dose. United States: N. p., 1984. Web.
Kercher, J.R., & Anspaugh, L.R. Analysis of the NAEG model of transuranic radionuclide transport and dose. United States.
Kercher, J.R., and Anspaugh, L.R. Thu . "Analysis of the NAEG model of transuranic radionuclide transport and dose". United States. https://www.osti.gov/servlets/purl/6308484.
@article{osti_6308484,
title = {Analysis of the NAEG model of transuranic radionuclide transport and dose},
author = {Kercher, J.R. and Anspaugh, L.R.},
abstractNote = {We analyze the model for estimating the dose from /sup 239/Pu developed for the Nevada Applied Ecology Group (NAEG) by using sensitivity analysis and uncertainty analysis. Sensitivity analysis results suggest that the air pathway is the critical pathway for the organs receiving the highest dose. Soil concentration and the factors controlling air concentration are the most important parameters. The only organ whose dose is sensitive to parameters in the ingestion pathway is the GI tract. The air pathway accounts for 100% of the dose to lung, upper respiratory tract, and thoracic lymph nodes; and 95% of its dose via ingestion. Leafy vegetable ingestion accounts for 70% of the dose from the ingestion pathway regardless of organ, peeled vegetables 20%; accidental soil ingestion 5%; ingestion of beef liver 4%; beef muscle 1%. Only a handful of model parameters control the dose for any one organ. The number of important parameters is usually less than 10. Uncertainty analysis indicates that choosing a uniform distribution for the input parameters produces a lognormal distribution of the dose. The ratio of the square root of the variance to the mean is three times greater for the doses than it is for the individual parameters. As found by the sensitivity analysis, the uncertainty analysis suggests that only a few parameters control the dose for each organ. All organs have similar distributions and variance to mean ratios except for the lymph modes. 16 references, 9 figures, 13 tables.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Nov 01 00:00:00 EST 1984},
month = {Thu Nov 01 00:00:00 EST 1984}
}

Conference:
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