Document Details


Title:
ESTIMATION OF RADIONUCLIDE INGESTION: THE PATHWAY FOODCHAIN MODEL
Author(s):
WHICKER, F W [COLORADO STATE UNIVERSITY]; KIRCHNER, T B [COLORADO STATE UNIVERSITY]; BRESHEARS, D D [COLORADO STATE UNIVERSITY]; OTIS, M D [COLORADO STATE UNIVERSITY]
Subject Terms:
MATHEMATICAL MODELS; FOOD CHAINS; RADIONUCLIDE MIGRATION; NUCLEAR WEAPON TESTING; RESEARCH PROGRAMS; HUMAN POPULATIONS; COMPARATIVE EVALUATIONS; STATISTICS; SMALL BOY EVENT; DOMINIC II OPERATION; IODINE 131; MILK; GRAPHS; DATA; ACTIVITY LEVELS; STRONTIUM 90; DEPOSITION
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1987 Dec 31
Declassification Status:
Never classified
Document Pages:
0045
Accession Number:
NV0067445
Originating Research Org.:
COLORADO STATE UNIVERSITY
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THIS PAPER BRIEFLY DESCRIBES THE STRUCTURE OF THE DYNAMIC, SITE-SPECIF IC FOODCHAIN MODEL PATHWAY AND DETAILS ITS UTILITY FOR ESTIMATING RADI ONUCLEDE INGESTION BY RESIDENTS OF SEVERAL WESTERN STATES AFTER FALLOU T DEPOSTIION FROM NUCLEAR TESTING IN NEVADA. MODEL INPUT REQUIREMENTS ARE DESCRIBED AND IMPORTANT OUTPUT EXAMPLES ARE PROVIDED. THE BASIC OUTPUT OF PATHWAY IS THE TIME-INTEGRATED RADIONUCLIDE INTAKE BY HUMANS FROM ALL MAJOR FOOD SOURCES PER UNIT FALLOUT DEPOSITION (BECQUEREL PE R BACQUEREL METER E-2). OUTPUT SPECIFIC TO SEX, AGE, LIFESTYLE (DIET) , LOCATION (AGRICULTURAL PRACTICE), EVENT (CALENDAR DATE) AND RADIONUC LEDE MAY BE GENERATED WITH APPROPRIATE INPUT DATA. (CONTINUED) UNCERTAINTY OF MODEL PREDICTIONS, BASED ON "MONTE CARLO" SIMULATIONS U SING PUBLISHED OR ESTIMATED PARAMETER VALUE DISTRIBUTIONS, ARE DESCRIB ED AND EXAMPLES PROVIDED. RESULTS TO DATE OF A PARAMETER SENSITIVITY ANALYSIS, BASED ON A RANKING OF PARTIAL CORRELATION COEFFICIENTS, ARE REVIEWED TO ILLUSTRATE THE RELATIVE IMPORTANCE OF PARAMETERS AND ASSIC IATED TRANSPORT PATHWAYS. OUTPUT DATA FROM PATHWAY FOR IODINE 131 AND CESIUM 137 IN MILK ARE COMPARED TO CORRESPONDING PREDICTIONS FROM SEV ERAL WELL-KNOWN FOODCHAIN MODELS. PRELIMINARY EFFORTS TO VALIDATE PAT HWAY RESULTS WITH REAL DATA SETS ARE DESCRIBED AND SELECTED EXAMPLES I LLUSTRATED.


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