Document Details


Title:
SOIL-TO-PLANT CONCENTRATION FACTORS FOR RADIALOGICAL ASSESSMENTS ( FINAL REPORT; MANSCRIPT COMPLETED: OCTOBER 1982, DATE PUBLISHED: NOVEMBER 1982 )
Author(s):
NG, Y C [LAWRENCE LIVERMORE NATIONAL LABORATORY]; COLSHER, C S [LAWRENCE LIVERMORE NATIONAL LABORATORY]; THOMPSON, S E [LAWRENCE LIVERMORE NATIONAL LABORATORY]
Subject Terms:
RESEARCH PROGRAMS; SOILS; PLANTS; RADIOISOTOPES; DATA; STATISTICS; ISOTOPE RATIO
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:
1982 Nov 30
Declassification Status:
Never classified
Document Pages:
0142
Accession Number:
NV0067392
Document Number(s):
NUREGCR2975
Originating Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THIS REPORT PRESENTS THE RESULTS OF A LITERATURE REVIEW TO DERIVE SOIL -TO-PLANT CONCENTRATION FACTORS TO PREDICT THE CONCENTRATION OF A RAIO NUCLIDE IN PLANTS FROM THAT IN SOIL. THE CONCENTRATION FACTOR, B(V) I S DEFINED AS THE RATIO OF THE CONCENTRATION OF A NUCLIDE IN THE EDIBLE PLANT PART TO THAT IN DRY SOIL. CR ( THE CONCENTRATION RATIO ) IS SI MILARLY DEFINED TO DENOTE THE CONCENTRATION FACTOR FOR DRY FEED CONSUM ED BY LIVESTOCK. B(V) AND CR VALUES ARE USED TO ASSESS THE DOSE FROM RADIONUCLIDES DEPOSITED IN SOIL AND TRANSFERRED INTO CROP PLANTS VIA R OOTS. APPROACHES FOR DERIVING B(V) AND CR VALUES ARE DESCRIBED, AND V ALUES FOR FOOD AND FEED ARE TABULATED FOR INDIVIDUAL ELEMENTS. THE SO URCES OF UNCERTAINTY ARE DESCRIBED, AND THE FACTORS THAT CONTRIBUTE TO THE INHERENT VARIABILITY OF THE B(V) AND CR VALUES ARE DISCUSSED. SU MMARY TABLES OF ELEMENTAL B(V) AND CR VALUES AND STATISTICAL PARAMETER S THAT CHARACTERIZE THEIR DISTRIBUTIONS PROVIDE A BASIS FOR A SYSTEMAT IC UPDATING OF MANY OF THE B(V) VALUES IN REGULATORY GUIDE 1.109. THE Y ALSO PROVIDE A BASIS FOR SELECTING B(V) AND CR VALUES FOR OTHER APPL ICATIONS THAT INVOLVE THE USE OF EQUILIBRIUM MODELS TO PREDICT THE CON CENTRATION OF RADIONUCLIDES IN PLANTS FROM THAT IN SOIL.


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