Derivation of plant-soil relationships for dose assessment on Bikini Atoll. [Radiation dose to returning population]
A radiological survey of the terrestrial environment of Bikini and Eneu Islands (Bikini Atoll) was conducted in June 1975 to evaluate the potential radiation dose to the returning Bikini population. This report presents measurements of the radionuclide concentration in soil profiles and in dominant species of edible and nonedible indicator plants and describes the use of these data to derive relationships to predict the plant uptake of radionuclides from soil. Soil-plant concentration factors together with leaf-leaf and fruit-leaf concentration ratios for indicator and edible plant species from the same area are calculated to quantitatively assess and compare the uptake of /sup 90/Sr, /sup 137/Cs, and /sup 239/'/sup 240/Pu. In general, the concentration factors for /sup 137/Cs in terrestrial vegetation are greater than those for /sup 90/Sr and the concentration factors for both these nuclides exceed those for /sup 239/'/sup 240/Pu by ten to one hundred-fold. Uptake of /sup 90/Sr and /sup 239/'/sup 240/Pu by fruit is less than that by mature leaves; however, the opposite is true for /sup 137/Cs. The relative contribution of the individual plant species to the internal dose to man varies with the nuclide. The use of concentration factors and concentration ratios to predict nuclide concentrations in fruit from those in soil or leaves is prescribed.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7317025
- Report Number(s):
- UCID-17313
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560161* -- Radionuclide Effects
Kinetics
& Toxicology-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIKINI
BIOMASS
CESIUM 137
CESIUM ISOTOPES
DOSE COMMITMENTS
DOSES
ECOSYSTEMS
ENERGY SOURCES
ENVIRONMENT
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FOOD
FOOD CHAINS
FRUITS
HEAVY NUCLEI
HUMAN POPULATIONS
INTERMEDIATE MASS NUCLEI
INTERNAL IRRADIATION
IRRADIATION
ISLANDS
ISOTOPES
MARSHALL ISLANDS
MASS TRANSFER
NUCLEI
ODD-EVEN NUCLEI
PLANTS
PLUTONIUM 239
PLUTONIUM 240
PLUTONIUM ISOTOPES
POPULATIONS
RADIATION DOSES
RADIOACTIVITY
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADIONUCLIDE MIGRATION
RENEWABLE ENERGY SOURCES
SOILS
STRONTIUM 90
STRONTIUM ISOTOPES
TERRESTRIAL ECOSYSTEMS
VEGETABLES
YEARS LIVING RADIOISOTOPES