Accumulation of strontium and cesium by kale as a function of age of plant
Journal Article
·
· J. Environ. Qual.; (United States)
The accumulation of Sr and Cs throughout the growth cycle of a hydroponically grown vegetable crop (Brassica oleracea var. acephala D.C. Blue Curl) was studied. The cumulative effect of supplying the radionuclides through the nutrient solution to kale throughout the growth cycle, simulating a continuous discharge, was compared to exposure at each stage of the growth cycle to a single dose of radioactivity, simulating an accidental release. The time course of accumulation of /sup 137/Cs supplied continuously through the nutrient solution resembled the sigmoidal dry weight growth curve of the vegetable. Accumulation of this nuclide after exposure of kale to radioactivity for 48 hours at each stage of growth decreased with age of the plant. The time course of /sup 90/Sr supplied continuously resembled the pattern of the periodic 48-hour accumulation for this radionuclide, although there was a 1- to 2-week lag period between the two uptake patterns.
- Research Organization:
- Florida State Univ., Tallahassee
- OSTI ID:
- 6499457
- Journal Information:
- J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 10:1; ISSN JEVQA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
510302* -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- Terrestrial Ecosystems & Food Chains-- (-1987)
54 ENVIRONMENTAL SCIENCES
AGE DEPENDENCE
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL ACCUMULATION
CESIUM
CESIUM 137
CESIUM ISOTOPES
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
FOOD
GROWTH
HYDROPONIC CULTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
KALE
MASS TRANSFER
METALS
NUCLEI
NUTRIENTS
ODD-EVEN NUCLEI
PLANT GROWTH
RADIOISOTOPES
RADIONUCLIDE MIGRATION
STRONTIUM
STRONTIUM 90
STRONTIUM ISOTOPES
UPTAKE
VEGETABLES
YEARS LIVING RADIOISOTOPES
Terrestrial-- Radioactive Materials Monitoring & Transport-- Terrestrial Ecosystems & Food Chains-- (-1987)
54 ENVIRONMENTAL SCIENCES
AGE DEPENDENCE
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL ACCUMULATION
CESIUM
CESIUM 137
CESIUM ISOTOPES
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
FOOD
GROWTH
HYDROPONIC CULTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
KALE
MASS TRANSFER
METALS
NUCLEI
NUTRIENTS
ODD-EVEN NUCLEI
PLANT GROWTH
RADIOISOTOPES
RADIONUCLIDE MIGRATION
STRONTIUM
STRONTIUM 90
STRONTIUM ISOTOPES
UPTAKE
VEGETABLES
YEARS LIVING RADIOISOTOPES