ON THE RADIOACTIVITY OF PLANTS FROM THE HIGH RADIATION AREAS OF THE KERALA COAST AND ADJOINING REGIONS. I. STUDIES ON THE UPTAKE OF GAMMA-EMITTING RADIONUCLIDES

Technical Report · Mon Jan 01 04:00:00 EST 1962

OSTI ID:4800486

Gopal-Ayengar, A R; Mistry, K B

For presentation at Symposium on the Use of Radioisotopes in Soil-Plant Nutrition Studies, February 26- March 2, 1962, Bombay. Deposits of radioactive minerals occur in formations along the Kerala coast in southern India. The radioactive component of these deposits is monazite which contains principally Th, together with several rare-earth minerals, rutile, sillimanite, zircon, and titanium-bearing ilmenite. The Th content of the monazite ranges from 8.0 to 10.5% in some areas. Results are reported from studies on the uptake of radioelements of the Th series by 14 species of plants native to the region. Data on concentrations of Th/sup 228/ Ra/sup 224/, Ac/sup 228/, Bi/sup 212/, and Ti/sup 208/ in samples of plant materials, and the complete gamma spectra for 24 samples, are tabulated. Ra/sup 224/ content was higher than that of the other nuclides in all plant species. Data suggest the possibility of accumulation mechanisms for some of the plant species. (C.H.)

• Research Organization: India. Atomic Energy Establishment, Trombay
• NSA Number: NSA-16-011934
• OSTI ID: 4800486
• Report Number(s): NP-11580; SM-23/12
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACTINIUM 228
ALUMINUM SILICATES
BISMUTH 212
GAMMA RADIATION
GAMMA SOURCES
GEOLOGY, MINERALOGY, AND METEOROLOGY
ILMENITE
INDIA
IRON COMPOUNDS
IRON OXIDES
MINERALS
MONAZITES
PLANTS
QUANTITY RATIO
RADIOACTIVITY
RADIOISOTOPES
RADIUM 224
RARE EARTHS
RUTILE
SILLIMANITE
SPECTRA
THALLIUM 208
THORIUM
THORIUM 228
TITANATES
TITANIUM OXIDES
ZIRCON
ZIRCONIUM SILICATES