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Distribution and enrichment of radionuclides in the newly discovered high background radiation area in Ullal on the south west coast of India

Abstract

Soil and sand samples collected from high background radiation area in Ullal near Mangalore from different depths were analysed for the concentration of primordial radionuclides by gamma spectrometry. The highest activity of {sup 232}Th and {sup 238}U in soil and sand was observed in the 0-10 cm layer. The activity of primordial radionuclides was determined for the different size fractions of soil and sand to study the enrichment pattern. The highest activity was found in the 250-125{mu} fraction in both soil and sand. The concentration of primordial radionuclides in river and marine sediments in the vicinity of the high background area were measured to understand the transportation of radionuclides in riverine and marine environments and to throw light on the formation of new patches of monazite deposits. The results of these systematic investigations are presented and discussed. (author). 17 refs., 4 tabs.
Authors:
Narayana, Y; Somashekharappa, H M; Radhakrishna, A P; Siddappa, K [1] 
  1. Mangalore University, Mangalagangotri (India). Department of Studies in Physics
Publication Date:
Dec 31, 1994
Product Type:
Conference
Report Number:
CONF-9403234-
Reference Number:
SCA: 540230; PA: AIX-26:059344; EDB-95:131841; SN: 95001462165
Resource Relation:
Conference: 3. national symposium on environment with special emphasis on high background radiation areas, Thiruvananthapuram (India), 1-4 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of Proceedings of the third national symposium on environment with special emphasis on high background radiation areas; Nair, N.B.; Eapen, C.D.; Bapat, V.N.; Sadasivan, S. [eds.] [Bhabha Atomic Research Centre, Bombay (India). Environmental Assessment Div.]; Gangadharan, P. [ed.] [Natural Background Radiation Registry, Kollam (India)]; PB: 293 p.
Subject:
54 ENVIRONMENTAL SCIENCES; NATURAL RADIOACTIVITY; SAND; SOILS; THORIUM 232; RADIONUCLIDE MIGRATION; URANIUM 238; BACKGROUND RADIATION; DOSE RATES; GAMMA SPECTROSCOPY; INDIA; MONAZITES; POTASSIUM 40; SEDIMENTS
OSTI ID:
101364
Research Organizations:
Department of Atomic Energy, Bombay (India). Board of Research in Nuclear Sciences
Country of Origin:
India
Language:
English
Other Identifying Numbers:
TRN: IN9500956059344
Submitting Site:
INIS
Size:
pp. 30-34
Announcement Date:
Jan 16, 2004

Citation Formats

Narayana, Y, Somashekharappa, H M, Radhakrishna, A P, and Siddappa, K. Distribution and enrichment of radionuclides in the newly discovered high background radiation area in Ullal on the south west coast of India. India: N. p., 1994. Web.
Narayana, Y, Somashekharappa, H M, Radhakrishna, A P, & Siddappa, K. Distribution and enrichment of radionuclides in the newly discovered high background radiation area in Ullal on the south west coast of India. India.
Narayana, Y, Somashekharappa, H M, Radhakrishna, A P, and Siddappa, K. 1994. "Distribution and enrichment of radionuclides in the newly discovered high background radiation area in Ullal on the south west coast of India." India.
@misc{etde_101364,
title = {Distribution and enrichment of radionuclides in the newly discovered high background radiation area in Ullal on the south west coast of India}
author = {Narayana, Y, Somashekharappa, H M, Radhakrishna, A P, and Siddappa, K}
abstractNote = {Soil and sand samples collected from high background radiation area in Ullal near Mangalore from different depths were analysed for the concentration of primordial radionuclides by gamma spectrometry. The highest activity of {sup 232}Th and {sup 238}U in soil and sand was observed in the 0-10 cm layer. The activity of primordial radionuclides was determined for the different size fractions of soil and sand to study the enrichment pattern. The highest activity was found in the 250-125{mu} fraction in both soil and sand. The concentration of primordial radionuclides in river and marine sediments in the vicinity of the high background area were measured to understand the transportation of radionuclides in riverine and marine environments and to throw light on the formation of new patches of monazite deposits. The results of these systematic investigations are presented and discussed. (author). 17 refs., 4 tabs.}
place = {India}
year = {1994}
month = {Dec}
}