Geological influence on the activity concentration of terrestrial radionuclides 226 Ra, 232 Th and 40 K in the Jos Plateau, Nigeria

Isotopes in Environmental and Health Studies
Habu Tela AbbaHassan Abdulsalam

Abstract

The Jos Plateau has been reported to have elevated levels of natural background radiation. A few earlier studies have measured the levels of natural radioactivity for specific locations in the area. Our interest is to investigate how geology of the study area influences the activity concentrations of natural radionuclides. Thus, the activity concentrations of terrestrial radionuclides in soil samples collected across the geological formations of the Jos Plateau were determined by gamma spectrometry technique. The mean activity concentrations of 226Ra, 232Th and 40K were found to exceed their corresponding world reference values of 35, 40 and 400 Bq kg-1, respectively. Data were compared using statistical methods, analysis of variance (ANOVA) and post hoc tests. The results revealed in some instances significant influences of geological types on the activity concentrations in the area. The spatial distribution maps of activity concentrations of 226Ra, 232Th and 40K were geostatistically interpolated by ordinary Kriging method using ArcGIS software.

References

Jun 1, 1994·Health Physics·R C Morris, L Fraley
Jun 14, 2005·Journal of Environmental Radioactivity·Nour Khalifa Ahmed, Abdel Gabar Mohamed El-Arabi
Mar 1, 2008·Journal of Radiological Protection : Official Journal of the Society for Radiological Protection·J A Ademola
Nov 28, 2013·Isotopes in Environmental and Health Studies·Muneer Aziz SalehAbubakar Sadiq Aliyu
Apr 8, 2015·Isotopes in Environmental and Health Studies·Abubakar Sadiq AliyuAhmad Termizi Ramli
Jun 22, 2015·Ambio·Abubakar Sadiq AliyuYakubu Aliyu Bununu
Mar 22, 2016·Isotopes in Environmental and Health Studies·Hamman Tukur GabdoMohamad Sanusi

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