International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Full Length Research Paper

Primordial radionuclides in potable water from former tin-mining areas with elevated activity

O. I. Adekoya
  • O. I. Adekoya
  • Physics Department, University of Ibadan, Oyo, Nigeria.
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  •  Received: 03 November 2014
  •  Accepted: 25 November 2014
  •  Published: 16 December 2014

Abstract

The activity concentrations of the primordial radionuclides in potable water from 2 former mining areas (Bisichi and Bukuru) in Jos, Plateau state in Nigeria have been studied. The activities were determined by a non-destructive analysis using a computerized gamma ray spectrometry system with high purity germanium (HPGe). The results show the average activity concentrations for 226Ra, 232Th and 40K for Bukuru and Bisichi to be respectively 1.20 ±0.02, 1.93 ± 0.01, 4.75 ± 0.14 and 2.03 ± 0.14, 2.20 ± 0.13 and 3.26 ± 0.06 Bq/l. The corresponding annual effective doses for both locations are respectively 0.59 and 0.80 mSv/year which are much higher than the reference level of a dose of 0.1mSv/year from the intake of drinking water.
 
Key words: Activity concentration, radionuclides, drinking water.