Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2753

Full Length Research Paper

Natural radioactivity in drinking and mineral water in Johor Bahru (Malaysia)

N. M. Yussuf, I. Hossain* and H. Wagiran
Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor bahru, Johor, Malaysia.
Email: [email protected]

  •  Accepted: 28 February 2012
  •  Published: 31 March 2012

Abstract

The radiological quality of 238U, 232Th and 40K in some samples of drinking and mineral water collected in Johor Bahru, Malaysia has been measured by direct  ray spectroscopy using high purity germanium detector in this paper. Mean activity concentration of 238U, 232Th and 40K in drinking and mineral water were found 1.48 ± 0.12, 9.59 ± 0.83, 39.67 ± 1.69 ppm and 2.16 ± 0.15, 15.88 ± 1.16, 41.47 ± 1.76 ppm respectively. The mean estimated dose of 238U, 232Th and 40K to an adult from the drinking and mineral water intake was 0.0015 ± 0.0001, 0.0122 ± 0.0011, 5.53 ± 0.23 nSv year-1 and 0.0021 ± 0.0001, 0.0203 ± 0.0015 , 5.80 ± 0.23 nSv year-1 respectively.

 

Key words: Drinking water, mineral, Johor Bahru (Malaysia), potassium, thorium, uranium.