Impak Radiologi Radionuklid Tabii dalam Air Minuman ke atas Orang Dewasa di Kawasan Tengah Semenanjung Malaysia

Translated title of the contribution: Radiological impact of drinks intakes of naturally occurring radionuclides on adults of central zone of Malaysia

A. A. Tawalbeh, Supian Samat, Muhamad Samudi Yasir, M. Omar

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Fifty three samples of different types of imported and locally produced drinks consumed in central zone of Malaysia were analyzed using gamma-ray spectrometry system. The measurement was conducted for 12 hours using a Canberra p-type high purity germanium (HPGe) gamma spectrometer with 30% relative efficiency resolution of 1.8 keV at 1.33 MeV. The detector was connected to a computer with MCA card (Accuspec B) and Genie-2000 Analysis software of Canberra Industries, USA. The geometric means of daily intakes of 238u, 232Th and 40K were 0.05, 0.08 and 27.23 respectively. Also the values give annual committed effective doses of 0.8, 6.5 and 61.53 μSv yr-1 for 238u, 232Th and 40K, respectively for population in central zone of Malaysia. The net radiological impact of these radionuclides is 68.83 μSv yr-1. This value gives cancer risk factor of 1.72 ×10-7. Also the value of net radiological impact gives loss of life expectancy of 0.43 days only. Whereas ICRP cancer risk factor for general public is 2.5 ×10-3 and total risk involve from the all natural radiation sources based on global average annual radiation dose of 2.4 mSv yr-1 is 6.0 ×10-3. The estimated cancer risk shows that probability of increase of cancer risk from daily Malaysian drinks is only a minor fraction of ICRP values. Therefore the drink samples investigated here does not pose any significant health hazard and is considered radiologically safe for human consumption.

Original languageUndefined/Unknown
Pages (from-to)187-193
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume16
Issue number2
Publication statusPublished - 2012

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Radioisotopes
Germanium
Health hazards
Gamma rays
Spectrometry
Dosimetry
Spectrometers
Detectors
Radiation
Industry

Keywords

  • Th and K
  • U
  • Cancer risk
  • Dietary intake
  • Drinks
  • Naturally occurring radionuclides (NORM)
  • Radiation dose

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Impak Radiologi Radionuklid Tabii dalam Air Minuman ke atas Orang Dewasa di Kawasan Tengah Semenanjung Malaysia. / Tawalbeh, A. A.; Samat, Supian; Yasir, Muhamad Samudi; Omar, M.

In: Malaysian Journal of Analytical Sciences, Vol. 16, No. 2, 2012, p. 187-193.

Research output: Contribution to journalArticle

Tawalbeh, A. A. ; Samat, Supian ; Yasir, Muhamad Samudi ; Omar, M. / Impak Radiologi Radionuklid Tabii dalam Air Minuman ke atas Orang Dewasa di Kawasan Tengah Semenanjung Malaysia. In: Malaysian Journal of Analytical Sciences. 2012 ; Vol. 16, No. 2. pp. 187-193.
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