Assessment of natural radioactivity and 137Cs in some coastal areas of the Saudi Arabian gulf

H. Al-Ghamdi, A. Al-Muqrin, A. El-Sharkawy

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

Abstract

The levels of natural radioactivity have been investigated in some Saudi Arabian Gulf coastal areas. Sampling sites were chosen according to the presence of nearby non-nuclear industrial activities such as, the two main water desalination plants in Al Khobar and Al Jubail, and Maaden phosphate complex in Ras Al Khair, to ensure that effluents discharges into the Arabian Gulf didn't enhance radioactivity in seawater and shore sediments. Seawater samples were analyzed for radium isotopes (Ra-226 & Ra-228) and measured by gamma spectrometry using high purity germanium detector, after radiochemical separation of the isotopes by co-precipitation with MnO2. Shore sediment samples were analyzed for 226Ra, 228Ra (232Th), 4°K and 137Cs using gamma sepectrometry. A small variation was observed in the activity concentrations of the investigated radioisotopes, and the activity levels were comparable to those reported in literature. Quality assurance and methods validation were established through the efficiency calibration of the detectors, the estimation of uncertainties, the use of blanks, the analysis of standard reference materials and the intercomparison and proficiency tests. Radiological hazards were assessed, and the annual effective dose had an average value of 0.02 mSv. On the basis of the current results, we may conclude that any radiological hazards to the public visiting these shores are not expected.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalMarine Pollution Bulletin
Volume104
Issue number1-2
DOIs
Publication statusPublished - 15 Mar 2016

Fingerprint

Persian Gulf
Radioactivity
Seawater
Isotopes
Hazards
Sediments
hazard
seawater
Detectors
Radium
radium isotope
germanium
detectors
isotopes
Desalination
Coprecipitation
Quality assurance
Germanium
radioactivity
Radioisotopes

Keywords

  • Beach sand
  • Dose assessment
  • Gamma spectrometry
  • Natural radioactivity
  • Saudi Arabian Gulf
  • Seawater

Cite this

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title = "Assessment of natural radioactivity and 137Cs in some coastal areas of the Saudi Arabian gulf",
abstract = "The levels of natural radioactivity have been investigated in some Saudi Arabian Gulf coastal areas. Sampling sites were chosen according to the presence of nearby non-nuclear industrial activities such as, the two main water desalination plants in Al Khobar and Al Jubail, and Maaden phosphate complex in Ras Al Khair, to ensure that effluents discharges into the Arabian Gulf didn't enhance radioactivity in seawater and shore sediments. Seawater samples were analyzed for radium isotopes (Ra-226 & Ra-228) and measured by gamma spectrometry using high purity germanium detector, after radiochemical separation of the isotopes by co-precipitation with MnO2. Shore sediment samples were analyzed for 226Ra, 228Ra (232Th), 4°K and 137Cs using gamma sepectrometry. A small variation was observed in the activity concentrations of the investigated radioisotopes, and the activity levels were comparable to those reported in literature. Quality assurance and methods validation were established through the efficiency calibration of the detectors, the estimation of uncertainties, the use of blanks, the analysis of standard reference materials and the intercomparison and proficiency tests. Radiological hazards were assessed, and the annual effective dose had an average value of 0.02 mSv. On the basis of the current results, we may conclude that any radiological hazards to the public visiting these shores are not expected.",
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Assessment of natural radioactivity and 137Cs in some coastal areas of the Saudi Arabian gulf. / Al-Ghamdi, H.; Al-Muqrin, A.; El-Sharkawy, A.

In: Marine Pollution Bulletin, Vol. 104, No. 1-2, 15.03.2016, p. 29-33.

Research output: Contribution to journalArticleResearchpeer-review

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