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Radon and thoron emanation from uranium-glazed tableware

M E Kitto1, C A McNulty, C O Kunz

  • 1Wadsworth Center, New York State Department of Health, Albany 12201, USA.

Health Physics
|May 1, 1996
PubMed
Summary
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Radon and thoron gas emanation from uranium-rich ceramic glazes was studied. Despite high uranium levels detected by gamma spectroscopy, no radioactive gases were observed, contradicting prior findings.

Area of Science:

  • Environmental Science
  • Radiological Health

Background:

  • Ceramic glazes can contain uranium, posing potential radiological risks.
  • Previous studies suggested radioactive gas emanation from such materials.

Purpose of the Study:

  • To quantify radon and thoron gas emanation from ceramic tableware with elevated uranium levels.
  • To verify or refute previous reports on radioactive gas release from glazed ceramics.

Main Methods:

  • Utilized alpha-scintillation cells for sensitive detection of radioactive gases.
  • Employed gamma spectroscopy to determine uranium concentrations in ceramic glazes.

Main Results:

  • Significant uranium concentrations were confirmed in the ceramic glazes via gamma spectroscopy.

Related Experiment Videos

  • No detectable emanation of radon or thoron gases was observed from the tableware.
  • Findings contradict previous reports suggesting radioactive gas release.

    • Conclusions:

    • Ceramic tableware with elevated uranium levels in glazes may not pose a significant radon/thoron emanation risk.
    • Further investigation is needed to understand the discrepancy with previous studies.
    • This study highlights the importance of direct measurement over assumptions regarding radioactive gas release.