222Rn emanation from uranium-glazed ceramics.
Orange-red uranium-glazed dinnerware was found to emanate 222Rn to produce an average of less than 0.1 Bq 222Rn decay per piece, which should have no associated health risks. Comparison of 222Rn emanation to 226Ra in glazes (measured by alpha spectrometry) indicated inefficient emanation (<5%) of 222Rn, consistent with the low radon levels observed and with the presence of 222Rn progeny in glazes. These studies also showed that reagent grade uranium compounds may emanate measurable 222Rn.
Biagioni
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Department of Chemistry, Southwest Missouri State University, Springfield 65804, USA.
Sheets
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D002516:Ceramics; D003297:Cooking and Eating Utensils; D011886:Radon / Q000032:analysis*; D017687:Radon Daughters / Q000032:analysis; D014481:United States; D014501:Uranium; D014502:Uranyl Nitrate
D017687:Radon Daughters; D014502:Uranyl Nitrate; D014501:Uranium; D011886:Radon