Concentration of {sup 226}Ra in human teeth
- Kanazawa Univ., Tatsunokuchi (Japan)
- National Institute of Health, Shinjuku (Japan)
- Fukui Prefectural Institute of Public Health (Japan)
{sup 226}Ra concentrations in human teeth from several cities, mainly Tokyo, Japan, were determined with emphasis on the measurement of low-level {sup 226}Ra by alpha-ray spectrometry following chemical separation. No appreciable differences in {sup 226}Ra concentration were found among various permanent teeth samples of different age groups in Tokyo. The mean {sup 226}Ra concentration for Tokyo was 0.51 {+-} 0.06 mBq (g CA){sup -1}. {sup 226}Ra concentration [mean: 0.67 {+-} 0.11 mBq (g Ca){sup -1}] in teeth in western regions of the country was statistically higher than that [mean: 0.48 {+-} 0.09 mBq (g Ca){sup -1}] in eastern ones. The mean {sup 226}Ra concentration [0.51 mBq (g CA){sup -1}] in teeth from Tokyo was less than the concentration [1.11 mBq (g CA){sup -1}] reported for vertebral bone samples of this city. 27 refs., 1 fig., 5 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 54534
- Journal Information:
- Health Physics, Vol. 67, Issue 5; Other Information: PBD: Nov 1994
- Country of Publication:
- United States
- Language:
- English
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