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- Title
Radiation hazard assessment in Egyptian painting oxides. A comparative study.
- Authors
Abel-Ghany, H.
- Abstract
Building materials are potential sources of radiation, which represents a risk factor for human disease including cancer. In this work, the natural radioactivity due to the presence of U, Ra, Th and K in different painting oxides has been measured using gamma spectrometry with a Hyper Pure germanium detector. The concentrations of the heavy metals (Cd, Co, Mn, Pb, Ni, Sr, Rb, Cr, Cu and Zn) were determined by atomic absorption spectrometry in order to investigate their possible correlation with radioactive elements. The activity concentrations of U, Ra, Th and K ranged from 15 ± 0.75 to 126 ± 14, 2.35 ± 0.09 to 72.96 ± 1.96, 1.76 ± 0.31 to 12.88 ± 0.7 and 2.26 ± 0.09 to 200 ± 3.34 Bq kg, respectively. The calculated radium-equivalents were lower than values recommended for construction materials (370 Bq kg). The absorbed dose rates due to the natural radioactivity of the investigated samples ranged from 8.11 ± 0.24 to 68.46 ± 4.20 nGy/h. Also, the results revealed that some heavy metals (Cd, Co, Mn and Rb) were correlated with U, Ra, Th or K.
- Subjects
PHYSIOLOGICAL effects of radiation; EGYPTIAN painting; OXIDES; CONSTRUCTION materials; DISEASE risk factors; SPECTROMETRY; HEAVY metals; ATOMIC absorption spectroscopy; RADIOACTIVITY
- Publication
Environmental Geochemistry & Health, 2011, Vol 33, Issue 3, p225
- ISSN
0269-4042
- Publication type
Article
- DOI
10.1007/s10653-010-9336-4