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This study aims to investigate the radioactivity of adobe in Angola, where it is a widely used building material. Sixty samples have been collected from three remote areas of the… Click to show full abstract
This study aims to investigate the radioactivity of adobe in Angola, where it is a widely used building material. Sixty samples have been collected from three remote areas of the country with different geological backgrounds (Cabinda, Huambo, Menongue). Activity concentrations of 226 Ra, 232 Th and 40 K have been determined by gamma-ray spectroscopy and radiation hazard indices were also calculated. The area Huambo shows elevated 226 Ra and 232 Th values which can be explained by its older geological formations. 40 K concentrations are low in general. Regarding external radiation risk, adobe from Angola is safe to use as building material.
Journal Title: Journal of Radioanalytical and Nuclear Chemistry
Year Published: 2019
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