Radioactivity and radiological hazards from a kaolin mining field in Ifonyintedo, Nigeria.

The concentrations of the radionuclides in the subsurface formation (soils and rocks) solely depend on their geological origin, which enables its variation from point to point on the Crust. Construction materials can possess elevated concentrations of radioactivity if their byproducts are mined from contaminated radionuclide sources. In this article, results of in situ measurements of radioactivity concentrations of K, Th, and U as well as gamma doses and radiological hazards from kaolin mining field were presented and evaluated.