Geochemistry of Natural Radionuclides Associated with Acid Mine Drainage ( AMD ) in a Coal Mining Area in Southern Brazil

Abstract

Coal is an important non-renewable energy source of and can be associated with radioactive elements. In Figueira city, Paraná state, Brazil, it was recorded high uranium activity near the coal mine that supplies a local thermoelectric power plant. In this context, the radon activity (Rn-222, produced by the Ra-226 decay in the U-238 natural series) was… (More)

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