Rn and Ra activity concentrations in groundwaters of southern Poland: new data and selected genetic relations.

Since 2008, the authors have been conducting research into Rn and Ra activity concentrations in shallow circulation groundwaters in southern Poland. Measurements have been performed with a liquid-scintillation method and ultra low-level liquid-scintillation spectrometers α/β Quantulus 1220. The research carried out so far has demonstrated that in the Sudetes groundwaters with high activity concentrations of Rn and Ra are common.