[en] The activity levels of some natural radionuclides and ¹³⁷Cs in the surface soil layer (0-5 cm) within and outside three recultivated coal fly ash disposal sites have been determined by (γ-ray spectrometry with an REGe detector. The activity of natural radionuclides from the ²³⁸U and ²³²Th series in the soil samples ranged from 7.5 to 77 Bq/kg. No significant differences in the activity of concentrations within and outside of two of the disposal sites have been found. However, in the vicinity of one site an abnormally high depositional flux of ²¹⁰Pb was observed. This can be explained as a result of the high ²²²Rn emanation from deposited fly ash covered with an insufficient layer of soil. The observed correlation between an excess of ²¹⁰Pb and the concentration of anthropogenic radionuclide ¹³⁷Cs in surface soil confirms the fact, that local geographic conditions can substantially influence the radionuclide depositional flux from the atmosphere to the soil