The present work is devoted to an investigation on the soil to mushroom transfer parameters for Cs-137 and K-40 radionuclides, as well as for some stable elements and heavy metals. The results of transfer factors for Cs-137 and K-40 were within the range of 0.06-3.15 and 0.67-5.68, respectively and the most efficiently transferred radionuclide was K-40. The TF values for Cs-137 typically conformed to a lognormal distribution, while for K-40 showed normal distribution. Statistically significant correlations between Cs-137 soil to mushroom transfer factors and agrochemical soil properties have been revealed. Although the concentration ratios varied within the species, the most efficiently transferred elements seems to have been K, followed by Rb, Zn, Cu, Cd, S, Cs and Hg.