“…Surface vegetation and fungi, within the humified layer of soil are part of the forest ecosystem that is susceptible to pollution with caesium ( 134 / 137 Cs -half-life 2.1/30 yrs respectively) particularly from radioactive fallout after nuclear events (Römmelt et al, 1990;Suchara, 2017). Mushrooms, the fruiting bodies of fungi, exhibit a remarkable aptitude and propensity to bioconcentrate a variety of metallic elements and metalloids, both of a beneficial (Cu, K, Se, Zn) or harmful nature (As, Ag, Cd, Hg, Pb, radiocaesium) (Cocchi et al, 2017;Frankowska et al, 2010;Giannaccini et al, 2012;Ingrao et al, 1992;Jarzyńska et al, 2012aJarzyńska et al, , 2012bKomorowicz et al, 2019;Melgar et al, 1998;Vukojević et al, 2019).…”