peculiarities of heavy metals accumulation by the fruit bodies of macromycetes in the conditions of combined radiation and chemical contamination

In conditions of combined radiation and chemical contamination of forest habitats (Bryansk oblast) revealed cumulative activity of basidiomycetes in relation to heavy metals, the calculated accumulation factors. Used route, the research methods of the soils, determine the gross concentration of the elements x-ray fluorescence method. The intensity of accumulation of heavy metals in fruit bodies of mushrooms were evaluated using the coefficients of accumulation (or bioaccumulation factors). Analysis of concentrations of gross pollutants showed that the maximum Pb observed in the fruit bodies of Pers.) Fr., Boletus edulis Rostk. and Calocybe gambosa (Fr.) Singer, the concentration of As Calocybe gambosa, Boletus edulis, Russula adusta and Xerocomus subtomentosus (L.) Quél. The maximum Zn content observed in the fruit bodies of the Russula alutacea (Fr.) Fr., Xerocomus subtomentosus, Tricholoma equestre (L.) P. Kumm., Russula adusta and Boletus edulis, Cu and Ni – Xerocomus subtomentosus, Leccinum scabrum, Boletus erythropus, Boletus edulis, Calocybe gambosa and Xerocomus subtomentosus, Fe and Mne – Boletus erythropus, Xerocomus subtomentosus and Leccinum scabrum. The total heavy metal content maximum in the fruit bodies of Xerocomus subtomentosus, Boletus erythropus и Leccinum scabrum. On the basis of rates of accumulation of fungi are divided into three groups according to intensity of accumulation of metals: the first group consists of mushrooms, the most intensively accumulate heavy metals – Russula mairei, Leccinum scabrum and Boletus erythropus; the second fungi which are characterized by the average intensity of the accumulation of TM – Xerocomus subtomentosus, Boletus edulis and Russula alutacea; the third group includes mushrooms, which are characterized by a low degree of accumulation of individual elements of the TM – Boletus erythropus, Russula adusta and Calocybe gambosa. Mushrooms – storage Co, Cu, Zn and Sr – is Xerocomus subtomentosus, which is recommended as a bioindicator of environmental pollution with these metals. The results obtained are the basis of the potential for biomarker and eco-analytical research of migration of heavy metals with the participation of the components of forest ecosystems.