Peculiarities of 137Cs accumulation by macromycetes in dry bors of Ukrainian Pollessye

The main ecological peculiarities of dry bor in Ukrainian Polessye were given. Research were carried out in Central Polessye of Ukraine during 1997 - 1999. Results were obtained by spectrometric measurement of specific activity of 137Cs in fruitbodies of mushrooms and in the soil. Species composition of macromycetes was divided on homogeneous groups on intensity of 137Cs accumulation. Amanita porphyria, A. muscaria and Tricholoma portentosum belong to the group of weak 137Cs accumulation from the soil (TF = 15 - 20); Amanita pantherina, A. phalloides, Cantharellus cibarius, Boletus edulis, Tricholoma flavovirens and Laccaria laccata - to the group of moderate radionuclide accumulation (TF = 30 - 55). The group of strong 137Cs accumulation (TF = 100 - 180) consists of Suillus variegatus, S. bovinus and Hydnum imbricatum; and group of very strong accumulation (TF = 200 - 280) - of Xerocomus badius, Lactarius rufus, Russula xerampelina, Cortinarius varius and Paxillus involutus. Cortinarius sanguineus (with TF = 400) is an accumulator of 137Cs. Comparative evaluation of dry bor was given from the point of view of purchase of edible macromycetes in it.