Isotopes of Po-210 and Pb-210 in Hazel bolete (Leccinellum pseudoscabrum) - bioconcentration, distribution and related dose assessment

摘要

The hazel bolete Leccinellum pseudoscabrum (Kallenb.) Mikik 2017 specimens and beneath soil layer (0-10cm) have been examined on the occasion of Po-210 and Pb-210 activity concentrations, the nuclide bioaccumulation potential by species and distribution in fruit bodies. Mushrooms and forest soils came from six geographically distant locations in the northern and central parts of Poland. The threat to humans from Po-210 and Pb-210 contained in mushrooms has been also assessed. The absolute values of the Po-210 radioactivity, respectively, in caps and stems of fruit bodies were in the range 0.74 +/- 0.06-8.59 +/- 0.36Bqkg(-1) dry biomass and from 0.81 +/- 0.06-8.23 +/- 0.37Bqkg(-1) dry biomass, while the values of the Pb-210 radioactivity in caps and stems were in the range 0.61 +/- 0.04-6.33 +/- 0.22Bqkg(-1) dry biomass and 0.83 +/- 0.04-4.59 +/- 0.24Bqkg(-1) dry biomass, respectively. A potential related effective dose assessment showed that mushrooms L. pseudoscabrum can contribute at 0.89-10.3Svkg(-1) db from Po-210 decay and 0.42-4.37Svkg(-1) db from Pb-210 decay.