Abstract
Concentrations of total mercury were determined in the fruiting bodies and underlying soil substrate to Parasol mushroom (Macrolepiota procera) collected from various sites in Poland in 1994-2000. Mean mercury concentrations of the caps varied between 1100±240 and 4900±3100 ng/g dry matter (total variation from 50 to 13000 ng/g), while of the stalks were between 530±120 and 2800±1300 ng/g (50-6200 ng/g). The BCFs of mercury varied, depending on the site between 20±1 and 220±140 (total range 17-720) for the caps and between 11±1 and 110±97 (total range 9-450) for the stalks. The mercury concentrations of the caps and stalks with exception of the one sampling site examined were independent of the soil substrate concentration what suggests a species-specific ability of M. procera to pick-up mercury.
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