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(70-42) Heavy metal levels in higher fungi, collected near the largest Slovene thermal power plant. Al Sayegh Petkov ABSTRACT- Levels of Cd, Pb, Hg and As were determined by ICP-MS in 190 samples of higher fungi belonging to 52 species, collected near the largest Slovene thermal power plant of Sostanj in 2000. Our findings were as follows: (1) Heavy metal levels (HML) are significantly higher in caps in comparison with stems. (2) Fungi have tremendous bio-accumulative potential, therefore HML in fruiting bodies are for one (Pb) to four (As) orders of magnitude higher in comparison with other forest fruits from the same locations. (3) The highest HML were determined in the following species: Cd: Agaricus arvensis and A. silvicola; As: A. silvicola, Coprinus atramentarius, Boletinus cavipes and Lepista nuda; Hg: A. campester and L. nuda; Pb: Macrolepiota mastoidea, Lycoperdon perlatum and Calvatia utriformis. (4) Mushrooms should be eaten with a high sobriety due to very high contents of As, Hg and particularly Cd (e.g. the weekly intake rate for an adult in the Salek Valley should not exceed 50 g of Agaricus species, or 500 g of Armillariella mellea, M. procera or Boletus edulis). (5) A monitoring program of the most problematic elements in mushroom fruiting bodies, which is essential for performing reliable risk assessment for higher links of food web, has to be established all over the country. Key words: heavy metal, fungi, pollution, power plant |
ek, Samar*,1, Pokorny, Bo