摘要
In the current study, we determined concentrations and transfer rates of Ag, Al, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, P, Rb, Sr and Zn to Brown Birch Scaber Stalks （Leccinum scabrum） mushrooms emerged in the area of Sudety Mountains （Sudetes） in Poland. Fruiting bodies and topsoil samples beneath L. scabrum were collected form the Ktodzka Dale. The trace elements were determined using validated method and inductively coupled plasma - atomic emission spectroscopy （ICP-AES） for final measurement. Mushrooms contained Ag, Cr, Hg, Co, Ni and Sr at 〈 1.0μg/g dry weight; Ba and Pb at -1.0μg/g dw; Cd at 〈 5μPg/g dw; Cu and Mn at 〉 10 μg/g dw; Al and Ca at -100μg/g dw; Fe, Na, Rb and Zn at lOO to 500μg/g dw, Mg at -1.000μg/g dw; P at -5,000 μg/g dw and K at -30,000 μg/g dw. Ca, Mn and Ni were nearly equally distributed between stipes and caps; stipes compared to caps were enriched in Ba, Na and Sr, while caps were enriched in Ag, Al, Cd, Co, Cr, Cu, Fe, K, P, Pb, Rb and Zn. The values of bioconcentration factor （BCF） varied highly depending on chemical element and were 〉1 for Ag, Cd, Cu, K, Mg, Na, P, Rb and Zn, while 〈1 for A1, Ba, Ca, Co, Cr, Fe, Mn, Ni, Pb and Sr. Topsoil showed elevated content of lead and mean concentration was 99 ± 32 μg/g dw, while cadmium was at 0.41 ± 0.15 and those two highly toxic to human elements occurred in edible caps of L. scabrum at 4.5 ± 2.2 and 2.9 ± 2.0 μg/g dw, respectively.
基金
supported in part by the National Science Centre(NCN) of Poland under Grant PRELUDIUM project NoUMO-2011/03/N/NZ9/04136
the Chinese Academy of Science(Project No 2010T1Z26)
