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Abstract
This study evaluates the effects of seasonal conditions and exposure periods on trace element concentrations in samples of the epiphytic moss Pylaisia polyantha when transplanted into urban areas. This assessment was carried out in summer and winter at four sites differing in their level of technogenic trace element load. The contents of 25 trace elements (As, Ba, Br, Ca, Ce, Co, Cr, Cs, Eu, Fe, Hf, La, Lu, Mo, Nd, Rb, Sb, Sc, Sm, Sr, Tb, Th, U, Yb, and Zn) were determined using neutron-activation analysis, and it was shown that seasonal conditions do not affect vital activity in P. polyantha graft moss. For most elements, the greatest increase in trace element concentration in P. polyantha transplant moss was observed within one month. The high sensitivity of this epiphytic moss-transplant to the level of technogenic load has thus been demonstrated, and it may find utility in future research with similar objectives.
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