The study of the metal contents of some dominant plants and phyllospheric micro-organisms on Upper-Tisza area.

Abstract

As an effect of last years' the industrial contaminations, were reached the critical ecological level on the flood-basin of Upper Tisza some times. The large content of pollutants (heavy metals, cianids, other industrial pollutants), the dispersion and accumulation infected the plants and animals in rivers and them flood-basin. The aim of study in 2007-2009 were investigated the relationship of soil-plant-metal content in dominant plants and soils on the Tisza river and flood-basin. The sampling sites were Tiszabecs, Vásárosnamény, Dombrád, Tokaj. We measured the range mg/kg: Chrome (Cr) 20,63-24,63; Cadmium (Cd) 0,40-1,15; Cuprum (Cu) 28,36-66,6; Zink (Zn) 89,66-180,33 in soils of flood basin. The soils content of Cd exceeded the limit value according to 10/2000. VI.2. KöM-EüM-FVM-KHVM regulation. The dominant plants were Rubus caesius, Humulus lupulu, Atremisia vulgaris, Ranunculus repens, Taraxacum officinale, Galium aparine and Solidago canadensis.We investigated the Cr, Cd, Ni, Cu- and Zn-contents these plants. The metal-contents (mg/kg) of roots were: Cr 90-474, Cd 1,6-8,1, Ni 23,3-32,5, Cu 22,7-31,5 Zn 106-186. The leaves range were Cr 7-390, Cd 1,2-1,6, Ni 0,7-44,1, Cu 0,6-42,8 Zn 24,9-203,5. The metal- contents of steam were: Cr 4,2-5.5, Cd 1,2-4,6, Ni 0,4-1,9, Cu 4,4-13,9, Zn 27,1-69,1. The highest metal-content were of all investigated metals in roots and leaves of Rubus caesius and Solidago canadensis. Our study showed, that the high level of metals as soil contaminations and the high plants metal contents harmful in river compartment.