The content of heavy metals in soil and cropped production from heavy metals polluted area | Obsah ťažkých kovov v pôde a dopestovanej produkcii z metalicky zaťaženej oblasti
2009
Tomáš, J., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Árvay, J., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Tóth, T., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Szabóová, G., Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Harangozo, Ľ., Slovak Univ. of Agriculture in Nitra (Slovak Republic)
The aim of this work is to show the importance of monitoring and of soil hygienic quality evaluation in Slovak Republic area. In the past, when on ecology was not such an emphasis, as it is nowadays, there was an uncontrolled emission of pollutants from different fields of anthropic activities. The consequences are manifested also nowadays, but immediate and expensive solutions are needed. In this work are presented the results of soil contamination research range of monitored locality Štiavnica Hills by heavy metals and their availability for plants in dependance at soil reaction. The chose of this locality relates with specifity of mentioned area, which is characteristic by anthropic, but also natural (geochemical) contamination. In all soil samples the analyses of changeable reaction were realized. Also the analyses on the heavy metals content in the leach of aqua regia (pseudototal leach) and 1 mol per cubic dm ammonium nitrate (available content). In gained production the heavy metals content after mineralization by dry way method. The results were prepared into content maps with software ArcView 3.2. As the result colourful maps showing content variability of elements on monitored area are presented. Analyses of plant material – corn seed (Zea mays, L.) show on whole locality enhanced limit values of Cd content in maize corn. The content of other monitored metals were not enhancing the hygienic limits, defined by Foodstuffs Codex SR. But there is positive correlation between the heavy metals content in extract of 1mol per cubic dm NH4NO3 and the content in final production on monitored parcel.
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