Heavy metals and their bioavailability from soils in the long-term polluted Central Spis region of SR
2009
Takac, P.,Technicka Univ., Kosice (Slovak Republic). Ustav Montannych Vied a Ochrany Zivotneho Prostredia | Szabova, T.,Technicka Univ., Kosice (Slovak Republic). Ustav Montannych Vied a Ochrany Zivotneho Prostredia | Kozakova, L.,Technicka Univ., Kosice (Slovak Republic). Ustav Montannych Vied a Ochrany Zivotneho Prostredia | Benkova, M.,Technicka Univ., Kosice (Slovak Republic). Ustav Montannych Vied a Ochrany Zivotneho Prostredia
The aim of this study was to monitor concentrations of Cu, Pb and Zn in soils of the Central Spis region (Slovakia), a long-term contaminated area. Soil contamination is caused especially by ore mining, processing and treatment. Soil samples contained higher proportions of mobile forms which corresponded to the following sequence: Pb more than Zn more than Cu, while for mobilizable forms the sequence was as follows: Cu more than Zn more than Pb. Higher proportions of mobile fractions were detected in samples taken from soils with acidic pH. Statistical processing confirmed a relationship between the percentage share of Pb and Zn in the mobile form and the level of pH/KCl, which was significant for Zn: r = -0.53. The relationships for Pb and Cu were insignificant.
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