This study evaluated lead and cadmium uptake by maize grown on soils artificially spiked with smelter fly ash and possible changes in chemical fractionation of these metals in the soil. Maize grown on the less contaminated soil (1,466 mg Pb kg−1; 19 mg Cd kg−1) did not exhibit any chlorosis/necrosis symptoms or lower biomass yields compared to the control. The addition of the chelating agent ethylenediaminetetraacetic acid increased lead uptake by maize, as expected. Neither maize cultivation nor the addition of the chelant influenced significantly the chemical fractionation of lead and cadmium in the soil during the experiment.
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The presented study was supported by the research project from Czech Science Foundation (GAČR 526/06/0418). The institutional support was provided by the Ministry of Education, Youth and Sports of the Czech Republic (MSM 6046070901 and MSM 0021620855). The fly ash samples were obtained with the courtesy of Mr. Zdeněk Kunický, the technical director of the Příbram smelter (Kovohutě Příbram).
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Komárek, M., Ettler, V., Száková, J. et al. Bioavailability of Lead and Cadmium in Soils Artificially Contaminated with Smelter Fly Ash. Bull Environ Contam Toxicol 83, 286–290 (2009). https://doi.org/10.1007/s00128-009-9742-4
- Smelter fly ash