In this diploma thesis differences in the accumulation of Cd, Pb and Zn in lettuce, green beans, red beet, shallot and kohlrabi in differently contaminated soil were evaluated. Two soil samples – with different contamination levels were collected in which different vegetables were grown. The contaminated soil was gathered in Celje, in the neighbourhood of a big industrial factory. Metals concentrations in contaminated soil exceeded critical values determined by regulation (Regulation, 68/1996): Cd = 46mg/kg; Pb = 4067 mg/kg; Zn = 40166 mg/kg. Soil that was used for control group was gathered in the suburban area of Celje, its metals concentrations were under the regulation limit values: Cd = 1 mg/kg; Pb = 34 mg/kg; Zn = 138 mg/kg. The soil was homogenized and put into 10 liter pots. Individual vegetable species was cultivated in five pots (repetition), for each group.The vegetable samples were taken when plant reached technological maturity. After the proper preparation of samples, the concentrations of Cd, Pb and Zn in edible portions of vegetables were measured. The result showed that higher concentration of metals in soil was associated with higher concentration of metals in edible portions. The concentrations of accumulated metals from soil in edible portions depended on vegetable species. Green beans and kohlrabi showed lower levels of accumulation. None of their samples did not exceed the Cd and Pb concentration values determined by the regulation, not even in contaminated group. Lettuce, red beet and sallot appeared to be better metals accumulators. All the samples in contaminated group exceeded Cd and Pb concentration values determined by the regualation. Higher Cd, Pb and Zn concentrations in soil influance yield decreease in lettuce, green beans, shallot and kohlrabi.
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