ORIGINAL RESEARCH
Accumulation of Zn, Cu, Pb and Cd by Dandelion
(Taraxacum officinale Web.) in Environments with
Various Degrees of Metallic Contamination
E. Królak*
Department of Ecology and Environmental Protection, University of Podlasie, Prusa 12, 08-110 Siedlce, Poland
Pol. J. Environ. Stud. 2003;12(6):713–721
KEYWORDS
ABSTRACT
Contents of Zn, Cu, Pb and Cd have been examined in soils and dandelion (Taraxacum officinale Web.)
in uncontaminated (Biała Podlaska, area of eastern Poland) and contaminated environments (Ruda Śląska
and Bytom – Upper Silesia area). Based on the value of the cumulation factor (FC) a reduction of Zn and
Cu collection by dandelion has been observed along with an increase of the concentration of these metals
in the soil. Such a dependence is not so pronounced in the case of Pb and Cd. Even in an environment contaminated
excessively with Cd (IV degree soil contamination) this element is collected by dandelion only
in concentrations proportional to its content in the soil.
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