Heavy Metal Content in Common Sorrel Plants (Rumex Acetosa L.) Obtained from Natural Sites in Małopolska Province
M. Gawęda
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Department of Vegetable Crops and Horticulture Economics, Agricultural University in Kraków, Al. 29 Listopada 54, 31-425 Kraków, Poland
Pol. J. Environ. Stud. 2009;18(2):213-218
17 samples of common sorrel were collected from natural sites in the Małopolska region. The content of selected heavy metals (zinc, copper, manganese, iron, chromium, nickel, lead and cadmium) were determined in individual plant organs. The greatest diversification occurred for cadmium, manganese and zinc; the smallest differences were noted for copper. Correlation coefficients between total soil heavy metal concentrations and their content in sorrel were generally low and very low; only the coefficients for cadmium and lead may be considered as high and very high. Allowable lead content was exceeded in all samples of sorrel leaves, whereas cadmium concentrations were in about 90% of the samples. Sorrel roots most strongly accumulated the metals, whereas the smallest content was found in the stems.
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