Balabanova, Biljana and Stafilov, Trajče and Baceva, Katerina (2015) Bioavailability and bioaccumulation characterization of essential and heavy metals contents in R. acetosa, S. oleracea and U. dioica from copper polluted and referent areas. Journal of Environmental Health Science & Engineering, 13 (2).
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Abstract
Background: Bioavailability of metals occurring in soil is the basic source of its accumulation in vegetables and
herbs. The impact of soil pollution (due to urban and mining areas) on the food chain presents a challenge
for many investigations. Availability of metals in a potentially polluted soil and their possible transfer and
bioaccumulation in sorrel (Rumex acetosa), spinach (Spinacia oleracea) and common nettle (Urtica dioica), were examined.
Methods: Microwave digestion was applied for total digestion of the plant tissues, while on the soil samples
open wet digestion with a mixture of acids was applied. Three extraction methods were implemented for the
bioavailable metals in the soil. Atomic emission spectrometry with inductively coupled plasma was used for
determination of the total contents of 21 elements.
Results: Significant enrichments in agricultural soil for As, Pb and Zn (in urban area), Cd, Cu and Ni (in a copper
mine area), compared with the respective values from European standards were detected. On the basis of three
different extraction methods, higher availability was assumed for both lithogenic and anthropogenic elements.
Translocation values >1 were obtained for As, Cd, Cu, Ni, Pb and Zn. Higher bioconcentrating value was obtained
only for Cd, while the bioaccumulation values vary from 0.17 for Cd to 0.82 for Zn. Conclusions: The potential availability of hazardous metals in urban and mining soils is examined using DTPA-TEA-CaCl2 (urban) and HCl (Cu-mines areas). Our results suggested that S. oleracea and R. acetosa have a phytostabilization potential
for Cd, Cu, Ni and Pb, while U. dioica only for Cu. R. acetosa has a potential for phytoextraction of Cd in urban and copper polluted areas.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Chemical sciences Natural sciences > Earth and related environmental sciences Agricultural Sciences > Other agricultural sciences |
| Divisions: | Faculty of Agriculture |
| Depositing User: | Biljana Balabanova |
| Date Deposited: | 12 Jun 2015 08:22 |
| Last Modified: | 12 Jun 2015 08:22 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/13302 |
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