Determination of phytoextraction potential of plant species for toxic elements in soils of abandoned sulphide-mining areas

This study has determined contamination levels in soils and plants from the São Domingos mining area, Portugal, by k 0 -INAA. Total concentrations of As, Sb, Cr, Hg, Cu, Zn and Fe in soils were very high, exceeding the maximum limits in Portuguese legislation. Concentrations of toxic elements like A...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2009-10, Vol.282 (1), p.21-27
Main Authors: Freitas, M. C., Pacheco, A. M. G., Anawar, H. M., Dionísio, I., Dung, H. M., Canha, N., Bettencourt, A., Henriques, F., Pinto-Gomes, C. J., Capelo, S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
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Summary:This study has determined contamination levels in soils and plants from the São Domingos mining area, Portugal, by k 0 -INAA. Total concentrations of As, Sb, Cr, Hg, Cu, Zn and Fe in soils were very high, exceeding the maximum limits in Portuguese legislation. Concentrations of toxic elements like As, Sb and Zn were highest in roots of Erica andevalensis , Juncus acutus , Agrostis castellana and Nicotiana glauca . Additionally, As, Br, Cr, Fe, Sb and Zn in all organs of most plants were above toxicity levels. Those species that accumulated relatively high concentrations of toxic elements in roots (and tops) may be cultivated for phytostabilisation of similar areas.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-009-0222-4