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Vol. 28 No. 6 (2016): Vol 28 Issue 6

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Remediation of Heavy Metal-Contaminated Soil by Ornamental Plant Zinnia (Zinnia elegance L.)

https://doi.org/10.14233/ajchem.2016.19701
Nusrat Ehsan
Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
Rab Nawaz
Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
Sajjad Ahmad
COMSATS Institute of Information Technology (CIIT), Vehari Campus, Pakistan
Muhammad Arshad
Department of Agriculture and Food Technology, Karakoram International University, Gilgit-Baltistan, Gilgit, Pakistan
Muhammad Umair
Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
Muhammad Sarmad
Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan

Corresponding Author(s) : Rab Nawaz

rab.nawaz@imbb.uol.edu.pk; rnuaf@yahoo.com

Asian Journal of Chemistry, Vol. 28 No. 6 (2016): Vol 28 Issue 6

Abstract

Phytoremediation potential of ornamental plant Zinnia (Zinnia elegance) was assessed for contaminated soil with heavy metals (lead and chromium). Plants were grown in pots having soils with different levels of metal contamination i.e. T1 (10 ppm), T2 (20 ppm), T3 (30 ppm), T4 (40 ppm), T5 (50 ppm), T6 (60 ppm) and T7 (70 ppm). Plants were also grown in pots with uncontaminated soil as control treatment (T0). After pot study (6 weeks), plants were harvested, different physical parameters were measured and plant samples were prepared for chemical analysis. Soil was collected from the pots to prepare representative soil samples for chemical analysis. Atomic absorption spectrophotometer was used to measure concentration of heavy metals in plants and soil. The results indicated that plants grown in lead contaminated soils were healthier as compared to the plants grown in chromium-contaminated soils. The fresh and dry weight, bioconcentration factor and translocation factor were also higher in the lead-contaminated soils. The results indicated that the remediation capacity of Z. elegance is better for lead contamination. Therefore, this plant can be used for soil remediation contaminated with lead.

Keywords

Soil contamination Heavy metals Phytoremediation Soil pollution
Ehsan, N., Nawaz, R., Ahmad, S., Arshad, M., Umair, M., & Sarmad, M. (2016). Remediation of Heavy Metal-Contaminated Soil by Ornamental Plant Zinnia (Zinnia elegance L.). Asian Journal of Chemistry, 28(6), 1338–1342. https://doi.org/10.14233/ajchem.2016.19701
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