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Asian Journal of Plant Sciences
  Year: 2005 | Volume: 4 | Issue: 2 | Page No.: 132-135
DOI: 10.3923/ajps.2005.132.135
 
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Toxicity of Trace Elements in Different Vegetables Grown on Potentially Contaminated Sites of the Korangi Industrial Area, Karachi Pakistan

Midrar-ul- Haq, Riaz A. Khattak, Haji Khan Puno, M. Saleem Saif, Kazi Suleman Memon and Nabi Bux Sial

Abstract:
This study presents toxicity of trace elements (Zn, Cu, Fe, Mn, Cd, Cr, Ni, Pb) in different vegetables grown on potentially contaminated sites of the Korangi Industrial Area, Karachi (Sindh) Pakistan. A total of 40 effluent irrigated and 4 tubewell irrigated considered as background samples were collected and analyzed for trace elements concentration. The maximum concentrations of trace elements absorbed by different vegetables grown on effluent irrigated soils were 78.8, 103.25, 638.8, 973.3, 7.4, 22.5, 88.0 and 64.0 mg kg-1 for Zn, Cu, Fe, Mn, Cd, Cr, Ni and Pb, respectively. However, the background plant samples showed the maximum concentrations of 32.4, 19.5, 172.5, 111.8, 1.8, 4.2, 14.8 and 12.4 mg kg-1 for the above respective elements. The values observed in this study were also compared with the toxic and excessive levels. The comparison showed that 100, 13, 18, 50, 93 and 50% of samples contained toxic or excessive levels of Cu, Mn, Cd, Cr, Ni and Pb, respectively. The concentration of trace elements in effluents irrigated plants were higher than those in tubewell irrigated plants and also higher than those generally reported in the literature.
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How to cite this article:

Midrar-ul- Haq, Riaz A. Khattak, Haji Khan Puno, M. Saleem Saif, Kazi Suleman Memon and Nabi Bux Sial, 2005. Toxicity of Trace Elements in Different Vegetables Grown on Potentially Contaminated Sites of the Korangi Industrial Area, Karachi Pakistan. Asian Journal of Plant Sciences, 4: 132-135.

DOI: 10.3923/ajps.2005.132.135

URL: https://scialert.net/abstract/?doi=ajps.2005.132.135

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