Friday, 22 February 2013

Accumulation of heavy metals (Cd, Cr, Ni, Co, Cu and Fe) in various parts of Zea mays treated with asbestos effluent

Accumulation of heavy metals (Cd, Cr, Ni, Co, Cu and Fe) in various parts of Zea mays treated with asbestos effluent
Amar Nath Giri*1, Aditya Verma2, Shiv S. Yadav2, Shikha Chaudhary2 and Y.K.Sharma2
1Environment Management System, NFCL, Nagarjuna road, Kakinada - 533 003, India
2Department of Botany, University of Lucknow, Lucknow - 226 007, India
*e-mail: goswami818@yahoo.com, amarnathgiri@nagarjunagroup.com
Abstract: The treated asbestos effluent was collected from asbestos industry. Different concentrations i.e. control (0%), 20, 40, 60, 80 and 100% were prepared from asbestos effluent. Maize (Zea mays) was grown in sand pot culture. All metals (Cr, Cd, Cu, Ni, Fe and Co) concentration was increased with increasing concentration of treated effluent of asbestos industry in tissues of root, stem and leaves. The heavy metals concentration was significantly increased in root on 40, 60, 80 and 100% of concentration of asbestos effluent. The plant tissue analysis in our experiment shows higher accumulation of heavy metals in different plant parts with the application of asbestos effluent, although the level of accumulation varied from part to part. The higher accumulation of heavy metals in roots than aerial parts can be explained as heavy metals remains bound in the roots that is why did translocation from roots to leaves.
Key words: Asbestos effluent, Chromium, Cadmium, Copper, Nickel, Iron and Cobalt

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