Heavy metals distribution and enrichment in the sediments of southern east coast of India

Studies of Fe, Mn, Cu, Cr, Pb, Zn, Hg, and Cd were carried out on bed sediments collected from different parts of the south-east coast of India including coastal, river and river mouth regions. Data indicate that the concentration of all the metals considered decreases towards the coast. For example...

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Bibliographic Details
Published in:Marine pollution bulletin 1990-07, Vol.21 (7), p.324-330
Main Authors: Subramanian, V., Mohanachandran, G.
Format: Article
Language:English
Subjects:
Marine
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Summary:Studies of Fe, Mn, Cu, Cr, Pb, Zn, Hg, and Cd were carried out on bed sediments collected from different parts of the south-east coast of India including coastal, river and river mouth regions. Data indicate that the concentration of all the metals considered decreases towards the coast. For example, Pb concentration at 65 km away from the coast has an average value of 50 ppm, at 25 km away from the coast is 20 ppm and along the coast is 5–10 ppm. Grain size is a major controlling factor in the distribution of heavy metals in the coastal sediments. Geoaccumulation indices calculated for these metals show that Cd is the most enriched metal followed by Pb. Other metals are at background concentrations.
ISSN:0025-326X
1879-3363
DOI:10.1016/0025-326X(90)90792-7