Metal pollution in coarse sediments of Tuticorin coast,Southeast coast of India |
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Authors: | N Jayaraju B C Sundara Raja Reddy K R Reddy |
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Institution: | (1) Department of Geoinformatics, Yogi Vemana University, Kadapa, 516 003, India;(2) Department of Geology, S.V. University, Tirupati, 517 502, India |
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Abstract: | Indian coastal waters are subjected to considerable pressure from sewage and industrial wastes, which are responsible for
the contamination of the coastal sediments with consequent loss in biosphere. The present investigation attempts to study
the significance of coarse material (Sand fraction) in the distribution of metals in polluted marine sediments. The study
revealed that coarse Sand component contains a relatively significant proportion of the anthropogenic metals (Cd, Cu, Pb and
Zn) and therefore it cannot be neglected in metal pollution studies of coastal sediments. Further, the distribution of anthropogenic
metals in both Silt + Clay and Sand fraction follow the same suit indicating similar pollution sources. From the total sediment
type (Silt + Clay and Sand fraction) all anthropogenic metals had a noticeable amount (>50%) in the acid extractable (and
potentially bio-available) fraction. This article stresses the importance of coarse fraction in metal pollution studies in
Indian coastal system. |
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Keywords: | Metal pollution Sand fraction Coastal zone Significance Sediment Bay of Bengal |
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