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Seasonal variation of heavy metals in coastal water of the Coromandel coast, Bay of Bengal, India

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Title Seasonal variation of heavy metals in coastal water of the Coromandel coast, Bay of Bengal, India
 
Creator Govindasamy, C
Azariah, J
 
Description 249-256
This report
presents the dissolved heavy metals and associated hydrographic and nutrients
data. Concentrations of heavy metals such as Cu, Zn, Ni, Co, Cd and Hg were
showed a rather homogeneous distribution (except Hg) within the

coastal
region, with high values of Cu (63.20 μg l-1) and Cd (66 .80 μg l-1)
at Mahabalipuram and Zn (130.20 μg l-1),Ni(14.60 μg l-1 ),
Co (9.60 μg l-1) and Hg (0.12 μg l-1) at Pondicherry during the premonsoon and monsoon
seasons respectively. High concentrations of these metals in water may be due
to the discharge of monsoonal rains carrying discharge of industrial and
agricultural wastes and sewage directly into the coast. This is substantiated
by a highly significant positive correlation between concentrations of heavy
metals in seawater and nutrients. The metal concentrations in seawater were in

order of Zn> Cu> Cd>
Ni> Co> Hg at Mahabalipuram and Zn> Cd> Cu> Co> Ni> Hg at Pondicherry. Enrichment
of heavy metals contaminations were more in the Coromandel coast, when compared
to other marine environs of the Indian coast and also compared to natural
seawater level.
 
Date 2014-01-13T10:51:27Z
2014-01-13T10:51:27Z
1999-09
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25603
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(3) [September 1999]