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Seasonal Dynamics of Dissolved Metals in Surface Coastal Waters of Southwest India


Spatial and temporal variations in concentration of dissolved metals viz. Copper (Cu), Lead (Pb), Chromium (Cr), Nickel (Ni), Zinc (Zn), Cadmium (Cd) and Mercury (Hg) in surface waters of southwest coast of India were studied. Concentrations of metals showed an aberration both temporally and spatially. Seasonal average concentrations of the analyzed metals followed the order Zn > Ni > Cu > Pb > Cd > Cr > Hg. The degree of contamination due to metal was determined by comparison with coastal water quality criteria. It established enrichment of Cu, Zn, Ni and Hg due to anthropogenic influence along southwest coast of India.

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The authors thank Dr. N. P. Kurian, Director, CESS for the facilities provided. The financial assistance from Ministry of Earth Science, New Delhi in the form of a sponsored project Coastal Ocean Monitoring and Prediction System (COMAPS) is gratefully acknowledged.

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Correspondence to P. Udayakumar.

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Udayakumar, P., Chandran, A., Jean Jose, J. et al. Seasonal Dynamics of Dissolved Metals in Surface Coastal Waters of Southwest India. Bull Environ Contam Toxicol 87, 662–668 (2011).

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  • Heavy metal
  • Enrichment factor
  • Coastal water
  • Southwest India