Environmental Chemistry Letters

, Volume 7, Issue 1, pp 51–54 | Cite as

Bioaccumulation of lead and the influence of chelating agents in Catla catla fingerlings

  • PL. RM. Palaniappan
  • N. Krishnakumar
  • M. Vadivelu
Original Paper

Abstract

Lead is a widespread element and one of the persistent and cumulative pollutants of the environment. The present study deals with the bioaccumulation of lead and the influence of chelating agents, meso 2,3-dimercaptosuccinic acid (DMSA), D-Penicillamine and CaNa2EDTA in reducing the concentration of lead on the selected organs of Catla catla fingerlings for both acute and chronic exposures by using ICP-AES. It is inferred from the present findings that there was a correlation between environmental conditions and the heavy metal contents of the fish. The highest concentration of lead is found in kidney tissues and the lowest in muscle tissues. The accumulation pattern of lead in the selected organs of Catla catla is: kidney > liver > gill > brain > muscle. Also, it has been found that the treatment of chelating agents, DMSA, D-Penicillamine and CaNa2EDTA reduces the concentration of lead significantly for both acute and chronic exposures. The results also show that DMSA is the most effective chelator of lead in reducing the body burden of C. catla fingerlings. The observed data further indicate that C. catla could be suitable for monitoring organisms to study the bioavailability of water-bound metals in freshwater habitats.

Keywords

Lead Catla catla ICP-AES Bioaccumulation DMSA D-Penicillamine CaNa2EDTA 

Notes

Acknowledgements

The authors are grateful to the authorities of Annamalai University for providing all necessary facilities to carry out this work.

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • PL. RM. Palaniappan
    • 1
  • N. Krishnakumar
    • 1
  • M. Vadivelu
    • 1
  1. 1.Department of PhysicsAnnamalai UniversityAnnamalai NagarIndia

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