Asian Journal of Environment and Disaster Management 2010 2 2

doi: 10.3850/S179392402010000220

Heavy Metals (CD, CR and PB) Contamination in Pulicat Lake Environment, East Coast of India

B. Prabhu Dass Batvari^a and R. R. Krishnamurthy^b Department of Applied Geology, University of Madras, Chennai, India 600 025. ^abatvarib@gmail.com ^brrkrishnamurthy@gmail.com

ABSTRACT

The concentrations of three heavy metals chromium (Cr), cadmium (Cd) and lead (Pb) were examined in water and sediment; collected from Thirty three different stations at Pulicat Lake, which receives effluents from industries located in North Chennai Coastal region. Concentrations of Cd (67.12 µg/l) , Cr (67 µg/l) and Pb (424.12 µg/l )were found to be in water, when compared to the pre and post-monsoon the concentrations of Cd and Cr higher in post-monsoon there is no change in Pb. The concentrations of Cd (7.30 µg/g), Cr (6345 µg/g) and Pb (467.40 µg/g) were found to be high in sediment. When compared to pre and postmonsoon the concentrations of Cd and Pb were to be high in pre monsoon, Cr were high in post-monsoon.

Keywords: Heavy metal, Accumulation, Pulicat lake.

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