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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Sep 2010, 31 (5)                                     Back


abstract_01

Seasonal variations in physico-chemical parameters and heavy metals in water and sediments of Uppanar estuary, Nagapattinam, India

 

R. Sankar1, L. Ramkumar1, M. Rajkumar*1, 2, Jun Sun2 and G. Ananthan1

 

 

1Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai - 608 502, Tamil Nadu, India

 

2Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology,

Chinese Academy of Sciences, 7th Nanhai Road, Qingdao - 266 071, P.R. China

(Received: April 09, 2009; Revised received: July 30, 2009; Accepted: August 26, 2009)

 

Abstract: The present study was carried out to determine the physico-chemical characteristics and heavy metals in water and sediments in Uppanar Estuary, Nagapattinam, Southeast coast of India during January to December 2007. The minimum and maximum values of atmospheric and surface water temperatures (oC), salinity (?), pH and dissolved oxygen (ml l-1) were:? 26.0-35.0; 25.0-33.5; 8.0-35.0; 7.2-8.2 and 2.8-5.5 respectively. The ranges of nitrate, nitrite, phosphate and silicate were: 7.05-24.23; 0.82-3.15; 0.31-2.18 and 40.0-198.0 (?M) respectively. The ranges of heavy metals in water (?g 1-1) and sediment (?g g-1) copper, zinc, cadmium and mercury were: 2.45-18.25; 26.43-101.24; 1.23-24.35 and 0.01-0.22 and 5.02-81.27; 22.47-75.42; 2.25-10.06 and 0.01-0.16 respectively.

Key words: Physico-chemical parameters, Heavy metals, Uppanar estuary, Nagapattinam

?????? PDF of full length paper is available online

 

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