A study on the distribution of copper and zinc in agniar estuary, southeast coast of India

The seasonal variations of heavy metal distribution were studied during July 2014 to June 2015 in the Agniar estuary (Lat.10° 20' N Long.79° 23’E) Adirampattinam southeast coast of India. The range of distribution of copper in the estuarine water and sediments are found to be 3.8 to11.6 µg/g and 33.3- 41.1 µg/g respectively. In both water and sediment maximum concentration of copper was observed in November 2014. The minimum concentration of copper was observed during March 2015 in water and June 2015 in sediments. The concentration of zinc was found to be more than that of copper both in the estuarine water as well as in the sediments. The concentration of zinc in water recorded from 6.5 µg/g to 20.7 µg/g and in the sediment from 36.5 µg/g to 52.8 µg/g The metal concentration was found to be maximum in June  2015 in both water and sediments