Seasonal Variations of Heavy Metal Distribution in Waters and Green Mussels of Ennore and Royapuram Estuaries, Tamilnadu, India

The objective of this study is to comparatively analyse and assess the heavy metal pollution in coastal areas of Ennore and Royapuram, Tamilnadu, India. Ennore coast receives untreated/treated effluents from Manali Industrial belt, which houses many chemical Industries. Royapuram mainly receives domestic sewage. Analyses of water and mussel samples were done by ICP-AES. During summer all the dissolved heavy metals exhibited maximum values. The result shows that concentrations of copper, cadmium, zinc and lead were above the permissible limits.