Deepak R. Dash, D. Mishra, Tapana R. Mahapatro, S.K. Patro and B.K. Sahu, P.G.
Abstract
Study of cadmium speciation was carried out for a period of one year in Rushikulya Estuary, East Coast of India. Seasonal variations in dissolved and particulate fractions of cadmium were found to be high may be due to precipitation in upper reaches of the estuary. The dissolved and particulate fractions of the element showed a significant behaviour in different seasons because of their involvement in the bio-geochemical cycles. Further, the physico-chemical parameters indicated a significant variation in this estuary that might have resulted from estuarine mixing. The addition and removal of dissolved fractions of cadmium in the estuary were explained on the basis of adsorption/desorption mechanism using the concept of theoretical dilution line (TDL).