• Medidi Raja Sekhar

The present study was carried out to determine the water quality in terms of seasonal variability and behavior of physico-chemical, nutrients and metal parameters for a period of one year during 2009 in the estuarine waters of Gauthami Godavari along its longitudinal stretch at seven station from the head of the estuary to mouth of the estuary. Trace metals (Cd, Cu,) in general, exhibited a decreasing trend from riverine to estuarine region indicating that dominant occurrence of river water. Relatively high concentrations in monsoon are attributed to the combined effects of precipitation, river runoff and land drainage. Lower concentration of metals during premonsoon season due to its utilization by biological activity, or by chemical and physical activity like desorption or flocculation as pH and salinity are increased during this season. Information of distinct spatial and seasonal variations of particulate trace metals were observed in the monsoon driven estuary like Gauthami-Godavari is essential to assess their involvement in the biogeochemical cycles, their possible accumulations in organisms, and their transfer to human beings through food chain. Suspended particulate matter (SPM) showed an increasing trend from pre-monsoon to monsoon followed by post-monsoon season can be attributed to the high river discharge and land runoff containing significant quantities of terrestrial material into to the estuary. So far there are no detailed seasonal studies of trace metal distribution in the estuarine waters of Godavari; the author has therefore been taken up the present investigation of Gauthami-Godavari.

Godavari Estuarine waters, suspended particulate matter, particulate trace metals, Flocculation.

"Seasonal Behavior of Trace Metals (Cd, Cu,) in the Godavari River, East Coast of India, Bay of Bengal", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.1-10, May-2019, Available :http://www.jetir.org/papers/JETIR1905401.pdf

"Seasonal Behavior of Trace Metals (Cd, Cu,) in the Godavari River, East Coast of India, Bay of Bengal", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp1-10, May-2019, Available at : http://www.jetir.org/papers/JETIR1905401.pdf