1Indian Institute of Technology, Bhubaneswar, India
2Institute of Minerals and materials Technology, Bhubaneswar, India
Online published on 3 January, 2012.
The temporal and spatial distribution of salinity, DO, BOD, turbidity, pH, hardness and dissolved nutrients of surface water collected from different points of Dhamra estuary were measured during February2007 to January2008. The pH of water was alkaline throughout the year. The salinity, conductance, hardness increased towards the river mouth as compared to inland stations. The DO level was found to be ~ 8 mg/l while BOD remained < 3 mg/l in all cases. Nutrients (NO3, PO4, and NH3) in general exhibited decreasing trend from riverine to estuarine region. TDS values were high in the riverine and TSS values were high during monsoon period due to higher amount of floating particles. The concentration of NO3− was higher than NH3 and PO4 although the values were well within tolerance limits.
Estuary, DO, BOD, Nutrients and Salinity
