Assessment of physic-chemical parameters and water quality index of Viralimalai area near Koraiyar river Pudukkottai district, Tamil Nadu, India

Present work deals with the assessment of physico-chemical parameters of ground water samples were collected from Viralimalai area near Koraiyar River, Pudukkottai District, during the year 2013 in pre monsoon, monsoon and post monsoon seasons. The observed values of various physico-chemical parameters of water samples were compared with standard values recommended by WHO. A total of ten ground water samples were collected and the water chemistry of various parameters. pH, Electrical Conductivity (EC),Dissolved Oxygen (DO), Total Hardness (TH), Total Dissolved Solids (TDS), Biological oxygen demand (BOD), Chemical oxygen demand (COD), Bicarbonate (HCO3), calcium (Ca), Chloride (Cl). Magnesium (Mg), sodium (Na), potassium (K), Sulphate (SO4), and nitrate (NO3), were analysed. The Calculated values of WQI are (197.8), (208.3) and (178.0) for pre monsoon, monsoon, and post monsoon respectively. The high value of WQI has been found to be mainly from the higher values of EC, TDS, TH, COD, Ca, HCO3 and Cl in the ground water. It is shown that the water quality degradation is due to anthropogenic activities or discharge of untreated urban wastes.

Author(s): J. Sirajudeen, V. Manivel and S. Arul Manikandan

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