Study of physico-chemical parameters of three different urban pond water of Nadia district, West-Bengal, India

Abstract

The present study was carried out to make a comparative ecological assessment of three urban ponds of Nabadwip at Nadia district, West-Bengal. The average value of water temperature in P-1, P-2 and P-3 ponds were 29.6, 30.0 and 29.8°C respectively, average value of water pH was the highest in the P-2 (7.33). The maximum average DO value was found in P-2 (5.67 mg l-1), average value of free CO2 was maximum in the P-3 (38.07 mg l-1). The highest value of alkalinity was found in P-3 (315 mg l-1). The maximum concentration of BOD and COD were recorded in P-3 accordingly (3.08 mg l-1) and (75.17 mg l-1). The highest average value of Phosphate-phosphorous was recorded in P-2 (0.24 mg l-1) and the Nitrate-nitrogen concentration was recorded maximum in P-3 (1.48 mg l-1). The present finding established that, the well managed pond (P-2) showed better ecological conditions compare to unmanaged ponds.