PHYSICO-CHEMICAL CHARACTERISTICS OF VADUVUR LAKE, THANJAVUR DISTRICT

摘要

Physico-chemical parameters of Vaduvur Lake, Thanjavur District, Tamil Nadu were studied from October 2010 to September 2011. Water temperature varied from 26 to 34℃, pH of the water was alkaline throughout the year. Turbidity (3.9 - 82.4 NTU), Dissolved Oxygen (3.7 - 6.4 mg/lit). Total hardness (50 - 340 mg/lit), Salinity (0.10 - 0.32 mg/lit), calcium (110 -185 mg/lit), Magnesium (39.3 - 82.9 mg/lit), Nitrate(0.01 -0.06 mg/lit) Chloride(7.2 -37.0 mg/lit)and phosphate level from 0.14 to 0.43 mg/ lit were noted. The'above physico-chemical parameters were changed during pre monsoon, monsoon, summer and post monsoon seasons.