KH. Usha, B. Manihar Sharma and K. Khelchandra Singh
Abstract
The present study attempts to analyse some of the important physico-chemical parameters of the water samples of the Poiroupat lake, Imphal east district, Manipur, located at a distance of 15 km from the Imphal town. Various physico-chemical parameters were analysed during 2006 at monthly intervals by following standard methods. Among the various parameters recorded the overall surface water temperature ranged from 11.0 to 30.1deg. C; Turbidity index (Secchi-disc transparency) from 32.5 to 142.3 cm; Total solute content from 35 mgL-1 (December) to 240 mgL-1 (July); pH from 5.0 to 7.4; Electrical Conductivity varied from 40.0 mS cm1 to 400.0 m S cm1 ; Dissolved Oxygen from 1.0 to 10.0 mgL-1; Free Carbon Dioxide ranged from 3.0 to 39.0 mgL-1; while Chloride values ranged from 12.8 to 75.2 mgL-1; Total Alkalinity varied from 11.0 to 147.0 mgL-1; Total Hardness ranged from 30.0 to 974.0 mgL-1.