Department of Chemistry, Government P.G. College Kota Rajasthan Pin324001 India

Email:-meenabharat81@gmail.com

Seasonal variation of physico-chemical parameters of openwell water in Bakani tehsil of Jhalawar district, Rajasthan were determined. The hydrochemical investigation revealed that the seasonal effect does change the concentration of various ions present in the open-well water. Water samples were analyzed for physico-chemical parameters including pH, Turbidity, EC, TDS, Total Hardness, Na+, K+, Cl-, F-, NO3 - and SO4 -2. The data showed variation of the investigated parameters in samples as follows: pH, 6.92 to 9.33 ; Turbidity, 0.5 to 13.1 NTU ; EC, 1000 to 6200 μscm-1 ; TDS, 340 to 1850 mg/l ; Total Hardness, 88.2 to 745.4 mg/l ; Na+, 11.4 to 54.8 mg/l ; K+, 10.5 to 70.8 mg/l ; Cl-, 24.4 to 656.8 mg/l ; F-, 0.12 to 1.65 mg/l ; NO3 -, 19.3 to 91.5 mg/l ; SO4 -2, 8.5 to 64.5 mg/l. The concentrations of most of the investigated parameters in the water sample were exceeded the permissible limit of WHO (1971).