Ecology, Environment and Conservation Paper

STUDY OF GROUND WATER QUALITY OF DAHEGAM TALUKA, GUJARAT, INDIA

Mayur C. Shah, Prateek G. Shilpkar, Ankita J. Acharyaa, Kshama H. Balapure, Ekta A. Desai and Dipika N. Patel

Abstract

Present study deals with physico-chemical parameters such as pl I, electrical conductivity (EC), total dissolved solids (TDS), total alkalinity (TA), calcium hardness(Ca I I), magnesium hardness (MgH), total hardness (TH), chloride (Cl), fluoride (1), sulphate (S012), sodium (Na'), potassium (K*), dissolved oxygen (DO), biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of water samples of bore wells of forty villages of Dahegam taluka of Gujarat state, India. The experimental values of water samples were compared with standard values given by World Health Organization (WHO) and United State Salinity Laboratory for drinking and irrigation purposes, respectively. Water Quality Index (WQI) was also calculated to know the overall quality of water samples. The statistical analysis like mean, standard deviation (SD), coefficient of variance (%CV), analysis of variance (ANOVA), t-test, coefficient of correlation (r) and regression analysis of obtained data were carried out. The results show that the quality of water of North and South regions of Dahegam taluka is very poor and the quality of water of East and West regions of Dahegam taluka is poor for the drinking purpose. Results also show that quality of water for irrigation purpose is quite good and poor for 77.50% and 22.50% villages of Dahegam taluka, respectively. 77 pairs and 28 pairs of water quality parameters bear positive and negative correlation, respectively out of 105 pairs studied. The variance was found significant at 1% level of significance in case of total alkalinity among the four regions of Dahegam taluka. The linear relation also established for each pair of water quality parameters of studied water samples.