Water is essential for the survival of organisms including human beings on earth. One of the important traditional parameter of groundwater quality is its hardness. Inverse Distance Weighted (IDW) approach is applied to study the spatial distribution of hardness in the Gulbarga Taluk. The present study shows the total hardness concentration in Gulbarga taluk is ranged between 24 and 1350 mg/l with a mean value of 352 mg/l and it is of non-carbonated type of hardness. The study helped to pinpoint the locations of higher concentrations of total hardness of groundwater. Majority of the people of the Gulbarga Taluk who are living in the neighbourhood of about 76% of the sampled wells of the study area are consuming very hard water. The author is of the opinion and suggests that there is an urgent need of educating people adopting to one of the hardness removal techniques for drinking water as well as domestic consumption at homes or use of water purifiers and the public administration in the public water supply system in the Gulbarga Taluk as a public health concern.
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2022: 6.012
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