Abstract
The water quality index plays a vital role in defining the overall characteristics of a water body. The current article discusses and compares three different water quality indices, viz., the National Sanitation Foundation Index, the overall water quality index and the overall index of pollution, for assessing the quality of lake water bodies of Vadodara, Gujarat, India. Water quality parameters for three ponds were determined for 1 year and were used to compute the three water quality indices. All three indices showed different results in depicting the actual status of a water body from medium to non-polluted to polluted water body, and hence some modifications in indices have been proposed by changing the unit weightage in the individual index. Modification in unit weight in the National Sanitation Foundation Index and overall water quality index was done according to the parameter dominance. When adjustments are made to these indices based on the parameter dominance and pollution of the water body and compared to the WQI calculated with a pre-determined range and parameter weightage, the modified index helps determine the water body’s actual state.
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HP acknowledges the financial support by the SHODH—Scheme for developing high-quality research under the Education Department of Gujarat state (CM Fellowship Program).
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Parmar, H., Samnani, P. Assessment of lakes of Vadodara city in terms of water quality indices and their comparison. Int J Energ Water Res (2022). https://doi.org/10.1007/s42108-022-00231-y
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DOI: https://doi.org/10.1007/s42108-022-00231-y