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Keywords = discriminant analysis, Koudiat Medouar watershed, Algeria

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14 pages, 1622 KB  
Article
Assessment of Surface Water Quality Using Water Quality Index and Discriminant Analysis Method
by Asma Mammeri, Ammar Tiri, Lazhar Belkhiri, Hichem Salhi, Djouhaina Brella, Elhadj Lakouas, Hichem Tahraoui, Abdeltif Amrane and Lotfi Mouni
Water 2023, 15(4), 680; https://doi.org/10.3390/w15040680 - 9 Feb 2023
Cited by 45 | Viewed by 7425
Abstract
Given the complexity of water quality data sets, water resources pose a significant problem for global public order in terms of water quality protection and management. In this study, surface water quality for drinking and irrigation purposes was evaluated by calculating the Water [...] Read more.
Given the complexity of water quality data sets, water resources pose a significant problem for global public order in terms of water quality protection and management. In this study, surface water quality for drinking and irrigation purposes was evaluated by calculating the Water Quality Index (WQI) and Irrigation Water Quality Index (IWQI) based on nine hydrochemical parameters. The discriminant analysis (DA) method was used to identify the variables that are most responsible for spatial differentiation. The results indicate that the surface water quality for drinking is of poor and very poor quality according to the WQI values, however, the IWQI values indicate that the water is acceptable for irrigation with restrictions for salinity sensitive plants. The discriminate analysis method identified pH, potassium, chloride, sulfate, and bicarbonate as the significant parameters that discriminate between the different stations and contribute to spatial variation of the surface water quality. The findings of this study provide valuable information for decision-makers to address the important problem of water quality management and protection. Full article
(This article belongs to the Special Issue Desalination Treatment of Irrigation Water)
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