SUSHILA. Assessing Groundwater Quality in Prayagraj City: Spatial Patterns of pH, Hardness, TDS and Major Ions. Stallion Journal for Multidisciplinary Associated Research Studies, [S. l.], v. 5, n. 5, p. 11–18, 2026. DOI: 10.55544/sjmars.5.5.2. Disponível em: https://sjmars.com/index.php/sjmars/article/view/410. Acesso em: 10 oct. 2026.