Application of Principal Component Analysis (PCA) in groundwater quality evaluation: A case study of arid region. Energy & Environment Management, [S. l.], v. 1, n. 2, p. 1–12, 2025. DOI: 10.63333/eem.v1n21. Disponível em: https://ojs.awpublishing.org/eem/article/view/17. Acesso em: 25 jun. 2025.