Contamination of Dump Soils by Toxic Heavy Metals: An Emerging Risk to Groundwater Quality . PNGUoT Journal of Proceedings, [S. l.], v. 1, n. 1, 2026. DOI: 10.63900/qm185870. Disponível em: https://pnguotjournals.unitech.ac.pg/index.php/PNGUoT-JoP/article/view/132. Acesso em: 7 jun. 2026.