Contamination levels in three sectors of Villavicencio using the geoaccumulation (Igeo) index. Orinoquia, [S. l.], v. 19, n. 1, p. 109–117, 2015. DOI: 10.22579/20112629.344. Disponível em: https://orinoquia.desarrollo-ojs1.metadatos.org/index.php/orinoquia/article/view/344. Acesso em: 15 apr. 2026.