Uloko FO, Agu MN, Agomuo JC, Joseph IA. Evaluating Heavy Metal Pollution in Nigerian Coal: Enrichment Factors, Pollution Indices and Environmental Implications. JOSRAR [Internet]. 2025 Apr. 15 [cited 2025 Apr. 25];2(2):33-42. Available from: https://josrar.esrgngr.org/index.php/josrar/article/view/58