INVESTIGATION OF THE TOXICITY LEVEL OF HEAVY METALS RESULTED FROM THE MIGRATION OF LEACHATE POLLUTANTS ACROSS THE SOIL PROFILE OF A MUNICIPAL DUMPSITE. FJS. 2023;3(2):154-160. Accessed September 12, 2025. http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1496