SamailaA., BelloS., IliyasuS.R. and SaniM. 2022. THE BACKGROUND CONCENTRATION OF SOME HEAVY METALS AT NYSC ORIENTATION CAMP LAYOUT, KATSINA. FUDMA JOURNAL OF SCIENCES. 6, 4 (Aug. 2022), 150 - 155. DOI:https://doi.org/10.33003/fjs-2022-0604-1051.