Iyi Emmanuel Chibuike, Okoro Joel Ejiofor, Anachuna, Nonyelum Geraldine. GEOCHEMICAL ASSESSMENT OF HEAVY METALS IN SURFACE SOIL FROM AUTO-WORKSHOPS IN ONITSHA, SOUTHEASTERN NIGERIA. ijees [Internet]. 2022 Jul. 10 [cited 2026 Apr. 20];7(1):68-92. Available from: https://ijees.ielas.org/index.php/ijees/article/view/86