Okoro Joel Ejiofor, Iyi Emmanuel Chibuike, Ezeugwu Innocent Onyebuchi. ENVIRONMENTAL ASSESSMENT OF HEAVY METAL CONTAMINATION AND ECOLOGICAL RISK IN SOILS AROUND PETROL STATIONS IN ONITSHA, SOUTHEASTERN NIGERIA. ijees [Internet]. 2026 Sep. 12 [cited 2026 Sep. 13];11(1):94-133. Available from: https://ijees.ielas.org/index.php/ijees/article/view/104