Nwaedozie, J. M., Nabaida, D. D., & Naador, F. S. (2025). Using Geo-Accumulation Index and Enrichment Factor to Assess Spatial Distribution of Heavy Metals in Roadside Soils and Vegetables Along Nnamdi Azikiwe Expressway, Kaduna. Faculty of Natural and Applied Sciences Journal of Applied Chemical Science Research, 2(4), 40–51. https://doi.org/10.63561/jacsr.v2i4.1019