Fan, Chengmeizi. “Status and Risk Assessment of Heavy Metal Pollution in Farmland Soil in the Southern Suburbs of Jiaozuo City”. International Journal of Natural Resources and Environmental Studies 2, no. 1 (April 6, 2024): 172–179. Accessed April 18, 2026. https://wepub.org/index.php/IJNRES/article/view/1229.