Levels of Zinc (Zn), Copper (Cu), Iron (Fe), and Cadmium (Cd) in Soil, Rice Stalk, and Oryza Sativa Grain in Ishiagu Rice Field, Ebonyi State, Nigeria; Human Health Risk. J. Nig. Soc. Phys. Sci. [Internet]. 2022 Sep. 25 [cited 2024 May 5];4(4):891. Available from: https://www.journal.nsps.org.ng/index.php/jnsps/article/view/891