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
Keywords:
Heavy metals, Rice, Soil, Health risk, Environmental pollutionAbstract
Levels of heavy metals (Zn, Cu, Fe, Cd) were determined in soil, rice grain, and rice stalk from Federal College of Agriculture Ishiagu rice field, Ebonyi state, Nigeria. The dried samples were digested with a 1: 3 (HNO3: HCl) mixture and analyzed with atomic absorption spectrophotometer (AAS). The mean concentration of the metals in the soil before planting, soil after harvest, and rice grain were as follows: Zn (7.28, 11.33 and 24.90); Cu (3.40,4.64 and 4.14); Fe (803.04, 735.47 and 107.78); Cd (1.14, ND and ND) and were all within FEPA and FAO/WHO limits. The daily intake values for a 60 kg adult were Zn (0.04), Cu (0.01), and Fe (0.18) and were all below the recommended limits by Codex Alimentarius standards. The Target Hazard Quotient (THQ) for Zn, Cu, and Fe was less than one (1<), and the total hazard index was less than 1, indicating that the population will not be exposed to the potential health risk from these metals. However, the metal levels should be monitored to ensure they stay at harmless levels.
Published
How to Cite
Issue
Section
Copyright (c) 2022 D. N. Ajah, E. Agboeze, J. N. Ihedioha, E. Chukwudi-Madu, C. C. Chime

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- Tertsea Igbawua, Martha Hembafan Gbanger, Fanan Ujoh, Suitability Analysis for Yam Production in Nigeria using Satellite and Observation Data , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- E. Omugbe, E. P. Inyang, A. Jahanshir, C. A. Onate, C. N. Isonguyo, E. S. Eyube, U. S. Okorie, R. Horchani, A. N. Ikot, Expectation values and Fisher information theoretic measures of heavy flavoured mesons , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 1, February 2025
- Nahid Salma, Majid Khan Majahar Ali, Raja Aqib Shamim, Machine learning-based feature selection for ultra-high-dimensional survival data: a computational approach , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 3, August 2025
- S. Ponsadai Lakshmi, R. Deepa, S. Ganapathy Sankari, M. Jeyachandran, Pollution Status of Groundwater Resources Through Hydrochemical Characteristics - A Case Study From Southern India , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- Sylvester J. Gemanam, Nursakinah Suardi, Barnabas A. Ikyo, Samson Damilola Oluwafemi, Terver Daniel, Samuel T. Kungur, Biostimulation Effects and Temperature Variation in Stimulated Dielectric Substance (Diabetic Blood Comparable to Non-Diabetic Blood) Based on the Specific Absorption Rate (SAR) in Laser Therapy , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 2, May 2021
- Raja Aqib Shamim, Majid Khan Majahar Ali, Mohamed Farouk Haashir bin Hamdullah, Computational optimization of auctioneer revenue in modified discrete Dutch auctions with cara risk preferences , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 1, February 2026
- A. E. Ibor, E. B. Edim, A. A. Ojugo, Secure Health Information System with Blockchain Technology , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 2, May 2023
- Edikan E. Akpanibah, Udeme O. Ini, An Investor’s Investment Plan with Stochastic Interest Rate under the CEV Model and the Ornstein-Uhlenbeck Process , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 3, August 2021
- K. M. Omatolaa, A. D. Onojah, A. N. Amah, I. Ahemen, Synthesis and characterization of silica xerogel and aerogel from rice husk ash and pulverized beach sand via sol-gel route , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 4, November 2023
- Bright O. Osu, K. N. C. Njoku, B. I. Oruh, On the Investment Strategy, Effect of Inflation and Impact of Hedging on Pension Wealth during Accumulation and Distribution Phases , Journal of the Nigerian Society of Physical Sciences: Volume 2, Issue 3, August 2020
You may also start an advanced similarity search for this article.

