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
- Xiaojie Zhou, Majid Khan Majahar Ali, Farah Aini Abdullah, Lili Wu, Ying Tian, Tao Li, Kaihui Li, Air quality prediction enhanced by a CNN-LSTM-Attention model optimized with an advanced dung beetle algorithm , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 3, August 2025
- E. P. Onokare, L. O. Odokuma, F. D. Sikoki, B. M. Nziwu, P. O. Iniaghe, J. C. Ossai, Physicochemical Characteristics and Toxicity Studies of Crude Oil, Dispersant and Crude Oil-Dispersant Test Media to Marine Organisms , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 1, February 2022
- A. S. Akingboye, Geohydraulic characteristics and groundwater vulnerability assessment of tropically weathered and fractured gneissic aquifers using combined georesistivity and geostatistical methods , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- A. E. Ajetunmobi, A. O. Musthapha, I. C. Okeyode, A. M. Gbadebo, D. Al-Azmi, T. W. David, Assessing the need for radiation protection measures in artisanal and small scale mining of tantalite in Oke-Ogun, Oyo State, Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 3, August 2022
- Sunday Sani Daku, Ogbonnaya Igwe, Characterization of mine spoils for the reclamation of degraded lands of the Jos-Bukuru tin field, central Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- C. A. Oyelami, W. Akande, T. O. Kolawole, A Preliminary Geotechnical Assessment of Residual Tropical Soils around Osogbo Metropolis as Materials for Road Subgrade , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 2, May 2022
- K. O. Sodeinde, S. O. Olusanya, D. U. Momodu, V. F. Enogheghase, O. S. Lawal, Waste glass: An excellent adsorbent for crystal violet dye, Pb2+ and Cd2+ heavy metals ions decontamination from wastewater , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 4, November 2021
- Ogheneovo Akpoyibo, Ezekiel Onoriode Abriku, F. C. Ugbe, Ochuko Anomohanran, Geophysical and geotechnical assessment of Obiaruku-Agbor road failure in Western Niger-Delta, Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 1, February 2025
- S. A. Adesokan, A. A. Giwa, I. A. Bello, Environmental, Health and Economic Implications of Emerging Contaminants in Nigeria Environment , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 3, August 2022
- O. T. Fatunsin, O. F. Adeyeye, K. O. Olayinka, T. O. Oluseyi, Effect of pH on the Leaching of Potentially Toxic Metals from Different Types of Used Cooking Pots , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
You may also start an advanced similarity search for this article.

