Concentrations of Selected Metals In Some Ready-To-Eat-Foods Consumed in Southern Nigeria: Estimation of Dietary Intakes and Target Hazard Quotients

Chukwujindu Maxwell Iwegbue, Sarah O Nwozo, Chukwudumebi L Overah, Francisca I Bassey, Godwin E Nwajei


Concentrations of selected metals (Cu, Cd, Ni, Pb, Mn, Fe, Zn, Cr and Co) in some ready-to-eat-foods consumed in Nigeria were investigated with a view providing information on the risk associated with the consumption of these products. The concentrations of metals ( in these ready-to-eat-foods are in the ranges of 2.4 – 5.2 for Cu; 0.1– 0.8 for Cd; 0.7 – 4.0 for Ni; 8.1 – 53.7 for Fe; 8.9 – 20.0 for Zn; 0.1 – 3.8 for Pb; 5.1 – 14.4 for Mn; 0.83 – 21.4 for Cr and 0.20 – 1.32 for Co. The concentrations and estimated intakes of Cd, Ni and Pb in some of these food types exceeded the permissible limits and tolerable daily intake respectively. The target hazard quotients (THQ) for the individual metals indicate levels of concern for Ni, Cd, and Co in some of the ready-to-eat-foods. The combined THQ values for the metals in the examined samples ranged from 1.7 to 10 with significant contributions from Cd, Ni and Co.


Metal ions; Dietary intake; Target hazard quotients; Ready-to-eat-foods; Nigeria

Full Text:



 Creative Commons License
This work is licensed under Creative Commons Attribution 4.0 International License

ISSN: 2148-127X

Turkish JAF Sci.Tech.

Turkish Journal of Agriculture - Food Science and Technology (TURJAF) is indexed by the following national and international scientific indexing services:





















Our Journals

Turkish Journal of Agriculture - Food Science and Technology

International Journal of Poultry - Ornamental Birds Science and Technology

Turkish Research Journal of Academic Social Science

Turkish Research Journal of Academic Technical Science

Turkish Research Journal of Academic Health and Medical Sciences

Our congresses

International Anatolian Agriculture, Food, Environment and Biology Congress (TARGID)

International Congress of the Turkish Journal of Agriculture - Food Science and Technology (TURJAF)

Our Youtube Channel


Our Books

Our Scientific Books

About Us

The Turkish Science and Technology Publishing (TURSTEP) is an online and open-access platform to publish recent research and articles of scholars worldwide. Founded in 2013 and based in Turkey, the TURSTEP as a platform for academics, educators, scholars, and students from Turkey and around the world, to connect with one another. The TURSTEP disseminates research that is proven or predicted to be of significant influence for the general public.


Contact Us

Please send all inquiries to the email:

Business Adress

Eğriköprü mh. Pilot Kaya İstektepe Cad. 9/1 BLOK Daire 7, 58050 Merkaz/Sivas, Turkey