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Published:
Dec 16, 2020DOI:
10.4314/ahs.v20i4.63Keywords:
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Main Article Content
Trace metal toxicity in some food items in three major markets in Ado-Odo/Ota LGA, Ogun State, Nigeria and associated health implications
Abstract
Background: Many of the markets in Nigeria are open, where foodstuffs are laid bare on flat trays and open baskets, direct- ly exposing them to environmental contaminants. This study aimed at determining whether some food items on sale around an industrialized area of Ogun State are contaminated with trace metals.
Methods: Seven different food items – Clarias gariepinus (roasted, fresh and smoked) Bos taurus (dried and fresh beef), zobo leaf (Hibiscus sabdariffa) and crayfish (Astacus leptodactylus) were sampled from three major markets, namely: Lusada, Atan and Ota in Ado-Odo/Ota LGA of Ogun State. They were analyzed for Lead, Cadmium, Nickel, Manganese and Zinc using Atomic Absorption Spectroscopy.
Results: Cd was not detected in most of the food items across the markets. Pb, Ni and Mn were detected in very high con- centrations above the maximum allowable limits by international regulatory agencies. Zn was the only metal that was gen- erally below regulatory limits in food items across the three markets. The Estimated Daily Intake (EDI) and Target Hazard Quotient (THQ) values were generally higher than values acceptable in food.
Conclusion: Some of the food items consumed in this area are not entirely safe from metal toxicity and this may have se- rious health consequences.
Keywords: Cadmium; food items; lead; Manganese; nickel; zinc.
