Health Risk Assessment of Heavy Metals via Dietary Intake of Vegetables Grown in an Irrigated Farm around Dadin-Kowa, Gombe State

Authors

  • F. U. Muhammad Yelwan Tudu Bauchi, Opp. Customs Barrack, Along Dass Road, Bauchi State, Nigeria
  • H. M. Adamu Department of Chemistry, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria
  • D. T. Gungula Department of Crop Production and Horticulture, Modibbo Adama University of Technology, Yola, Adamawa State, Nigeria
  • J. Kapsiya, Horticultural Department, Federal College of Horticulture, Dadin Kowa, Gombe State, Nigeria
  • A. Ahmad Horticultural Department, Federal College of Horticulture, Dadin Kowa, Gombe State, Nigeria
  • A. H. Idris Department of Chemistry, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria

Keywords:

Vegetables, Soil, Irrigation Water, Heavy Metals, ; Dietary Intake

Abstract

The present study was carried out to assess health risk via dietary intake of different levels heavy metals like Cadmium (Cd), Chromium (Cr), Copper (Cu), Iron (Fe), Manganese (Mn), Lead (Pb) and Zinc (Zn) in some selected soil, water and vegetables grown in an irrigated farm of Dadin Kowa, Gombe State, North-East, Nigeria. They were determined using Atomic Absorption
Spectrophotometry (AAS). Heavy metals concentration was found much less in irrigated water as compared to soil and vegetables. Although, the concentration value of these metals were below the maximum tolerable levels by FAO/WHO Cadmium (Cd) 25 mg/Kg, was found to be at toxic level. The levels found in vegetables were in order Cr > Fe > Zn > Cu > Cd > Pb > Mn. The levels found in irrigation water were in order Cu > Zn > Pb > Fe > Cd > Mn > Cr. The mean concentration values of the metals in the soil were 20, 16.5, 33, 21.7, 4.5, 15.8 and 20 mg/Kg for Cadmium (Cd), Chromium (Cr), Copper (Cu), Iron (Fe), Manganese (Mn), Lead (Pb) and Zinc (Zn) respectively. This means Cu > Fe > Zn > Cd > Cr > Pb > Mn. However, the regular monitoring of levels of these metals in vegetables and in other food materials is essential to prevent excessive build-up of these metals in the food around the study area

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Published

2021-12-31

Issue

Vol. 6 No. 1-2 (2021)

Section

Articles