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27. EVALUATION OF TOXIC ELEMENTS CONTENTS IN INFANT FOODS COMMERCIALLY AVAILABLE IN GOMBE TOWN, NIGERIA by Hankouraou Seydou and Sarah Billah Marga Volume 52 (July & Sept., 2019 Issue)
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EVALUATION OF TOXIC ELEMENTS CONTENTS IN INFANT FOODS

COMMERCIALLY AVAILABLE IN GOMBE TOWN, NIGERIA

Hankouraou Seydou and Sarah Billah Marga

Department of Physics, Gombe State University, Gombe, Nigeria

Abstract

Heavy metal contamination is a critical phenomenon of environmental concern nowadays. The tremendous human activities are subjecting the environment to changes susceptible of causing health hazards to human in general and infant in particular. This study was aimed at analyzing heavy metals in some selected infant food formula in Gombe Town. The infant samples were five different infant food formulas obtained from Gombe market. The sample were digested using hydrochloric (HCl) acid and nitric (HNO3) in the ratio of 5:1 and analyzed using Atomic absorption spectrophotometer (ASS) for determination of heavy metals concentrations. The mean concentrations obtained were compared with the maximum tolerable values reported by WHO. Lead was not detected in all the samples. The heavy metal concentration levels was found to be within safe limit except for copper (0.100 to 0.400 mg/kg), nickel (0.100 to 4.500 mg/kg) and Magnesium (18.600 to 31.700 mg/kg).Sample B and D give values above WHO for Cu. Sample A, B, D and E give values above WHO for Ni. Samples, A, B, C, D and E give values above WHO for Mg. The higher concentration may be due to the environmental mismanagement such as improper disposal of electronic waste and application of agricultural chemicals such as fertilizers, pesticides and herbicides. All samples showed lower intake values when compared with the WHO values with exception of Cd which gave values ranging from 0.01 to 0.09 mg/day while the recommended value is zero.

Keywords: Atomic Absorption Spectroscopy, Heavy metals, Infant Food Formula, Daily Intake and Gombe Town, Nigeria.

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