African Journal of
Food Science

  • Abbreviation: Afr. J. Food Sci.
  • Language: English
  • ISSN: 1996-0794
  • DOI: 10.5897/AJFS
  • Start Year: 2007
  • Published Articles: 817

Full Length Research Paper

Heavy metal levels of some fruits and leafy vegetables from selected markets in Lagos, Nigeria

O. P. Sobukola*, O. M. Adeniran, A. A. Odedairo and O. E. Kajihausa
Department of Food Science and Technology, University of Agriculture, P. M. B. 2240, Abeokuta, Nigeria.
Email: [email protected]

  • Article Number - 0DDC12624793
  • Vol.4(6), pp. 389 - 393, June 2010
  •  Accepted: 17 December 2009
  •  Published: 30 June 2010

Abstract

 

Heavy metal levels in sixteen different fruits and leafy vegetables from selected markets in Lagos, Nigeria were determined using atomic absorption spectrometry. The results showed that the levels of Lead, Cadmium, Copper, Zinc, Cobalt and Nickel ranged from 0.072±0.06 to 0.128±0.03; 0.003±0.01 to 0.005±0.01; 0.002±0.00 to 0.015±0.02; 0.039±0.01 to 0.082±0.01; 0.014±0.01 to 0.026±0.01 and 0.070±0.07 to 0.137±0.05 mg/kg, respectively, for the fruits. The levels of Lead, Cadmium, Copper, Zinc, Cobalt and Nickel for the leafy vegetables respectively ranged from 0.09±0.01 to 0.21±0.06; 0.03±0.01 to 0.09±0.00; 0.02±0.00 to 0.07±0.00; 0.01±0.00 to 0.10±0.00; 0.02±0.00 to 0.36±0.00 and 0.05±0.04 to 0.24±0.01 mg/kg. Values obtained are comparable with those available in the literature and within tolerable limits of some regulatory authorities.

 

Key words: Fruits, leafy vegetables, heavy metals, atomic absorption spectrometry.

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