DETERMINATIONS OF SOME HEAVY METALS IN VEGETABLES CULTIVATED IN SOME VILLAGES IN DAMBOA, NORTH – EASTERN NIGERIA

Authors

  • Halima Bala Mohammed Department of Basic Science and Technology, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria
  • Gwana Adamu Mohammed Laboratory Unit, Department of Animal Health and Production Technology, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria
  • Kolo, Baba Gana Department of Chemistry, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria
  • Hamra Abatcha Ahmed Department of Remedial Science, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria; Department of Chemistry, Faculty of Science, University of Maiduguri, Maiduguri, Nigeria
  • Kolo, Mu’azu Abdullahi Kofar Na’isa Department of Planning, Research and Development, Nigerian Institute of Science Laboratory Technology, Ibadan, Nigeria
  • Abubakar Aliyu Department of Forestry Technology, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria

DOI:

https://doi.org/10.29121/granthaalayah.v7.i11.2020.333

Keywords:

Concentration, Consumption, Edible Garden Plants, Food Security, Heavy Metals

Abstract [English]

With consideration to food hazards and its security, this research study was conducted to determine the concentration levels of some heavy metals in vegetables cultivated in Damboa, Nigeria. Fresh samples of vegetables; Cucumber (cucumis spp) and Onion (Allium cepa) were obtained from the farms in four villages, analysed by using Atomic Absorption Spectrophotometric (AAS) techniques. Results obtained showed variations in concentration in microgram per litre (µg / L). Eight heavy metals were determined; cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb) and zinc (Zn). The analysis revealed that; Gumsuri – Ritawa village; the concentration levels in cucumber ranged from - 0.7 ± 0.06 to 5.7 ± 0.06, while in onion ranged from 0.2 ± 0.06 to 4.8 ± 0.06; highest is Cd (5.7 µg / L) in cucumber.  Gumsuri – Tolori village, concentration in cucumber ranged from -6.6 ± 0.06 to 0.82 ± 0.02, in onion is 0.27 ± 0.01; highest is Pb (0.9 µg / L) found in onion. Katchalla - Bulari village; it ranged from -1.30 ± 0.06 to 2.71 ± 0.01 in cucumber, and onion is -0.90 ± 0.1 to 3.0 ± 0.1; highest is Ni (3 µg / L) in onion, and the lowest is Pb (- 1.3 µg / L) in cucumber. Nziddamari Village; in cucumber it ranged from -1.0 ± 0.06 to 2.16 ± 0.01 and onion ranged from -1.0 ± 0.06 to 5.0 ± 0.06; highest is Cd (5 µg / L) found in onion, lowest is Pb (- 1.2 µg / L) in cucumber respectively. Values obtained falls within the recommended standard values by WHO / FAO. Conclusively, these vegetables cultivated in Damboa area was found to be wholesome and fit for consumption as at the time of this analysis.

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Published

2019-11-30

How to Cite

Mohammed, H. B., Mohammed, G. A., Kolo, B. G., Ahmed, H. A., Kolo, M. A. K. N., & Aliyu, A. (2019). DETERMINATIONS OF SOME HEAVY METALS IN VEGETABLES CULTIVATED IN SOME VILLAGES IN DAMBOA, NORTH – EASTERN NIGERIA. International Journal of Research -GRANTHAALAYAH, 7(11), 57–70. https://doi.org/10.29121/granthaalayah.v7.i11.2020.333

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