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Article Information:
Evaluation of Heavy Metals from Soil and Lettuce Grown in Irrigated Farmlands of Kaduna Metropolis Nigeria
W.L.O. Jimoh and Mahmud Imam Mohammed
Corresponding Author: Mahmud Imam Mohammed
Submitted: September 13, 2011
Accepted: October 15, 2011
Published: March 26, 2012 |
Abstract:
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The aim of this research study is to determine the level of heavy metal such as cadmium, copper and
lead were investigated in soil and lettuce grown in irrigated farmlands of Kaduna metropolis so as to ascertain
the extent of pollution. Concentrations of heavy metals were determined using atomic absorption
spectrophotometer. The results obtained were compared with limit recommended by FAO/WHO (2007)
Allimentarius standard so as to ascertain the extent of their pollution. The level of cadmium in lettuce ranged
from 0.03-1.37 μg/g. The concentrations of lead was found to be in range of 0.96-3.81 μg/g, were above the
limit stipulated by WHO while copper concentration ranged from 0.27-4.97 μg/g were within the recommended
limit given by the FAO/WHO (2007) standard. This suggests that the lettuce grown in the studied areas were
prone to lead and cadmium toxicity as at the time of this research work. Pearson correlation shows positive
correlation between soil and vegetable (lettuce) in these irrigation sites.
Key words: Atomic absorption spectrophotometer, heavy metals, Kaduna metropolis, lettuce, Nigeria, soil,
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Cite this Reference:
W.L.O. Jimoh and Mahmud Imam Mohammed, . Evaluation of Heavy Metals from Soil and Lettuce Grown in Irrigated Farmlands of Kaduna Metropolis Nigeria. Asian Journal of Agricultural Sciences, (2): 102-107.
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ISSN (Online): 2041-3890
ISSN (Print): 2041-3882 |
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