Heavy Metals Concentration Levels in Vegetables Irrigated From Lake Geriyo Area of Adamawa State, Nigeria
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 7, Issue 4
Abstract
The persistence and generation of toxic metals in our environment and its subsequent transfer from sources into soil, farm lands, water and food crops have remain a great challenge in most developing countries of the world. Heavy metal concentration levels in irrigated vegetables from Geriyo farm sites were examined using Buck Scientific atomic absorption Spectrophotometer (AAS) VGP 210 Model. The mean concentration levels of Fe 335.0 mg/kg, Zn 335.2mg/kg, Mn 44.2mg/kg and Cu 74.1mg/kg were on the higher side, but below the safe limit of FAO/WHO standard except for Cu. The mean concentration levels of the most toxic metals, Cd, Cr and Pb with values of 0.42, 0.34, 0.32, 9.80, 6.20, 5.80, 5.40mg/kg and 9.12, 6.20, 4.40 and 2.61mg/kg were alarmingly above the safe limit of 0.2, and 0.3mg/kg Standard in Cabbage, lettuce, amaranthus and tomatoes of this farm site. The studied vegetables have accumulated these toxic metals in their edible leaves to a higher level. The consumers of vegetables grown from this site in the long run may suffers the health risk of body organs like kidney, liver, lungs and spleen. Public enlightenment and education about the risk and the need to control environmental pollution, food chain transfer of toxic metal via vegetables consumption and the health risk index estimation is recommended.
Authors and Affiliations
Hong A. H, UMARU. A. B
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