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Appraisal of Some Heavy Metals and Elements in Irrigated Vegetables and Fruit Cultivated in College Farm, Maiduguri, Nigeria
International Journal of Applied Agricultural Sciences
Volume 3, Issue 3, May 2017, Pages: 78-86
Received: Dec. 16, 2015; Accepted: Feb. 8, 2016; Published: May 29, 2017
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Gwana Adamu Mohammed, Laboratory Unit, A. H. P Department, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria
Bassey Effong Edet, Department of Microbiology and Brewery, Nnamdi Azikwe University, Awka, Nigeria
Hauwa Lawan Badawi, Heritage Unit, Department of Heritage and Museum Sites, National Commission for Museums and Monuments, Maiduguri, Nigeria
Halima Mohammed Bala, Department of Basic Science, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria
Mustapha Umar Marte, Department of Animal Health and Production Technology, Mohamet Lawan College of Agriculture, Maiduguri, Nigeria
Ali Mohammed, Department of Veterinary Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
Laku Dauda, Department of Veterinary Surgery and Theriogenology, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Nigeria
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This study was conducted to determine concentration levels of heavy metals and element in irrigated leafy vegetables and fruit cultivated at colleges’ farm along river Kumodu Gana bank, Maiduguri. Samples were obtained randomly from five locations and analysed as described by AOAC, (1990). Cadmium, copper, iron, potassium, manganese, nickel, lead and zinc were determined in plant parts of spinach (Amaranthus blitum), jute wallow (Corchurus tridents), roselle (Habiscus sabdariffa variety), and fruits of pepper (Capsicum species). The results revealed mean concentration level of each element determined in the vegetable plants studied; for cadmium had 0.80 - 3.21 µg/g, copper (0.38 - 1.58 µg/g), iron (0.27 - 1.89 µg/g), potassium (6.6 - 27.13 µg/g), manganese (0.26 - 2.42 µg/g), nickel (0.23 - 4.21 µg/g), lead (0.32 µg/g), and 0.13 - 0.74 µg/g for zinc. The magnitude of concentration levels of these elements detected in different irrigated vegetable plant parts materials’ sequential order was K > Ni > Cd > Mn > Fe > Cu > Zn > Pb, the highest was potassium (K), the least was lead (Pb) and Pb was detected in roselle (Habiscus sabdariffa variety) only. No significance differences between the plant parts when compared their concentration levels in term of the elements determined. Their concentrations are below the recommended safe limit proposed by AOAC, EU, FAO and WHO. Hence, irrigated vegetables cultivated in the studied area were found fit, wholesome for consumption and health risk free. Further studies on the same irrigated vegetables and area are recommended.
Elements, Irrigated Vegetables, Metals, Mean Concentration, River Kumodu Gana, Safe Limit
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Gwana Adamu Mohammed, Bassey Effong Edet, Hauwa Lawan Badawi, Halima Mohammed Bala, Mustapha Umar Marte, Ali Mohammed, Laku Dauda, Appraisal of Some Heavy Metals and Elements in Irrigated Vegetables and Fruit Cultivated in College Farm, Maiduguri, Nigeria, International Journal of Applied Agricultural Sciences. Vol. 3, No. 3, 2017, pp. 78-86. doi: 10.11648/j.ijaas.20170303.14
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