Assessment of Trace Metal Contaminations in Vegetables Around Riparian Area of Ogbomoso



Different types of waste consisting of everyday items from different sources that are discarded by the public are commonly disposed at the bank of a river in which vegetables are planted. The vegetables planted are assumed to be polluted with some heavy metals as a result of municipal waste. These heavy metals accumulate in the body and enter through the food. The heavy metals sometimes are so much in the body that they pose a great hazard to human body. Four heavy metals Lead (Pb), Chromium, (Cr), Cadmium (Cd), and Zinc (Zn) were studied in comparison with FAO/WHO standard.The research was carried out in Ogbomoso at three different locations Arada, Ikose and Beulah. Vegetables sample were uprooted at the river bank of these locations at three varying distances (10m, 15m and 20m) away from the river. The vegetables samples were kept in a labeled brown envelopes and oven dried for 48 hours at 23oC to remove moisture. The dried samples were then taken to the Institute of Agricultural Research and Training at Ibadan for analysis.The results showed that the level of concentration of Pb, Cr, Cd and Zn found in the vegetable planted in riparian area of Ogbomoso are safe for human consumption because the metals found were in conformation with FAO/WHO standard.

DOI: 10.7176/JBAH/9-18-05

Publication date:September 30th 2019

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ISSN (Paper)2224-3208 ISSN (Online)2225-093X

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