Abstract
In this research work, there was analysis of the levels of heavy metals and antibioticsensitivity of bacteria present from waste dumpsites in Benin City, Edo state. Themethodology of this research involved the collection of samples in triplicates from randomdumpsites. The sites were Ekosodin, Oluku and Uselu all within Benin City metropolis. Also,standard pour plating method with dilution to 10-3 was done to isolate organisms present in the soil samples. Analysis of heavy metals level was done using flame Atomic AbsorptionSpectrophotometer. The results showed the concentration of heavy metal in all the samplesbetween 0.463 - 1.392, 0.030 – 0.070, 1.681 - 2.851, 0.685 – 1.386 and 0.342 – 0.422 allin ppm for Lead, Cadmium, Iron, Zinc and Copper respectively. The total heterotrophicbacterial count of all the samples ranged from 1.1×104 cfu/g to 3.4×104cfu/g. The bacterialisolated include Bacillussubtilis, Arthrobacter sp., Pseudomona saeruginosa, Escherichiacoli, and Proteus sp. The isolates exhibited resistance to a wide range of antibiotics namelyTarivid, Gentamycin and Ciprofloxacin, and sensitivity to Amoxicillin, Rocephin, Augmentinand Ampiclox. The organisms with antibiotic and heavy metal resistance isolated andidentified in this study have potential application in bioremediation of environments polluted with metals and may also help to overcome the inhibition that heavy metals exert on the biodegradation of organic pollutants.
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Schedule a callMore From: Nigerian Journal of Life Sciences (ISSN: 2276-7029)
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