Waste Dumpsites Case Study

1989 Words 8 Pages
Bacterial community of some waste dumpsites in Lagos, Nigeria Moro, D.D.1, Bello, H.A.2 and Akano, S.O.3

1. Department of Microbiology, Lagos State University, Ojo, Lagos State, Nigeria.
2. Department of Science Technology,Gateway Polytechnic, Igbesa, Ogun State, Nigeria.
3. Department of Medical Microbiology, Olabisi Onabanjo University, Sagamu, Ogun State, Nigeria.

Bacteriological analysis of 120 soil samples from dumpsites in Ojo, Lagos, with standard microbiological techniques revealed the total viable aerobic bacterial count as 2.19 x107 cfu/mg soil on eosin methylene blue( EMB) agar and 5.12 x 108 cfu/mg soil on MacConkey (MCC ) agar, indicating that the bacterial count is higher on MCC than on EMB. The bacterial isolates and their frequency of isolation from dumpsites were Escherichia coli (33.3%), Klebsiella spp.(16.7%) ,Pseudomonas spp. (13.3%), Proteus spp.(10%), Streptococcus spp. (8.3%), Salmonella spp. (6.7%), Staphylococcus aureus (6.7%) and Enterobacter spp. (5.0%). The high presence of pathogenic bacteria from dumpsites is of serious public health concern and highly significant. Antibiotic susceptibility testing using the disc diffusion
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E .coli is a pathogenic bacterium that can contaminate food and water through houseflies that carry them from the refuse dumps (Jay, 1996; Adeyeba and Okpala, 2000). E. coli strains involved in food –bone illness can be placed into five groups: Enteropathogenic (EPEC), Enterotoxigenic (ETEC). Enteroinvassive (EIEC), Enterohaemorrhagic (EHEC) and Facultatively Enteropathogenic ( FEEC ). The last strains (FEEC) are associated with sporadic diarrhea outbreak (Jay,

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