QUALITY ASSESSMENT OF ABATTOIR EFFLUENTS FROM THE DISCHARGED POINT INTO A RECEIVING WATERSHED IN IKPOBA RIVER COMMUNITY: A POTENTIAL SOURCE OF MICROBIAL CONTAMINANT
Authors: *Igbinosa I.H, Kadiri R.A
Effluent discharges into receiving watershed and increasing adverse environmental problems have received a lot of attention because of the rapid industrialization of modern society. This study aims to ascertain the discharge of untreated abattoir effluents as a potential source of microbial contamination in the environment. Standard culture-dependent techniques with selective media were used for the detection of the bacterial pathogen. Escherichia coli O.157 were detected at 2.57×104±0.35 cfu/mL in location 1 and 5.00×103±0.33 cfu/mL at location 2 at the discharged point. Total coliform count was 2.90×103±0.44 cfu/mL; 5.56×103±0.61 cfu/mL upstream and 5.70×103±0.80 cfu/mL; 5.90×103±0.67 cfu/mL discharged point at sampling location 1 and 2 respectively. Also, Enterococcus count increased in the downstream from 4.73×104±0.42 cfu/mL to 8.40×104±1.28 cfu/mL at location 1, and a decreased was observed from 1.04×105±0.17 cfu/mL to 6.75×104±1.03 cfu/mL at location 2. In the study, the population density of Salmonella at the discharge point and downstream were 1.67×105±0.15 cfu/mL; 1.60×105±0.12 cfu/mL and 2.00×105±0.17 cfu/mL; 1.50×105±0.13 cfu/mL for location 1 and location 2 respectively. The detection of indicator organism in the abattoir effluent is of environmental and public health risk. Hence there is a need for continuous monitoring in order to improve standard environmental and public health safety in the community.
Affiliations: *Department of Environmental Management and Toxicology, Faculty of Life Sciences, University of Benin, PMB 1154, Benin City, Nigeria.
Keywords: Abattoir, Pollution, Pathogens, Health Risk, Waterborne Diseases
Published date: 2018/06/30