Physico-chemical analysis and identification of antibiotics resistant Enterobacteriaceae from groundwater sources in Ayobo, Lagos, Nigeria
No Thumbnail Available
Date
2023-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
International Research Journal of Environmental Sciences
Abstract
This study aimed at evaluating the physico-chemical parameters and detection of Enterobacteriaceae of groundwater
samples in Ayobo, Lagos State. The physico-chemical and bacteriological parameters were determined using standard
methods. Twenty Groundwater samples were selectively collected over a period of 6 weeks from two groundwater stations
which were Anchor University and Ayobo community. Groundwater temperature values from both well and borehole ranged
from 23.9-27.5°C, with an average value of 24.9°C. Conductivity and TDS had their highest values (99.1μS and 49.3ppm)
recorded in well 1 of station 1 while in station 2, the result of the selected physico-chemical water quality parameter revealed
that the temperature of groundwater samples ranged from 25.1oC to 26.5oC. pH range from 5.0-7.0 with the highest value
(7.0) recorded in sample BOK 1 and BOK 2. Conductivity recorded the highest value of 60.9μS while TDS had the highest
value of 63.8ppm. Total mean counts for total viable count, faecal coliforms and total coliforms for Station 1 were as follow:
225.00±7.07CFU/ml, 167.00±4.25CFU/ml and 131per 100ml respectively; and for Station 2: 137.00±1.41CFU/ml,
102.00±1.41CFU/ml and 250 per 100ml respectively, which are all higher than the WHO standard limits. The result of the
antibiotics susceptibility profiling revealed that the isolates were resistant to more than three antibiotics. In conclusion, this
study showed that borehole water and well water around Ayobo are not safe for direct consumption due to high level of the
quality indicator bacteria in them.