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VOL. 1, ISSUE 1 (2025)
Assessment of physicochemical and microbiological water quality parameters of Alulu River sin Enugu East Local Government Area
Authors
Okwesili L C
Abstract
This study evaluated the water quality of Alulu River in Enugu East
Local Government Area, with the aim of determining its suitability for
domestic, agricultural, and recreational purposes. Water samples were collected
from five strategic points along the river during both the dry and rainy
seasons. Key physicochemical parameters, including pH, temperature, turbidity,
dissolved oxygen, biochemical oxygen demand, and concentrations of nitrate,
phosphate, and heavy metals, were analyzed using standard laboratory methods.
Microbiological assessment was conducted to determine the presence and
abundance of total coliforms and Escherichia coli. Results indicated that the
pH ranged from 6.2 to 7.8, while dissolved oxygen levels varied between 4.2 and
6.8 mg/L. Turbidity and nutrient concentrations were generally higher during
the rainy season, reflecting surface runoff and anthropogenic activities.
Microbiological analysis revealed elevated levels of total coliforms (up to 180
CFU/100 mL) and E. coli (up to 95 CFU/100 mL) at sites near densely populated
areas, suggesting potential health risks for consumers. Heavy metal
concentrations, including lead and cadmium, were below national permissible
limits. Overall, the findings indicate that while the river can support certain
agricultural uses, its microbiological quality poses significant concerns for
direct human consumption without prior treatment. The study underscores the
need for regular monitoring, effective waste management practices, and public
awareness campaigns to ensure the sustainable utilization of Alulu River resources.
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Pages:18-23
How to cite this article:
Okwesili L C "Assessment of physicochemical and microbiological water quality parameters of Alulu River sin Enugu East Local Government Area". World Journal of Advanced Science, Vol 1, Issue 1, 2025, Pages 18-23
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