What question did this study set out to answer?

Assess the impact of sewage treatment plants on the microbiological quality of water in urban slums.

March 2, 2026Open Access

Microbiological Stability Assessment of Water Quality in Urban Slums Affected by Sewage Treatment Plants in Lagos, Nigeria, 2000s

Key Points

Assess the impact of sewage treatment plants on the microbiological quality of water in urban slums.
Collected water samples from various slum locations in Lagos, Nigeria.
Analyzed microbiological parameters including total coliforms and E. coli using standard methods.
Monitored total coliform counts in affected areas to determine bacterial contamination.
Total coliform counts varied from 150 to 800 CFU/100mL in contaminated samples.
Significant bacterial contamination was detected, indicating compromised water safety.
Presence of sewage treatment plants contributed to the microbiological instability of water.

Abstract

Urban slums in Lagos, Nigeria, are frequently affected by inadequate sewage treatment leading to poor water quality. Water samples were collected from various slum locations, including those near STPs. Microbiological parameters such as total coliforms and E. coli were analysed using standard methods. Total coliform counts ranged between 150 to 800 CFU/100mL in samples from affected areas, indicating significant bacterial contamination. Microbial stability was compromised by the presence of STPs, posing potential health risks to residents. Enhanced monitoring and improved STP infrastructure are recommended to reduce microbiological hazards. The empirical specification follows Y=₀+^ X+, and inference is reported with uncertainty-aware statistical criteria.

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