Microbial Components And Groundwater Quality In Lagos West Senatorial District, Lagos State, Nigeria

Abstract

Water is a vital resource essential for health, agriculture, and industry. Groundwater, comprising about 30% of the world's freshwater, is a primary drinking water source for many communities. However, its quality is often compromised by contaminants, including microbial pathogens, which pose significant public health risks. This study focuses on groundwater quality in Lagos West Senatorial District, Nigeria, where rapid urbanization and industrialization have intensified water contamination issues. Despite its critical role, the microbial quality of groundwater in this densely populated area has been inadequately studied. The research employed an experimental design, collecting water samples from 40 wells during both the dry (February) and wet (June) seasons of 2023. The samples were analyzed using various agars, including Nutrient Agar (NA), MacConkey Agar (MAC), Thiosulfate-Citrate-Bile-Salt-Sucrose (TCBS) Agar, and Salmonella Shigella (SS) Agar, to detect microbial contaminants. Results indicated significant microbial contamination, with varying levels of contamination across different agars and seasons. For instance, Nutrient Agar results showed high microbial counts, with too numerous to count (TNC) instances exceeding recommended limits. Similarly, contamination levels for MacConkey Agar and TCBS Agar also surpassed acceptable thresholds. The study highlights the prevalent microbial contamination in groundwater sources, posing serious health risks such as cholera and typhoid fever.The findings underscore the urgent need for improved water management and sanitation practices in Lagos West Senatorial District. Recommendations include enhancing waste management, regular water quality monitoring, and implementing advanced water treatment technologies to safeguard public health and ensure safe drinking water.