Abstract:
Most of the water requirement for Lagos is met from surface and ground water supplies. Lagos an industrial and highly populated city located in the Southwest Nigeria has urban migration problems and resource limitations. However, as found in many cities, a certain proportion of the population is forced to rely on the well water as sources of drinking water, a poor drinking water quality that may have health consequences. A study was therefore carried out to gain an idea of the inorganic quality of the water in the wells penetrating the shallow (< 20 m thick) alluvial aquifer in the city. Results from this study revealed that some of the ground water quality constituents exceeded the World Health Organization (WHO) standards for drinking water irrespective of the sources of pollution: the total dissolved solids limit in 50%, the conductivity limit in 27.8%, the lead limit in 38.9%, the pH limit in 44.4% and the sodium and calcium limits in 11.1% of the samples. Thus, ground water from some of these wells requires further purification to ensure its fitness for human consumption.
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