Geography and sustainability, Journal Year: 2023, Volume and Issue: 4(4), P. 379 - 390

Published: Sept. 21, 2023

Inappropriate management of municipal solid waste dumpsites is a major cause groundwater contamination in developing countries, but the extent problem not known. This study investigated quality vicinity Olusosun dumpsite Lagos, Nigeria, most populous city sub-Saharan Africa. During 2020, monthly samples were collected 17 wells and boreholes used as drinking water sources, analysed for 20 physico-chemical parameters. Differences between sites seasons statistically assessed, together with changes index (WQI). The results indicated that heavy metals (Pb2+, Ni+, Mn2+, Fe2+, Cr6+), cations (Ca2+, Mg2+, K+), total hardness pH main parameters impairing quality. Drinking standards from both World Health Organization Nigeria government exceeded more often wet than dry season. Some properties negatively correlated distance to (e.g., Fe, Pb2+, NO3−). Significant differences identified, no clear spatial trend. WQI varied excellent (6%–24% over period) unsuitable purposes (12%–18%), good prevailing at (35%–47%). Although declined 24% during improvements compared previous decades. Remediation strategies must be implemented safeguard public health sustainability resources.

Language: Английский