Developing a Theory of Environmental Management Inequality in Nigerian Cities: Causes, Consequences, and Governance Responses

This dissertation develops an original theory of environmental management inequality in Nigerian cities, examining the social, spatial, and institutional mechanisms that produce and reproduce unequal environmental management service quality and environmental exposure across urban communities differentiated by income, ethnicity, and political access. Environmental inequality in Nigerian cities is visually apparent and widely experienced, with dramatic differences in waste collection quality, drainage maintenance, air pollution exposure, and access to parks and green spaces between wealthy and poor urban communities, but these inequalities have not been theoretically grounded in a systematic framework that identifies their causes and governance implications. The theoretical contribution draws on political economy, spatial sociology, urban governance theory, and environmental justice scholarship to construct a Nigerian Urban Environmental Management Inequality theory that identifies three primary mechanisms of inequality production: market allocation of environmental management services that systematically underserves communities without purchasing power; political capture of public environmental management resources by communities with better access to decision-making; and spatial path dependence in infrastructure investment that perpetuates historical patterns of environmental management advantage and disadvantage. Empirical development draws on a multi-city research programme in Lagos, Kano, and Port Harcourt, combining spatial analysis of environmental management service distribution and environmental exposure using satellite and monitoring data, household surveys with 900 residents across income strata in each city, and institutional analysis of environmental management budget allocation and decision-making processes. Original contributions include the three-mechanism theory, the Nigerian Urban Environmental Inequality Index, and a governance reform agenda derived from the theoretical analysis. Keywords: environmental inequality, urban governance, Nigerian cities, environmental justice, inequality theory.