Urban Air Quality as a Coupled Transport-Health-Equity System

This interdisciplinary review examines urban air quality as a coupled transport, health, and equity system. The organizing question is which interventions reduce population exposure rather than merely relocate monitored emissions. Ten related scholarly sources are synthesized through a decision-centered framework spanning problem definition, mechanism, measurement, evaluation, implementation, and governance. The review does not invent experiments, pooled estimates, or unreported quantitative results. It instead evaluates the strength and transferability of the available evidence, with particular attention to using citywide concentration averages to infer equitable health benefit. The resulting framework links technical or empirical performance to explicit use conditions and identifies tests that should precede wider adoption in clean-mobility and urban-health policy.

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