Functional-Area-Based Spatial Variability and Source Apportionment of Urban Rainfall Runoff Pollution: Implications for Sustainable Water Management and Urban Resilience in China
Rainfall–runoff pollution poses a major challenge to urban water quality management, particularly in rapidly developing regions. However, its spatial variability and source characteristics remain inadequately understood. This study investigates the types, concentrations, and sources of pollutants in rainfall runoff acr...