Research on Pollutant Identification and Water Quality Change Patterns in Coal Mining Subsidence Areas with High Diving Level in Eastern China
This study analyzes three years of water quality data from 102 subsidence areas in Huainan's high water-table coal mining region to identify total phosphorus and nitrogen as primary pollutants, revealing seasonal eutrophication patterns driven by non-point sources in the flood season and point sources in the dry season, while utilizing isotope and statistical modeling to trace pollutant origins and inform differentiated management strategies.