Urban Runoff Pollutes Waterways, Threatens Public Health and Environment
The study looked at pollution in urban runoff in Xinxiang City. They analyzed samples for SS, COD, and TN levels. Results showed SS and COD stayed steady in runoff, while TN decreased then rebounded. SS had the highest variability. The initial runoff is most polluted, and SS and COD are the main pollutants. Urban runoff affects water quality in receiving waters, especially SS and COD.