随着我国城市化快速发展,新旧城区不同排水系统的交错,污水和雨水管道混接现象普遍存在,大量污染物由地表暴雨径流排入水体,加剧城市水体的污染。由面源污染引起的水环境问题 With the rapid development of urbanization in our country, the stagnation of different drainage systems in old and new urban areas, the common mixing of sewage and rainwater pipelines, and the large amount of pollutants discharged into the water bodies by surface storm runoff, aggravating the pollution of urban water bodies. Water Environment Problems Caused by Nonpoint Source Pollution