The surface layer of sediment and overlying water samples of Foshan Waterway,a typical municipal polluted river in Pearl River Delta,have been sampled and analyzed.

Samples of sediment,overlying water,pore water,and benthic invertebrate were collected at 13 stations along a typical municipal polluted river in the Pearl River Delta.

The problems of the polluted city rivers were introduced after stating the general situation of the polluted city rivers in the paper.

The Chinese urban runoff pollution status is introduced,and it is recognized as a main part of total pollutant control.

With the rapid development of the economy and urbanization process in China,city pollution is migrated and diffused with high polluted industries transfer and pollutants diffuse to its subject and rural areas,which leads to environmental deterioration in rural areas.

Characteristics of urban pollution under arid and semi-arid condition on the Loess Plateau in northwestern China:examples form a city in northwestern China;