Water Environment Polloution of Mangxi River of Leshan City and the Countermeasures

In this paper introductions are conducted to Mangxi River of Leshan city,Sichuan Province,and analysis and assessment on the present status of water environment pollution are carried out,meanwhile the main pollution source,the city living pollution,is found out,based on investigations.Water environmental capacity of Mangxi River is calculated and total amount control method of water pollution is put forward and in accordance with the actual conditions of pollution source of Mangxi River,some prevention measures are raised considering the different characteristics of the city living pollution source,surface and industrial pollution source.