Abstract: Controlling the total discharge quantity of pollution is to determine the river channel’s ability for containing contaminator, and to assign the amount of pollution permitted to emit to basin. The authors select one-dimensional water quality model to carry through the simulation of water environmental conditions, and then calculates water environmental capacity of Hunhe area of Shenyang. At the same time, according to the pollution load ratio of each pollution outlets and branch mouth separately in the function area, the main pollutant emission amount and the reduction quantity are determined.

Key words: quality model, water environmental capacity, pollution outlet, total amount control of pollution