Research on Atmospheric Environmental Capacity model of Urban Agglomeration

The urban agglomeration is the area with industrial centralization, dense population and vehicles collecting, which is the heavily air polluted place but also the place with demand of hi-quality atmosphere. The only condition to assure the city clusters in sustainable development is that the economy and the environment shall be advanced in coordination, i.e. the economy shall be kept fast developing while the air quality shall satisfy the citizen's healthy existence and the biologic balance. The basic measure to realize such condition is to control the total amount of pollutants discharged not exceed the atmospheric environmental capacity(AEC),in short, implementing the capacity total quantity control(CTQC).so calculate the value of atmospheric environmental capacity is very important. On account that this thesis has considered comprehensively the relations among ambient air quality to come up to national ambient air quality standard(NAAQS), the investment for controlling the pollution and the loss by contamination hazard, an optimized atmospheric environmental capacity model is established with the bi-objective functions of least investment for controlling the pollution and loss by contamination hazard as well as the restricting condition is atmospheric environmental quality meet the NAAQS. Taking the northern urban agglomeration in Leshan City as an example we have calculated the actual SO2 atmospheric environmental capacity and provided an instance for the model's promotion of application.