Look-up tables of main air pollutants were coupled in our self-developed regional air quality model system RegSRRMS.With the aid of the model,tropospheric air quality over the typical city cluster in China was studied,and the capacity of look-up table method to predict air pollution complex episodes was evaluated.Firstly,based on the state-of-the-art gas phase chemical modules and aerosol modules in WRF-CHEM,a new box model named WRFBOX was built.Secondly,the key physical and chemical factors that may affec...