A new statistical modeling and optimization framework for establishing high-resolution PM10 emission inventory - I. Stepwise regression model development and application

► A regression method is proposed to develop a county-level PM10 emission inventory. ► The method does not require a detailed data investigation. ► The results indicated that the new method had relatively satisfactory performance. ► Modeling errors of case study at regional and county levels were 17.0% and 30.4%.