Abstract:In view of the severe situation of air pollution and the difficulties in its prevention and control, it is particularly important to analyze the human and natural factors affecting air pollution. Based on the panel data of 43 cities in Beijing-Tianjin-Hebei, Yangtze River Delta and Pearl River Delta, the spatial effects and influencing factors of atmospheric pollution in three urban agglomerations are analyzed by using spatial autocorrelation analysis and spatial lag model and spatial error model based on STIRPAT model. The results show that the air pollution of the three metropolitan agglomerations is caused by both human and natural factors; there are obvious spatial correlation and spillover effects in the air pollution of each region over the years; and there are great differences in the key influencing factors of the air pollution of the three metropolitan agglomerations. Based on the above conclusions, the corresponding policy suggestions for improving the ecological environment of urban agglomerations are put forward to fundamentally strengthen pollution prevention and control, and accelerate the construction of world-class urban agglomerations with excellent environment, green and low carbon.