China is a country which has different regions development and has distinct seasonal characteristic. The air pollution spilloverâ€™s characteristic in different regions and seasons have different feature. To analyze how to distinguish the regions of air pollution, we used complex network algorithm to discover the topological features of Chinese cities air pollution spillover system. We divided the cities which have synchronization to same region. Then we analyzed the air pollutionâ€™s spillover between regions in different seasons by motif algorithm. In this research, we divided the cities to different regions easy to control air pollution spillover between cities. After that we analyzed the air pollutionâ€™s spillover between regions and found that there is a core region in every season and different have different core regions. This region could influence most other regions in this season. Therefore, we could control air pollutionâ€™s spillover between regions by control the air pollution in core region.
Keywords Air pollution; regional spillover effect; motif; seasonal; complex network