Backward trajectory, Cluster analysis, Concentration Weighted Trajectory, Potential sources identification, Regional transport, Synergistic effect
Atmospheric pollutant, Cheng-Yu Economic Circle, Spatial heterogeneity, Multi-meteorological parameters, Potential sources identification, Synergic control
Spatiotemporal heterogeneity, Bivariate spatial autocorrelation, Geographical detector model, Spatial distribution direction, Refined mitigation strategy