Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters;
Nanjing University of Information Science&Technology;
Nanjing 210044;
China;
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration;
Nanjing University of Information Science&Technology;
Nanjing 210044;
China;
Water soluble ions; Mount Tai; Ionic binding; PCA; Backward trajectories;