College of Geophysics;
Chengdu University of Technology;
Chengdu 610059;
China;
College of Engineering and Technology;
Chengdu University of Technology;
Leshan 614007;
China;
Geomathematics Key Laboratory of Sichuan Province;
Chengdu University of Technology;
Chengdu 610059;
China;
College of Management Science;
Chengdu University of Technology;
Chengdu 610059;
China;
College of Earth Sciences;
Chengdu University of Technology;
Chengdu 610059;
China;
College of Architecture and Environment;
Sichuan University;
Chengdu 610000;
China;
National Institute of Measurement and Testing Technology;
Chengdu 610000;
China;
Atmospheric pollution; formation of haze; aerosol subtypes; backward trajectories; Sichuan Basin;