Key Laboratory of Coal Clean Conuersion and Chemical Engineering Process;
Xinjiang Uyghur Autonomous Region;
Xinjiang University;
Urumqi 830046;
China;
State Key Laboratory of Organic Geochemistry;
Guangzhou Institute of Geochemistry Chinese Academy of Sciences;
Guangzhou 510640;
China;
Guangdong-Hong Kong-Macao Joint Laboratory for Enuironmental Pollution and Control;
Guangzhou 510640;
China;
Aerosol chemical composition; Visibility; IMPROVE; Light extinction; Source apportionment; South of Urumqi;