Despite extensive efforts to characterize organic nitrogen(ON)in atmospheric aerosols,knowledge of the sources and processes of ON in the megacity of Beijing is still limited,mainly due to the complex
Cooking organic aerosol(COA)constitutes a considerable fraction of organic aerosol(OA)in urban environments [1-2],yet it is often challenging to resolve COA in summer through positive matrix factoriza
The light absorption enhancement(Eabs)of black carbon(BC)caused by non-BC materials is an important source of uncertainty in radiative forcing estimate,yet remains poorly understood in relatively poll