1. State Environmental Protection Key Laboratory of Formation and Prevention of the Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China
2. Department of Environment Science and Engineering, Fudan University, Shanghai 200433, China
3. Atmospheric Chemistry Observation & Modeling Laboratory (ACOM), National Center for Atmospheric Research (NCAR), Boulder, Colorado 80301, United States
4. School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China