1. Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
2. Department of Atmospheric Sciences, Texas A&M University, College Station, Texas 77843, United States
3. State Key Joint Laboratory of Environmental Simulation and Pollution Control, International Joint Laboratory for Regional Pollution Control, Ministry of Education (IJRC), College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
4. State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
5. College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, China
6. Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States