State Key Joint Laboratory of Environment Simulation and Pollution Control;
School of Environment;
Tsinghua University;
Beijing 100084;
China;
State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex;
Beijing 100084;
China;
State Key Joint Laboratory of Environment Simulation and Pollution Control;
Department of Environmental Science;
Peking University;
Beijing 100871;
China;
Laboratory of Atmospheric Chemistry;
Paul Scherrer Institute;
5232 Villigen;
Switzerland;
Institute for Atmospheric and Earth System Research;
University of Helsinki;
Finland;