Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, 310058, China
Kang Hu
Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, 310058, China
Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science & Technology, Nanjing, 210044, China
Yangzhou Wu
Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, 310058, China
College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541006, China
The results provide direct evidence of efficient droplet activation of black carbon (BC). The cloud condensation nuclei (CCN) activation fraction of BC was higher than for all particles, suggesting higher CCN activity of BC, even though its hygroscopicity is lower. Our research reveals that the evolution of BC's hygroscopicity and its CCN activation properties through atmospheric aging can be effectively characterized by the photochemical age.
The results provide direct evidence of efficient droplet activation of black carbon (BC). The...