1. School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
2. Renhezhihai Intelligent Technology (Shandong) Co., Ltd., Weifang 261000, China
3. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
4. Environment Research Institute, Shandong University, Qingdao 266237, China