1. Environment Research Institute, Shandong University, Jinan, Shandong 250100, China.
2. Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
3. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
4. Faculty of Environmental and Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto 862-8502, Japan.
5. Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
6. School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, U.K.
7. Department of Environmental Sciences, Center of Excellence in Environmental Studies, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia.
8. Key Laboratory of Atmospheric Chemistry, Chinese Academy of Meteorological Sciences, Beijing, China.
9. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100086, China.
10. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China.
11. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.
12. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
13. Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras GR-26504, Greece.
14. Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Palea-Pendeli GR-15236, Greece.