1. Department of Atmospheric Sciences, National Central University, Jhongli 320, Taiwan
2. Faculty of Environment, University of Science, Ho Chi Minh City 700000, Vietnam
3. Vietnam National University, Ho Chi Minh City 700000, Vietnam
4. Faculty of Electronics Engineering, Posts and Telecommunications Institute of Technology, Ho Chi Minh City 700000, Vietnam
5. Center for Environmental Monitoring and Technology, National Central University, Jhongli 320, Taiwan
6. Environmental Protection Administration, Taipei 10042, Taiwan