The physical and chemical processes of formation, emission, transport and transformation of atmospheric pollutants including acid substances, regional haze, Asian dust, biomass burning and atmospheric mercury in Asian region are very complicated, resulting in impact on regional environment and climate. Taiwan is also influenced by such impact in direct and indirect ways. Therefore, this proposed study Phase V (2015/8-2018/7) will continue legacy of the Phases I (2003/8-2006/7), II (2006/8-2009/7), III (2009/8-2012/7) and IV (2012/8-2015/7), and further to integrate ground-based measurements, remote sensing observation, climatic dynamic analysis, and model simulation in order to analyze the physiochemical processes during the long-range transport of above atmospheric pollutants, and further to assess their impact on regional climate.