慶應義塾大学 | Keio University / 慶應義塾大学
【研究内容】Assessment of the effect of chemical composition on the different charging states of atmospheric particles
In recent years, a variety of environmental impacts have become problematic due to particulate matter in the atmosphere. Particulate matter scatters and absorbs sunlight, promotes cloud nucleation, and influences global climate change. In addition to environmental problems, there is also concern about the health effects of particulate matter. Smaller particles are more likely to penetrate deeper into the respiratory system. Recent studies have shown that even particles with the same chemical composition and particle size have different deposition rates in the respiratory tract if they are in different charged states. Therefore, the purpose of this study is to evaluate the effect of chemical composition on the different charging states of atmospheric particles by measuring the chemical composition of environmental atmospheric aerosols using a device that separates atmospheric particles according to their charging state.