Aerosol research focuses on the study of fine solid or liquid particles suspended in a gas. These particles, known as aerosols, can have a variety of sources including natural phenomena like volcanic eruptions and forest fires, as well as human activities such as industrial processes and vehicle emissions. Aerosol research aims to understand the composition, behavior, and impacts of these particles on air quality, climate change, and human health. Scientists use a variety of techniques such as remote sensing, field measurements, and modeling to study aerosols and their effects on the environment.