Aerosol pollution refers to the presence of particles, such as soot, dust, and ash, in the atmosphere that can have negative effects on both human health and the environment. These particles can be emitted from a variety of sources, including vehicle exhaust, industrial processes, and wildfires. Aerosol pollution is a major concern because these particles can be inhaled, leading to respiratory problems and other health issues. Additionally, aerosols can affect climate and weather patterns by absorbing or reflecting sunlight, which can contribute to global warming and impact air quality. Researchers study aerosol pollution to better understand its sources, effects, and ways to mitigate its impact on human health and the environment.