Atmospheric chemistry is the study of what goes into our atmosphere and how it affects our environment. It looks at how the different gases, pollution, and particles that are in the air interact with one another. For example, when people burn oil or coal, the smoke that goes up in the air can mix with other gases to form air pollution. This air pollution can make our skies cloudy and hazy, and it can even make people sick. Atmospheric chemists study these different interactions and look for ways to reduce the amount of air pollution so that our air is cleaner and safer.