Atmospheric transport refers to the movement of gases, particles, and other substances in the Earth's atmosphere. This research area focuses on understanding how pollutants, greenhouse gases, and other substances are transported through the atmosphere, including their sources, sinks, and transformations along the way. Scientists study atmospheric transport to better understand air quality, climate change, and how pollutants can affect human health and ecosystems on a regional or global scale. Research in this area often involves the use of computer models, satellite data, and ground-based measurements to track the movement of atmospheric pollutants and to assess their impact on the environment.