Haze formation research focuses on understanding the processes that lead to the formation of atmospheric haze, which is a type of air pollution consisting of fine particles and aerosols that reduce visibility and impact human health and the environment. This research involves studying the sources of haze, such as vehicle emissions and industrial activity, as well as the chemical reactions that occur in the atmosphere to produce haze particles. By understanding the factors that contribute to haze formation, researchers can develop strategies to mitigate its impacts and improve air quality.