Volatile organic compounds (VOCs) are a diverse group of organic chemicals that have high vapor pressure at room temperature. They are emitted by a wide range of sources, including industrial processes, vehicular emissions, and natural sources such as plants and trees. VOCs play an important role in atmospheric chemistry and air quality, as they can react with other pollutants in the atmosphere to form harmful secondary pollutants such as ozone and particulate matter. Research in this area focuses on understanding the sources, fate, and transport of VOCs in the environment, as well as their potential impact on human health and the environment. Studies also investigate strategies for mitigating VOC emissions and improving air quality.