Chloroethenes, also known as chlorinated ethenes, are a group of organic compounds that contain carbon, hydrogen, and chlorine atoms. The most common member of this group is vinyl chloride, which is primarily used to produce polyvinyl chloride (PVC) plastic. These compounds are typically colorless gases or liquids with a sweet odor and are used in various industrial applications. Chloroethenes can be harmful to human health and the environment. They are often found as pollutants in soil and groundwater due to industrial activities. Proper handling and disposal are essential to minimize their impact, as exposure can lead to serious health issues, including respiratory problems and increased cancer risk.