After 1995, US production of methylchloroform will be less than 50 million pounds per year. The major users of methylchloroform are companies that use the chemical to clean metal surfaces. It is also added to aerosol formulations, adhesives, protective surface coatings, cutting oils, and printing inks. Companies also use methylchloroform to make other chemicals, such as vinylidene chloride. Exposure to methylchloroform can occur in the workplace or in the environment following releases to air, water, land, or groundwater.
Exposure can also occur when people use products containing the chemical.
Methylchloroform enters the body when breathed in with contaminated air or when consumed with contaminated food or water. It is also absorbed though skin contact. Nearly all the methylchloroform that enters the body is removed with exhaled air. The body may store small amounts of the chemical in fat tissue before it is either removed with exhaled air or it breaks down and is removed in urine. Methylchloroform evaporates when exposed to air.