Dichloromethane, also known as DCM and methylene chloride, is a volatile organic and colorless liquid chemical with a sweet, pleasant odor like chloroform. The greatest use of DCM is as a paint remover. Other uses include: solvent and cleaning agent in chemical manufacture, textiles, electronics, metals and plastics, pesticides industries; blowing and cleaning agent in the urethane foam industry; fumigant for strawberries and grains, and as degreener for citrus fruits; in pharmaceuticals and as an anesthetic; in extraction of caffeine, cocoa, fats, spices and beer hops; as a heat transfer agent in refrigeration products. The major source of dichloromethane in drinking water is discharge from drug and chemical companies.
Some people who drink water containing dichloromethane well in excess of the maximum contaminant level (MCL) for many years could experience problems with their liver and may have an increased risk of getting cancer.
MCL ADVISORY - ACTION IS HIGHLY RECOMMENDED
Dichloromethane levels were detected in your water sample to exceed the maximum contaminant level (MCL).
ACTION IS OPTIONAL
Dichloromethane levels were detected in your water sample but do not exceed the maximum contaminant level.
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Dichloromethane in Drinking Water
- ATSDR - Toxic Substances Portal - Methylene Chloride
- Ohio Department of Health - Private Water Systems Program - Water Quality - Organic Contaminants
- ATSDR ToxFAQs Fact Sheet - Methylene Chloride