Why the attention?
In April 2024, the Environmental Protection Agency (EPA) finalized prohibitions and workplace protections under the Toxic Substances Control Act (TSCA) for methylene chloride to protect human health.
The regulation strives to reduce workers’ exposure to methylene chloride by banning the use and manufacturing, except for some limited use, such as a research lab.
Methylene chloride found in your work area, that does not meet the exceptions or is no longer wanted, will need to be disposed (see the compliance guide). Please contact Environmental Management, and fill out a ticket for disposal request.
If your department plans to keep using Methylene chloride, sampling will need to be performed to ensure exposure limits are being met (see table 1).
More information about the Ruling and on banned use and the exceptions to the rule can be found in the Compliance Guide.
Basic Facts about Methylene Chloride
What is it?
A colorless liquid and a volatile chemical with a sweet odor.
What are other names?
Dichloromethane or DCM.
What are the uses?
A solvent used in consumer and commercial applications, including adhesives and sealants. Used in the automotive industry as a degreaser and cleaner.
How do exposures occur?
Methylene chloride is primarily inhaled. However, exposure can also occur through the skin, or ingested.
What are the risks?
Employees exposed to methylene chloride are at increased risk of developing cancer, adverse effects on the heart, central nervous system and liver, and skin or eye irritation.