Tetrachloroethylene is no longer produced in Canada but continues to be imported, primarily for use as a chemical feedstock and as a solvent in the dry-cleaning and metal-cleaning industries. Approximately six kilotonnes was imported in 2002. Feedstock use results its transformation to another chemical, with minor releases during this process. Solvent uses are dispersive and do not result in its transformation or destruction and tetrachloroethylene is expected to enter the environment, primarily the atmosphere. Tetrachloroethylene has been measured in outdoor air and in the air inside homes within Canada, and has been detected in drinking water across the country and in contaminated surface waters in the Great Lakes and the St. Lawrence River. The substance is present in groundwaters in several provinces, often as a result of its inappropriate disposal and release from dry-cleaning and degreasing facilities or landfills.
Synonyms include: 1,1,2,2-tetrachloroethylene, tetrachloroethene, ethylene tetrachloride, carbon dichloride, carbon bichloride and perchloroethylene.
CAS (Chemical Abstract Service) registry number: 127-18-4
- Priority Substances List Assessment Report
- Order Adding Toxic Substances to Schedule 1 to the Canadian Environmental Protection Act, 1999
- CEPA 1999 Schedule 1 - List of Toxic Substances - This substance has been added to the List of Toxic Substances. It is entering or may enter the environment in a quantity or concentration or under conditions that:
a) have or may have an immediate or long-term harmful effect on the environment or its biological diversity.
- Full life cycle management of the substance (Track 2) under the Toxic Substances Management Policy
This substance is entering the environment from the following source(s):
Strategic Options Report
Click on the following link to view strategies and actions recommended to manage risks associated with the substance:
- Tetrachloroethylene in the dry cleaning sector
- Strategic Options for the Management of Toxic Substances:Trichloroethylene and Tetrachloroethylene in Solvent Degreasing
Risk Management Tool(s)
Tool(s) developed to manage risks associated with the substance:
- Solvent Degreasing Regulations
- Tetrachloroethylene (Use in Dry Cleaning and Reporting Requirements) Regulations
- Solvent Degreasing Regulations - Information Centre
- Dry Cleaning - Information Centre
- Notice with Respect to Trichloroethylene and Tetrachloroethylene
- National Pollutant Release Inventory (NPRI) - Information Centre
- North American Commission for Environmental Cooperation Web Site
Email address: GR-RM@ec.gc.ca
Fax number: (819) 994-0007
Chemicals Management Division
200 Sacré Coeur Blvd.
- Date Modified: