Tetrachlorobenzenes

Tetrachlorobenzenes (TeCBs) are not currently produced or used in their pure form in Canada, and there is currently no domestic commercial demand for TeCBs. Formerly, they could be found in dielectric fluids where they were used to top up polychlorinated biphenyl (PCB) transformers and in dyestuff carriers. These applications have either been discontinued (dye carriers) or are being phased out (dielectric fluids). A possible source of release may include dielectric PCB material still in use. TeCBs may be generated when organic compounds are burned or exposed to a large source of energy in the presence of a chlorine source. Through this mechanism, they may be formed and released to the environment as a result of waste incineration and barrel burning of household waste.

CAS (Chemical Abstracts Service) registry numbers: 12408-10-5, 84713-12-2, 634-90-2, 634-66-2 and 95-94-3

For more information on this substance, please visit the Chemical Substances website.


Risk Assessment


Source(s)

This substance is entering the environment from the following source(s):


Risk Management Strategy

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Risk Management Tool(s)

Tool(s) developed to manage risks associated with the substance:


Risk Management Supporting Activities

Activities supporting the development or implementation of the risk management tool(s):

Forms related to the Prohibition of Certain Toxic Substances Regulations, 2012:


Consultation

Consultation (past and present) on the substance:


Other Information


Contact

Email: GR-RM@ec.gc.ca
Fax: 819-994-0007

Chemicals Management Division
Environment Canada
351 St. Joseph Blvd.
Gatineau, Quebec
K1A 0H3

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