The Canadian government has announced that four ethers have been cleared from the toxic list under section 64 of the Canadian Environmental Protection Act (CEPA 1999). These four4 substances are used in a variety of industries including; oil, aviation, air fresheners, cleaning products, fuels, and automotive. These substances are cleared from the toxic list due to lack of evidence that they could cause any harmful risk to the environment and general public health.  

The four ethers substances are mentioned below.  

• diethyl ether (DEE);  

• diphenyl ether (DPE);  

• dimethyl ether (DME); and  

• dipropylene glycol methyl ether (DPGME).  

Furthermore, the Health Canada and Environment and Climate Change Canada (ECCC) have announced that they won't take any further regulatory action for these four substances.