Читать книгу Non-halogenated Flame Retardant Handbook - Группа авторов - Страница 18

Chemical regulation in Canada is governed by the Canadian Environmental Protection Act (CEPA) [53] as well as new substances/existing substance under its Chemical Management Plan. Flame retardant chemicals which are regulated under this law include brominated diphenyl ethers (BDPEs), hexabromocyclododecane (HBCD), and tetrabromobisphenol A. As per the law, new chemicals are investigated and added to the regulatory list as PBT data becomes available. Similar to laws in the US, known brominated flame retardants with known negative PBT profiles are banned from use and import into Canada. In 2019 Environment Canada stated that decebromo diphenylethane (DBDPE) may contribute to the formation of persistent, bioaccumulative, and inherently toxic transformation products, such as lower brominated BDPEs, in the environment. A ban on the manufacture, sale or import of the brominated FR DBDPE has been proposed (pending as of 2021-03). This is remarkable in so far as DBDPE has often been cited as an example of regrettable substitution, where a regulated substance (decabromodiphenylether, DBDE) is replaced by industry with a molecule that is just slightly modified, so evading the regulatory restriction whilst still having similar environmental properties.