Note that we’re talking about fabric softners “air fresheners, cleaners and cosmetic products, such as hair sprays” here.
Health Canada and Environment Canada are recommending adding a former chemical warfare agent, diethyl sulphate, to the country’s list of toxic substances.
Although the substance isn’t a household name, it can be used to make fabric softeners or flocculants in wastewater and sewage sludge control, and in the production of pharmaceuticals, fragrances and dyes….
[And] it did flag butane and isobutane for further assessment. Both chemicals have been classified as carcinogens by the European Commission when they contain another chemical, butadiene, as an impurity in concentrations of more than 0.1 per cent.
Butane is widely used as a fuel additive, but it can also be found in air fresheners, cleaners and cosmetic products, such as hair sprays, according to information about the chemical posted by the government on its website.