Canada takes first step to regulate toxic 'forever chemicals.' But is it enough?
These chemicals are found in food packaging, waterproof cosmetics, non-stick pans, stain- and water-resistant fabrics and carpeting, cleaning products, paints and fire-fighting foams.
- These chemicals are found in food packaging, waterproof cosmetics, non-stick pans, stain- and water-resistant fabrics and carpeting, cleaning products, paints and fire-fighting foams.
- As environmental health researchers, we believe that the government needs to regulate and, eventually, stop the continued release of persistent toxic PFAS into the environment and also prevent the creation of any toxic replacements.
How do PFAS affect us?
- The widespread use of these chemicals can be attributed to the strong chemical bond between the carbon and fluorine atoms that make up the backbone of PFAS.
- However, that strong bond also leads to PFAS taking years, even decades, to break down in the environment.
- For example, larger, older fish tend to contain higher concentrations of PFAS compared to smaller, younger fish.
- A Canadian study found that at least 65 per cent of infants were exposed to PFAS in the womb.
Regulating PFAS
- Canada also regulates another subset of PFAS called long-chain perfluorocarboxylic acids.
- However, there are over 4,700 PFAS, and the Canadian and international regulations in place only cover a tiny fraction of the forever chemicals in the market.
Populations at highest risk
- As public health scientists try to catch up with the industry’s unrestrained chemical production, some populations are put at heightened risk of PFAS exposure, including firefighters, pregnant women and Arctic Indigenous populations.
- As emphasized in our report, Inuit living in Nunavik have some of the highest PFAS concentrations worldwide.
- Some compounds measured in their blood were up to seven times higher than the concentrations measured in the rest of the Canadian population.
Towards better regulation
- Yet, we know little about the impact of being exposed to multiple PFAS at a time.
- Ongoing scientific studies are trying to understand the implications of mixtures on our health and how to regulate these forever chemicals accordingly.
- The Canadian report is a necessary step to inform future regulations and stop the continued release of persistent PFAS in the environment.