Stop playing whac-a-mole with forever chemicals

The more you learn about PFAS — perand polyfluoroalkyl substances — the worse it gets. Though improvements in monitoring and remediation techniques are welcome, what the world needs first and foremost is a universal ban on the chemicals. In fact, we needed it yesterday.

- Lara Williams, Tribune News Service

There are more than 10,000 PFAS, also known as “forever chemicals,” and they're used almost everywhere, including in nonstick cookware, waterproof clothing, smartphones, packets of microwave popcorn, hair conditioners, firefighting foam, pacemakers, pesticides and dental floss.

They don't readily degrade; they also don't stay where we put them. As a result, we can now find PFAS in places such as our blood, human breast milk, Antarctica, wild animals and tap water. In the Netherlands, people have been warned not to eat the eggs from their backyard chickens by the National Institute for Public Health and the Environment due to high levels of the chemicals. Though it’s not yet clear why home-produced eggs have higher amounts of PFAS than commercial ones, one theory is that earthworms now contain such chemicals, and hens like to eat the worms.

An analysis by environmental groups Wildlife and Countryside Link and the Rivers Trust found that nearly all rivers, lakes and ponds in England exceed proposed safety limits, with 85% containing levels at least five times higher. France has banned tap water in 16 communes due to PFAS contamination, while a piece of investigative journalism called the Forever Pollution Project located 23,000 contaminated sites across Europe and a further 21,500 sites of presumptive contamination. I expect we haven't seen the last of the tap water bans.

If the scale and extent of the pollution are hard to get your head around, the health implications are worse. PFAS have been linked to increased risk of various types of cancer, fertility problems, birth complications, delays to puberty and weakened immune systems. They've also been associated with increased cholesterol levels and kidney problems.