PFAS: The Forever Chemicals Explained

Per- and polyfluoroalkyl substances — better known as PFAS — are a family of over 12,000 synthetic chemicals that have earned the ominous nickname "forever chemicals." The name isn't hyperbole: PFAS contain carbon-fluorine bonds, among the strongest in organic chemistry, which means they essentially never break down in the environment.

A Brief History

PFAS were first developed in the 1940s and quickly found their way into countless products. Their unique properties — they repel water, oil, and heat — made them ideal for non-stick cookware, waterproof clothing, food packaging, and firefighting foam.

For decades, they were considered miracle chemicals. It wasn't until the early 2000s that scientists began uncovering the extent of PFAS contamination and its health implications.

Where Are PFAS Found?

The answer is almost everywhere. PFAS have been detected in:

Drinking water supplies worldwide
Non-stick pans and cookware
Waterproof and stain-resistant clothing
Fast food wrappers and microwave popcorn bags
Firefighting foam (AFFF)
Cosmetics and personal care products
Even in rainwater globally

A 2022 study found that rainwater everywhere on Earth now contains PFAS levels that exceed safe drinking water guidelines. There is essentially no pristine environment left untouched.

Health Concerns

Research has linked PFAS exposure to a range of health issues including thyroid disease, liver damage, immune system suppression, reproductive problems, and certain cancers. Children may be particularly vulnerable, as PFAS can cross the placenta and are found in breast milk.

What's Being Done?

The EU is currently considering the most comprehensive PFAS restriction ever proposed, covering all non-essential uses. Meanwhile, water utilities are investing in advanced filtration technologies capable of removing PFAS. But the sheer volume of contamination means cleanup will take decades.

How to Reduce Your Exposure

Choose PFAS-free cookware, avoid stain-resistant fabric treatments, check cosmetics for ingredients containing "fluoro" or "perfluoro," and consider a quality water filter for your drinking water.