By Mia DiFelice
The story begins in 1938, with the accidental invention of Teflon. Made famous by the miraculous “nonstick” cookware, Teflon flooded American kitchens in the 1960s. But Teflon’s stick- and stain-fighting power comes from the chemical PFOA. As Teflon sold the miracle of PFOA to consumers, new, similar chemicals flooded the market. Those chemicals, called per- and polyfluoroalkyl substances (PFAS), are showing up in our baby clothes, our burger wrappers, our blood. And they’re not going away any time soon.
Is That a Bad Thing?
Very — and PFAS manufacturers have known this for a long time. In 2005, the EPA fined Dupont, the maker of Teflon, $16.5 million. The fine penalized Dupont for covering up decades of studies that linked PFOA to cancer, birth defects and liver damage. Dupont and 3M, the maker of another PFAS chemical, knew back in the ’60s that these substances could be dangerous.
Now, we see studies linking PFAS to thyroid disease, decreased fertility, endocrine disruption, cognitive problems and immune system impacts (for example, reduced response to vaccines). There is even evidence linking PFAS exposure to greater risk of COVID and more severe COVID symptoms.
Despite this research, the U.S. still lacks federal regulations for PFAS. Chemical companies can keep information on PFAS close to the chest, so we often can’t know if a product we purchase contains the chemicals. Our federal government does not regulate all industrial PFAS wastewater discharges, either. On top of that, it has not designated PFAS as hazardous substances, which would help clean up contamination sites.
Where Do We Find PFAS?
In short, everywhere. If a product is labeled non-stick, stain-resistant or water-resistant, there’s a good chance it contains PFAS. And once PFAS are in the environment, they spread and persist. When we toss garbage with PFAS in it, the chemicals leach from the landfill into our air, water and soil. Then they can get into the groundwater. Scientists have even found PFAS in places thought to be undamaged by humans, like the Arctic and the deep ocean. In the U.S., researchers estimate they’re in 97% of people’s blood.
And PFAS, also called “forever chemicals,” are nearly impossible to get rid of. If a manufacturer stopped using PFAS right now, they could still find traces in products coming out of that plant a decade later.
The Stuff We Buy
Stain-resistant and water-resistant fabrics usually have PFAS. For instance, a recent study found 60% of fabrics used in children’s products labeled “waterproof” or “stain-resistant” contained PFAS. When PFAS-treated upholstery or carpeting wears down, we inhale the dust. We can eat PFAS when they slide off our water-resistant food packaging. They’re also in our cosmetics and our toiletries, where they are most likely to get into our systems through our eyes.
The Food We Eat
When we flush products with PFAS down the drain, the chemicals build up in our sewers. Many wastewater treatment plants filter out the solids and clean the water. But those solids have to go somewhere, and often, they go to farms. Farms have long-used sewer sludge as fertilizer. As a result, the Environmental Working Group estimates that 20 million acres of US cropland could be contaminated with PFAS. The chemicals now appear in the crops of PFAS-affected farmland — and in the meat and milk of animals that eat those feed crops.
The Water We Drink
In 2021, EWG found PFAS contaminants in the public and private water of all 50 states. We might drink from the tap several times a day, so if PFAS are in the water, our bodies are continuously contaminated. Researchers have found PFAS in the drinking water of towns near factories that work with the chemicals. They’ve found the chemicals in the drinking water of towns near military bases, which use PFAS-laden firefighting foam for training exercises. We depend on water to survive — our government should not allow it to be laced with toxic forever chemicals.
What Can We Do About PFAS?
Many companies have voluntarily phased out PFAS, especially in the last twenty years as their dangers came to light. However, the EPA has not set a legal limit for PFAS in drinking water, nor required manufacturers to help clean up contamination.
In 2021, the agency released its “PFAS Strategic Roadmap,” committing the agency to several measures to combat PFAS in the next few years. And just this week, it designated $1 billion of Infrastructure Bill funds to help local communities address PFAS. In the same announcement, the EPA published health advisories on four major PFAS chemicals — but this is out of thousands in the family.
While these are important steps in the right direction, the advisories aren’t enforceable, and communities have already waited decades for action. There is so much more work to be done.
Food & Water Watch calls for:
- PFAS to be regulated as a class of chemicals, not on an individual level. Much of the work on PFAS so far has focused on PFOA and PFOS, allowing dozens of other PFAS to come onto the market with little scrutiny. When PFOA came under fire, Dupont was quick to replace it with GenX, shorter-chain compounds that share many of the same toxic traits as its sibling chemicals. But GenX may be even more toxic and could be more difficult to remove from drinking water. Without addressing PFAS as a category, the EPA will continue playing whack-a-mole with the thousands of varieties.
- Enforceable national drinking water limits, not only for legacy PFAS chemicals but all the chemicals in the family.
- Hazardous substance designation under the Superfund law for PFAS as class to jump start the cleanup of contaminated areas.
- Passage of the WATER Act, which provides greater support for local water systems to test and treat for PFAS in drinking water and wastewater systems. This support must reach both public water utilities and household wells. If remediation isn’t possible, Congress must provide support to connect communities with contaminated water to new, clean water sources.
We need more funding and better policy for PFAS. Tell Congress to pass the WATER Act!