In 1938, a DuPont chemist named Roy Plunkett accidentally created a substance that would change the world. He was experimenting with refrigerants when he discovered a white, waxy solid that was incredibly slippery, chemically inert, and heat-resistant. He called it polytetrafluoroethylene—PTFE. We know it as Teflon.
DuPont recognized the commercial potential immediately. By 1945, they were selling Teflon-coated cookware. By the 1960s, nearly every American kitchen had a non-stick pan. By the 1990s, Teflon was everywhere—cookware, carpets, clothing, food packaging, dental floss, cosmetics.
What DuPont didn't tell the public was that making Teflon required a chemical called C8—a compound that would eventually contaminate the blood of 99% of Americans and most living things on Earth. A chemical that never breaks down. A chemical they knew was toxic for decades before anyone else found out.
The C8 Problem
C8—perfluorooctanoic acid (PFOA)—is part of a family of chemicals called PFAS: per- and polyfluoroalkyl substances. They're known as "forever chemicals" because they don't biodegrade. Once released into the environment, they persist for thousands of years.
C8 was the key ingredient that made Teflon stick to metal pans. Without it, the coating flaked off. DuPont used it by the ton at their Washington Works plant in Parkersburg, West Virginia, dumping waste into the Ohio River and unlined pits that leached into groundwater.
The company knew C8 was dangerous almost from the beginning. Internal documents from the 1950s show DuPont scientists noting that C8 was "toxic" and should be "handled with extreme care." By 1961, they knew it caused liver enlargement in rats. By 1981, they knew it crossed the placenta and caused birth defects.
They didn't tell anyone.
The Cover-Up
For decades, DuPont assured regulators and the public that C8 was safe. They told the EPA it was "biologically inert." They told workers it was harmless. They told the community in Parkersburg that the chemical in their drinking water posed no risk.
Meanwhile, their own scientists were documenting C8's dangers:
- 1961: Rat studies show liver damage
- 1978: Workers exposed to C8 show elevated liver enzymes
- 1981: Two pregnant workers give birth to babies with facial deformities—one eye and nostril
- 1984: C8 detected in local tap water at 7,000 parts per trillion—far above safe limits
- 1991: Internal study links C8 to testicular cancer in rats
DuPont's response wasn't to stop using C8. It was to hide the evidence. They established "safe" exposure levels based on flawed studies. They lobbied regulators to keep PFAS unregulated. They funded research designed to create doubt about health effects. They followed the tobacco industry playbook: deny, delay, deceive.
The Whistleblower
In 1998, a West Virginia cattle farmer named Wilbur Tennant contacted a young corporate lawyer named Rob Bilott. Tennant's cattle were dying—200 of them, with bizarre symptoms: bloated organs, black teeth, tumors. They drank from a creek that ran through DuPont's Washington Works property.
Bilott wasn't an environmental lawyer. He represented chemical companies. But Tennant was persistent, and Bilott agreed to look into it. What he found changed his life—and eventually exposed one of the largest environmental crimes in history.
Through a court discovery process, Bilott obtained 110,000 pages of internal DuPont documents. The documents revealed everything: decades of toxicity studies, evidence of widespread contamination, and a systematic campaign to hide the truth from regulators and the public.
Bilott spent the next 20 years fighting DuPont. He filed a class-action lawsuit on behalf of 70,000 people exposed to C8-contaminated water. He took the case all the way to the Supreme Court. He won—but at enormous personal cost. His health failed. His career stalled. He became known as the lawyer who turned against his own clients.
In 2017, DuPont settled the C8 litigation for $671 million. It was one of the largest environmental settlements in history. But for the thousands of people with cancer, thyroid disease, and ulcerative colitis linked to C8 exposure, the money couldn't buy back their health.
The Health Effects
The C8 Science Panel—a group of independent epidemiologists funded by the DuPont settlement—spent seven years studying exposed populations. In 2012, they released their findings: C8 is "more likely than not" linked to:
- Kidney cancer
- Testicular cancer
- Thyroid disease
- Ulcerative colitis
- High cholesterol
- Pregnancy-induced hypertension
- Preeclampsia
Subsequent research has added more conditions to the list: immune system dysfunction, reduced vaccine effectiveness, developmental delays in children, and possible links to diabetes and obesity.
The Forever Chemical Crisis
C8 was just the beginning. There are over 12,000 PFAS chemicals, and they're everywhere:
In Your Home
- Non-stick cookware: Teflon pans release PFAS when overheated
- Waterproof clothing: Gore-Tex, rain jackets, outdoor gear
- Stain-resistant fabrics: Carpets, upholstery, Scotchgard
- Food packaging: Pizza boxes, microwave popcorn bags, fast-food wrappers
- Dental floss: Glide and other "slippery" brands
- Cosmetics: Waterproof mascara, foundation, sunscreen
In Your Water
PFAS contaminate drinking water for over 200 million Americans. Military bases, airports, and industrial sites are major sources. The chemicals travel miles underground, poisoning wells far from their origin.
In Your Food
PFAS bioaccumulate up the food chain. They're found in fish, dairy, meat, and produce grown with contaminated water or soil. Once in your body, they stay for years—the average half-life of PFOA in humans is 3.8 years.
In Your Blood
Tests have found PFAS in 99% of Americans' blood. They're passed from mother to child through the placenta and breast milk. A newborn baby's first meal contains chemicals that will stay in their body for decades.
The Corporate Response
In 2006, facing mounting lawsuits and regulatory pressure, DuPont and other chemical companies agreed to phase out C8 by 2015. But they had a plan: replace C8 with slightly different PFAS chemicals like GenX, which they claimed was safer.
GenX is not safer. Studies show it causes the same health effects as C8. It's just less studied, so companies can claim ignorance while the research catches up. This is the "regrettable substitution" strategy—replace a known toxin with an unknown one, buy another 20 years of profits.
In 2019, DuPont (now Chemours after a corporate restructuring designed to limit liability) agreed to pay $4 billion for environmental cleanup. But the contamination is so widespread that complete remediation is impossible. Some rivers, aquifers, and ecosystems will be toxic forever.
Regulatory Failure
How did this happen? The answer is regulatory capture—the chemical industry's infiltration of the agencies meant to regulate it.
The EPA has known about PFAS toxicity since the 1990s but failed to regulate them. Under the Toxic Substances Control Act, chemicals are presumed safe until proven otherwise. The burden of proof is on the EPA, not the companies, and proving harm takes decades.
Meanwhile, chemical industry lobbyists write legislation, fund favorable research, and secure positions at regulatory agencies. The revolving door spins: EPA officials become chemical company executives; chemical company lawyers become EPA administrators.
It wasn't until 2024 that the EPA finally set enforceable limits on six PFAS chemicals in drinking water—nearly 80 years after DuPont first started using them.
What You Can Do
The PFAS crisis can feel overwhelming. These chemicals are everywhere, they're in your body already, and they never go away. But you can reduce your exposure and advocate for change:
Reduce Exposure
- Filter your water: Reverse osmosis and activated carbon filters remove most PFAS
- Ditch non-stick cookware: Use stainless steel, cast iron, or ceramic
- Avoid stain-resistant products: Skip Scotchgard, waterproof coatings
- Check cosmetics: Look for PTFE or "fluoro" ingredients
- Limit takeout: Grease-resistant food packaging is a major source
Support Change
- Vote for candidates who prioritize environmental regulation
- Support organizations fighting for chemical safety (EWG, NRDC)
- Contact your representatives about PFAS legislation
- Hold companies accountable through consumer pressure
The Lesson
The DuPont story is a case study in corporate greed and regulatory failure. A company discovered a useful chemical, learned it was toxic, hid the evidence for decades, poisoned millions of people, and made billions in profits. The executives who made those decisions retired wealthy. The people they poisoned suffer still.
Rachel Carson warned us about this in 1962. She saw the pattern: chemical companies releasing toxins into the environment, regulators looking away, and the public paying the price in disease and death. Sixty years later, the pattern continues.
What will it take to change? More whistleblowers like Rob Bilott. More activists demanding accountability. More scientists speaking truth to power. And more citizens refusing to accept that corporate profits matter more than public health.
The forever chemicals in your blood are a reminder: we cannot trust corporations to self-regulate. We cannot trust regulators captured by industry. We must protect ourselves, our communities, and our future through constant vigilance and collective action.
DuPont poisoned the world. The question is: will we let them get away with it?