Forever, As Advertised: The Slow Reckoning With PFAS

The phrase "forever chemicals" is doing a great deal of quiet work. It sounds almost whimsical, the kind of marketing line a company might once have been proud of. In fact it describes a class of compounds — per- and polyfluoroalkyl substances, or PFAS — engineered to be so chemically stable that they essentially do not break down, not in the environment and not in the human body. They were a triumph of mid-century industrial chemistry: the slickness in nonstick pans, the repellency in stain-proof carpet and waterproof jackets, the active ingredient in firefighting foam, the grease barrier in fast-food wrappers. Their great virtue, permanence, is now their defining hazard.

Because they do not degrade, they accumulate. Decades of use have put PFAS into soil, rivers, rain, and groundwater, and from there into people. Testing has repeatedly found the compounds in the blood of the overwhelming majority of the population — not the exposed few, but nearly everyone — and in drinking water across much of the country. The body has no efficient way to clear them. They build up, and they linger for years. A growing body of research has associated certain PFAS with kidney and testicular cancers, immune suppression, thyroid disruption, elevated cholesterol, and harm to fetal development,

among other effects, even at very low concentrations.

The part of the story that should provoke the most anger is also the part most often left out: the makers knew. Litigation and document disclosures involving manufacturers such as DuPont and 3M have surfaced internal records indicating that the companies understood decades ago that these chemicals were accumulating in workers and the public and were associated with health concerns, even as production and reassurance continued. The pattern is grimly familiar from tobacco and from leaded gasoline — private knowledge of harm running years, sometimes decades, ahead of public acknowledgment, with the gap measured in exposed populations.

Regulation arrived late and slowly. It was only in 2024 that the Environmental Protection Agency finalized its first enforceable national limits for several PFAS in drinking water — a genuine milestone, and one that came generations after the compounds entered widespread use. Around the same time, manufacturers agreed to multibillion-dollar settlements with public water systems over contamination, sums large enough to make headlines and small enough, set against the scope of the problem, to function as a cost of doing business. The chemicals are still in use in many applications. The ones already in the environment are, by definition, not going anywhere.

What is striking, from the vantage of a publication interested in what the press neglects, is how poorly the scale of this matches its coverage. PFAS contamination is not a local story about a single poisoned town, though it is usually told that way — a community near a factory or an air base, a cluster of illnesses, a lawsuit. Each of those stories is real, and each is framed as discrete, regional, contained. The aggregate is not contained at all. It is one of the largest mass-exposure events in the country's history, affecting essentially everyone, traceable to a known set of products and a known set of corporate decisions. Yet it lacks the narrative shape the news rewards: there is no single day it happened, no dramatic spill to film, no villain who can be made to confess on camera. The harm is diffuse, chronic, and chemical, and the machinery of coverage struggles with all three.

The slowness is structural, not accidental. A chemical that takes years to accumulate and decades to be linked to disease outlasts every short-term incentive arrayed against regulating it. Companies have product lines to defend and legal exposure to manage. Agencies move at the pace of rulemaking and litigation. Reporters need an event, and "still in your blood, still in the water, still mostly unregulated" is a condition, not an event. So the story advances in increments — a study, a settlement, a rule — each covered briefly and then dropped, while the underlying fact, that the exposure is universal and permanent, never quite assembles into the headline it deserves.

There is a lesson in the name. "Forever chemicals" was meant, at first, to describe durability as a selling point, and it has become an unintentional confession. The compounds are forever, the exposure is effectively forever, the corporate knowledge ran ahead of the public's for what felt like forever, and the cleanup — to whatever extent it is even possible — will take longer still. The reckoning has finally begun. The chemicals were in us long before it did, and they will be in us long after the news has moved on.