When did we decide a human life has no value?

You may not know it, but for most of its history, the Environmental Protection Agency has treated public health as something that belongs in its calculations. When the agency set limits on air pollution, it counted the lives those rules were expected to save. It quantified fewer asthma attacks, fewer heart attacks, and fewer premature deaths. The estimates were debated and revised over time, but the underlying assumption held: protecting health was core to environmental regulation. Until now.

According to reporting by The New York Times, the EPA plans to stop monetizing the health benefits of reducing two of the most widespread and deadly air pollutants: fine particulate matter and ozone. Industry compliance costs will still be calculated. Lives extended and illnesses avoided will no longer appear in the cost-benefit analyses that justify clean-air rules.

An EPA spokeswoman told the Times that the agency would still “consider” health effects, but “not monetizing does not equal not considering or not valuing the human health impact.” The distinction matters, because monetized benefits are what historically made regulations defensible on paper. On paper, the change is narrow. In practice, it reshapes how air policy works

Fine particulate matter most relevant to human health, known as PM2.5, consists of particles less than 2.5 micrometers in diameter, small enough to penetrate deep into the lungs and pass directly into the bloodstream. Ozone, a smog-forming gas created when emissions from power plants, factories, and vehicles mix in sunlight, inflames airways and worsens respiratory disease.

Long-term exposure to both is linked to asthma, cardiovascular disease, stroke, and premature death. Even moderate exposure to PM2.5 can damage the lungs about as much as smoking, according to research cited by the EPA and referenced in the Times report.

As a pulmonologist, I see it play out clinically. My patients get worse when pollution levels are high. Over longer periods, we now know that chronic exposure does not just exacerbate disease. It helps cause it.

When the EPA previously tightened PM2.5 standards, the agency estimated the rule would prevent up to 4,500 premature deaths and 290,000 lost workdays in a single year. For every dollar spent on reducing PM2.5, the EPA calculated as much as $77 in health benefits. Hospitalizations would fall. Lives would be saved.

Agency officials now argue that monetizing health benefits creates “false precision.” In internal documents reviewed by The New York Times, political appointees described past EPA analyses as providing the public with “false confidence regarding the monetized impacts” of PM2.5 and ozone.

To “rectify this error,” the documents state, the EPA will no longer monetize benefits from PM2.5 and ozone. This language is now being inserted into regulatory impact analyses accompanying new rules, including proposals to weaken limits on emissions from power plants.

While uncertainty is real, removing health benefits from the analysis does not resolve it. Cost-benefit analysis shapes outcomes. When health effects disappear from the benefits side of the ledger, regulations become harder to defend. Industry costs remain visible and exact. Public health becomes something that can be acknowledged in narrative form, but not weighed.

As Richard Revesz, former head of the White House Office of Information and Regulatory Affairs, told the Times: “If you’re only considering the costs to industry and you’re ignoring the benefits, then you can’t justify any regulations that protect public health.” What disappears here is the formal recognition that preventing illness and early death is central to environmental policy rather than incidental to it.

The truth is that air pollution does not distribute itself evenly. It concentrates near highways, power plants, refineries, and industrial corridors. The health burden is heavier in communities that already experience higher rates of asthma, cardiovascular disease, and shortened life expectancy.

Clean air is not a lifestyle preference. It is basic infrastructure. When protections weaken, the consequences are predictable, even if they are not evenly shared. The EPA’s state mission is to protect human health and the environment. You cannot tell me that removing lives saved from its core calculations does not alter the mission. Health remains acknowledged, but it will no longer anchor the decision-making process.

For decades, clean-air regulation produced measurable gains. National levels of fine particulate matter fell substantially after standards tightened. Ozone declined. Hospitalizations dropped. Premature deaths were prevented. These improvements did not happen by accident. They followed a regulatory framework that treated health outcomes as central, countable, and worth defending.

The EPA’s own analyses made that explicit. The agency repeatedly concluded that the greatest benefits of air-pollution regulation came from reductions in premature mortality attributable to particulate exposure. Progress, however, has never been guaranteed. Recent evidence suggests that declines in PM2.5 have begun to plateau in parts of the country, even before accounting for wildfire smoke. Climate-driven pollution is already testing the limits of existing protections. This is not a moment of excess regulation.

Against that backdrop, removing lives saved from the analytic core of air-pollution policy is not a neutral adjustment. It weakens the very justification that made progress possible. We did not improve air quality by accident. We improved it by insisting that health belonged in the math. Choosing not to count lives now reflects a decision about what future protections will be built to defend, and which ones will be allowed to slip. This decision belongs to a broader dismantling of public health infrastructure, where protections are weakened not by overt repeal, but by removing the tools that once made them defensible.