The views presented in On Balance are those of the authors and do not represent the views of the Society, its Board, or its members.
This post first appeared as an essay in the Regulatory Review:https://www.theregreview.org/2026/02/04/dudley-valuing-the-benefits-of-reducing-fine-particles/
The New York Times reported recently that the U.S. Environmental Protection Agency (EPA) no longer plans to quantify the benefits of reducing exposure to certain air pollutants as it evaluates the need for regulation. In a final rule governing combustion turbines issued in January, EPA expressed concerns that its past “analytical practices often provided the public with a false sense of precision and more confidence regarding the monetized impacts of fine particulate matter (PM₂.₅) and ozone than the underlying science could fully support.” The rule announced that “to rectify this error,” EPA will no longer monetize the benefits associated with reducing these two pollutants.

The views presented in On Balance are those of the authors and do not represent the views of the Society, its Board, or its members.