Internal documents reveal that the Trump administration's Environmental Protection Agency systematically weakened formaldehyde cancer regulations by substituting industry-funded science for the agency's own expert assessments, according to records obtained through Freedom of Information Act requests.
The documents, published by The Guardian, expose how political appointees overrode career scientists to adopt industry positions that downplayed formaldehyde's carcinogenic risks—decisions that continue to affect millions of Americans exposed to the chemical in homes, workplaces, and consumer products.
Formaldehyde, a widely used industrial chemical found in building materials, furniture, and household products, has been classified as a known human carcinogen by the International Agency for Research on Cancer and the EPA's own scientific assessments. The compound is linked to increased risks of nasal and throat cancers, particularly among workers in manufacturing and construction industries.
EPA scientists had developed stringent exposure limits based on decades of peer-reviewed research showing cancer risks at relatively low concentrations. But internal emails and memoranda show that Trump administration officials systematically dismantled those protections after meetings with representatives from the formaldehyde and wood products industries.
"This is regulatory capture in its most dangerous form," explained public health advocates reviewing the documents. "Career scientists did their jobs, but political appointees substituted industry talking points for independent expertise."
The documents detail how EPA leadership under Andrew Wheeler, a former coal industry lobbyist who served as EPA Administrator from 2019 to 2021, directed staff to incorporate industry-funded studies that contradicted the agency's comprehensive scientific assessment.
These industry studies, criticized by independent researchers for methodological flaws and potential conflicts of interest, consistently found lower cancer risks than EPA's own analysis. By giving them equal or greater weight than peer-reviewed research, the administration justified weakening protective standards.
