Burying the formaldehyde study is part of an effort by Pruitt and aides to undermine EPA’s research program, current and former officials tell POLITICO.

The Trump administration is suppressing an Environmental Protection Agency report that warns that most Americans inhale enough formaldehyde vapor in the course of daily life to put them at risk of developing leukemia and other ailments, a current and a former agency official told POLITICO.

The warnings are contained in a draft health assessment EPA scientists completed just before Donald Trump became president, according to the officials. They said top advisers to departing Administrator Scott Pruitt are delaying its release as part of a campaign to undermine the agency’s independent research into the health risks of toxic chemicals.

Andrew Wheeler, the No. 2 official at EPA who will be the agency’s new acting chief as of Monday, also has a history with the chemical. He was staff director for the Senate Environment and Public Works Committee in 2004, when his boss, then-Chairman Jim Inhofe (R-Okla.), sought to delay an earlier iteration of the formaldehyde assessment.