A draft memo from the E.P.A. assumes a safe threshold exists for formaldehyde, upending earlier findings that there is no safe level of exposure to the carcinogen.
Starting With Formaldehyde, Trump Administration Reassesses Chemical Risks
A draft memo from the E.P.A. assumes a safe threshold exists for formaldehyde, upending earlier findings that there is no safe level of exposure to the carcinogen.
