After an extensive, multi-year scientific and technical review, EPA has removed methyl ethyl ketone (MEK) from the Clean Air Act list of toxic air pollutants. Declassifying MEK will not compromise public health and may even pose a public health benefit as companies substitute MEK for more toxic or environmentally damaging chemicals. Although removed from the list of toxic air pollutants, MEK remains regulated as a volatile organic compound.
Dec. 14 – EPA – Methyl Ethyl Ketone Removed from List of Toxic Air Pollutants
