Środowisko i energia · 19.07.2004

List of Hazardous Air Pollutants, Petition Process, Lesser Quantity Designations, Source Category List; Petition To Delist Methyl Isobutyl Ketone

The EPA is announcing the receipt of a complete petition from the Ketones Panel of the American Chemistry Council (ACC) (formerly the Chemical Manufacturers Association) requesting EPA to remove the chemical methyl isobutyl ketone (MIBK) (hexone) (Chemical Abstract Service No. 108101) from the list of hazardous air pollutants (HAP) contained in section 112(b)(1) of the 1990 Clean Air Act (CAA). We have determined that the ACC's original petition dated April 22, 1997, and the addenda provided by the ACC through October 17, 2003, will support an assessment of the human health impacts associated with people living in the vicinity of facilities emitting MIBK. In addition, the data submitted by the ACC will support an assessment of the environmental impacts associated with emissions of MIBK to the ambient air and deposited onto soil or water. Consequently, we have concluded that ACC's petition is complete as of October 17, 2003, the date of the last addendum, and is ready for public comment and the technical review phase of our delisting procedure. The EPA invites the public to comment on the petition and to provide additional data, beyond that filed in the petition, on sources, emissio