Federal Register - "Integrated Science Assessment for Ozone and Related Photochemical Oxidants"

Title: Integrated Science Assessment for Ozone and Related Photochemical Oxidants Source: Federal Register Data/Action: ENVIRONMENTAL PROTECTION AGENCY (Notice) Date: 2/15/2013 Text Preview: PROTECTION AGENCY [FRL-9780-2] Integrated Science Assessment for Ozone and Related Photochemical Oxidants AGENCY: Environmental Protection Agency (EPA). ACTION: Notice of availability. ----------------------------------------------------------------------- SUMMARY: The EPA is announcing the [Federal Register Volume 78, Number 32 (Friday, February 15, 2013)] [Notices] [Pages 11172-11173] From the Federal Register Online via the Government Printing Office [www.gpo.gov] [FR Doc No: 2013-03471] ----------------------------------------------------------------------- ENVIRONMENTAL expected from the presence of [a] pollutant in the ambient air * * *. '' Under section 109 of the Act, EPA is then to establish NAAQS for each pollutant for which EPA has issued criteria. Section 109(d) of the Act subsequently requires periodic review and, if appropriate, revision of existing air