01718oam 2200421 450 991070472950332120150318163318.0(CKB)5470000002444432(OCoLC)905087850(OCoLC)995470000002444432(EXLCZ)99547000000244443220150318d2012 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierRegulatory impact analysis for the proposed revisions to the National Ambient Air Quality Standards for particulate matterResearch Triangle Park, N.C. :U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division,2012.1 online resource (522 unnumbered pages) color illustrations, mapsTitle from title screen (viewed Mar. 17, 2015)."June 2012"."EPA-452/R-12-003".Includes bibliographical references.Air qualityStandardsUnited StatesAirPollutionLaw and legislationUnited StatesAir quality managementUnited StatesAir qualityStandardsAirPollutionLaw and legislationAir quality managementUnited States.Environmental Protection Agency.Health and Environmental Impacts Division,GPOGPOGPOBOOK9910704729503321Regulatory impact analysis for the proposed revisions to the National Ambient Air Quality Standards for particulate matter3325484UNINA