01621oam 2200433 a 450 991070201630332120200807082820.0(CKB)5470000002423969(OCoLC)343726252(EXLCZ)99547000000242396920090507d2009 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierMeeting the challenge of cleaner air[electronic resource] Canada-United States, progress under the Air Quality Agreement, 2008[Ottawa] :[Canada-United States Air Quality Committee] ;[Washington, D.C]:[Office of Air and Radiation],[2009]1 online resource color illustrations, color mapsTitle from title screen (viewed on Sept. 4, 2012).Meeting the challenge of cleaner air Air quality managementUnited StatesAir quality managementCanadaTransboundary pollutionUnited StatesTransboundary pollutionCanadaAir quality managementAir quality managementTransboundary pollutionTransboundary pollutionCanada.Environment Canada.Canada-United States Air Quality Committee.United States.Environmental Protection Agency.Office of Air and Radiation.NLCNLCGPOBOOK9910702016303321Meeting the challenge of cleaner air3531995UNINA