LEADER 01953nam 2200445 a 450 001 9910701411803321 005 20120412150850.0 035 $a(CKB)5470000002418964 035 $a(OCoLC)785621374 035 $a(EXLCZ)995470000002418964 100 $a20120412d2010 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aCASAC review of Particulate matter urban-focused visibility assessment, second external review draft (January 2010)$b[electronic resource] /$f[signed] Jonathan M. Samet 210 1$aWashington, D.C. :$cU.S. Environmental Protection Agency, Office of the Administrator, Science Advisory Board, Clean Air Scientific Advisory Committee,$d2010. 215 $a1 online resource (16 pages) $cillustrations (some color) 300 $aTitle from title screen (viewed on Apr. 12, 2012). 300 $a"April 20, 2010"--P. 1. 300 $a"EPA-CASAC-10-009"--P. 1. 517 $aCASAC review of Particulate matter urban-focused visibility assessment, second external review draft 606 $aParticles$xEnvironmental aspects$zUnited States 606 $aVisibility$xMeasurement 606 $aUrban pollution$zUnited States 606 $aAir quality$xStandards$zUnited States 615 0$aParticles$xEnvironmental aspects 615 0$aVisibility$xMeasurement. 615 0$aUrban pollution 615 0$aAir quality$xStandards 701 $aSamet$b Jonathan M$023211 712 02$aUnited States.$bEnvironmental Protection Agency.$bScience Advisory Board. 712 02$aUnited States.$bEnvironmental Protection Agency.$bClean Air Scientific Advisory Committee. 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910701411803321 996 $aCASAC review of Particulate matter urban-focused visibility assessment, second external review draft (January 2010)$93518217 997 $aUNINA