LEADER 01667oam  2200421 a 450 
001 9910699937803321
005 20130510084505.0
035   $a(CKB)5470000002406580
035   $a(OCoLC)761956215
035   $a(EXLCZ)995470000002406580
100   $a20111122d2010      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aParticulate matter urban-focused visibility assessment$b[electronic resource] $efinal document
210  1$aResearch Triangle Park, NC :$cU.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division,$d[2010]
215   $a1 online resource (288 unnumbered pages) $cillustrations (some color), color map., charts (some color)
300   $aTitle from title screen (viewed Oct. 18, 2011).
300   $a"July 2010."
300   $a"EPA 452/R-10-004."
320   $aIncludes bibliographical references.
517   $aParticulate matter urban-focused visibility assessment 
606   $aParticles$xEnvironmental aspects$zUnited States
606   $aVisibility$xMeasurement
606   $aAir quality$xStandards$zUnited States
615  0$aParticles$xEnvironmental aspects
615  0$aVisibility$xMeasurement.
615  0$aAir quality$xStandards
712 02$aUnited States.$bEnvironmental Protection Agency.$bHealth and Environmental Impacts Division.
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910699937803321
996   $aParticulate matter urban-focused visibility assessment$93479691
997   $aUNINA