01914nam 2200409Ia 450 991069910440332120230902162040.0(CKB)5470000002400857(OCoLC)567673828(EXLCZ)99547000000240085720100323d2009 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierRisk and exposure assessment for review of the secondary national ambient air quality standards for oxides of nitrogen and oxides of sulfur[electronic resource]finalResearch Triangle Park, N.C. :U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Health and Environmental Impacts Division,2009.1 online resource (1206 unnumbered pages) illustrations (chiefly color), color mapsTitle from PDF title screen (viewed on Mar. 23, 2010)."September 2009.""EPA-452/P-09-004a.""EPA-452/P-09-004b."Includes bibliographical references.v. 1. Main content. -- v. 2. Appendices.Risk and exposure assessment for review of the secondary national ambient air quality standards for oxides of nitrogen and oxides of sulfur Nitrogen oxidesEnvironmental aspectsSulfur oxidesEnvironmental aspectsNitrogen oxidesEnvironmental aspects.Sulfur oxidesEnvironmental aspects.United States.Environmental Protection Agency.Health and Environmental Impacts Division.GPOGPOBOOK9910699104403321Risk and exposure assessment for review of the secondary national ambient air quality standards for oxides of nitrogen and oxides of sulfur3445676UNINA