Ozone, Carbon Monoxide, Sulfur Dioxide, and Particulate Matter in the United States

Nonattainment Areas for 8-Hour 1997 Ozone Standard	Classification and Attainment Dates for Nonattainment Areas for 8-Hour 1997 Ozone Standard
Comparison of Current 8-Hour 1997 Ozone Nonattainment Areas with Previous Nonattainment Areas	Violation Counties for 2008 8-Hour Ozone Standard (0.075 ppm) for 2006-2008
Areas with 1-Hour Standard that were Revoked on April 15, 2009	Nonattainment Areas for Current PM10 Standard
Nonattainment Areas for Current Sulfur Dioxide Standard	Nonattainment Areas for Current 8-Hour Carbon Monoxide Standard
Nonattainment Areas for the Current (1997) PM2.5 Standard	Nonattainment Areas for the Current (2006) PM2.5 Standard
Comparison of PM2.5 Violators for Annual and 24-Hour Standards Based on Annual (2005-2007) and PM2.5 24-Hour (35 ug/m3) Nonattainment Areas (2005-2007)	ASL Estimated Nonattainment Areas for a Daily PM2.5 Standard of 35 ug/m3 (441 Counties) for 2004-2005
ASL Estimated Nonattainment Areas for a Daily PM2.5 Standard of 30 ug/m3 (704 Counties)	ASL Estimated Nonattainment Areas for a Daily PM2.5 Standard of 40 ug/m3 (291 Counties)
ASL Estimated Nonattainment Areas for a Daily PM2.5 Standard of 50 ug/m3 (109 Counties)	ASL Estimated Nonattainment Areas for an Annual PM2.5 Standard of 13 ug/m3
ASL Estimated Nonattainment Areas for an Annual PM2.5 Standard of 14 ug/m3	2000-2002 County Violations of the Annual PM2.5 Standard
Canadian and U.S. 4th Highest 8-Hour Average Ozone Values for 2001-2003	Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2003-2005
Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2004-2006	Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2005-2007
Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2006-2008	Comparison of Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2001-2003, 2002-2004, and 2003-2005 Periods
Comparison of Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2002-2004, 2003-2005, and 2004-2006 Periods	Comparison of Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2003-2005, 2004-2006, and 2005-2007 Periods
Comparison of Canadian  and U.S. 4th Highest 8-Hour Average Ozone Values for 2004-2006, 2005-2007, and 2006-2008 Periods	Estimated 8-hr Nonattainment Areas for Possible 0.06 and 0.07 ppm Ozone Standards for 2003-2005
8-hr Ozone Violation Counties for 0.060, 0.065, and 0.070 ppm for 2006-2008	W126 Ozone Violation Counties for 7 and 15 ppm-hours for 2006-2008
Estimated Counties that Exceed a W126 Value of 15.0 ppm-hours for 2003- 2005 and Do Not Violate the 0.08 ppm 8-hr Ozone Standard	Example of 24-Hour W126 Ozone Exposures for April - September 2001
Violating Areas for the Originally Proposed SUM06 Ozone Secondary Standard for 1993-1995	Possible Violations for the Spatially Averaged PM2.5 15 ug/m3 Annual Standard for 1993-1995

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