AAQS Designations

2010 FRAQMD Area Designations for State and National Ambient Air Quality Standards

Maps and Definitions of State and National Designation Categories

Pollutants	State Designations	National Designations
1-Hour Ozone	S. Sutter: Serious Nonattainment The Balance of FRAQMD: Nonattainment-Transitional*
8-Hour Ozone	Nonattainment-Transitional *	S. Sutter: Severe Nonattainment Sutter Buttes (>2000ft): Nonattainment The Balance of FRAQMD: Unclassified/Attainment
PM₁₀	Nonattainment	Unclassified
PM_2.5	Attainment**	Nonattainment (As of Dec 14, 2010)
Carbon Monoxide	Sutter County: Attainment Yuba County: Unclassified
Nitrogen Dioxide	Attainment	Unclassified/Attainment
Sulfur Dioxide	Attainment	Unclassified/Attainment
Sulfates	Attainment
Lead	Attainment
Hydrogen Sulfide	Unclassified
Visibility Reducing Particles	Unclassified

*The District has been redesignated from Nonattainment to Nonattainment-Transitional for the State designation for ozone occurs by operation of law. The change was confirmed by the CARB Board of Directors on March 25, 2010. HSC Section 40925.5.

**The District has been redesignated to attainment for the annual PM2.5 State AAQS. The change was adopted on the March 25, 2010, by the CARB Board of Directors. For more information please see here