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8-Hr Ozone (1997) Nonattainment Areas

As of July 02, 2014
View Notes
Current and historical design value data can be found at http://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Design Values
(2001-2003)
(ppm)
Classification No.
Counties
NAA
2010
Population
EPA
Region
State
8-Hr 1-Hr
Albany-Schenectady-Troy, NY 0.087 0.115   Marginal 7 970,156    2 NY
Amador and Calaveras Cos. (Central Mountain Cos.), CA 0.091 0.117   Moderate 2 83,669    9 CA
Baltimore, MD 0.103 0.143   Serious 6 2,662,691    3 MD
Boston-Lawrence-Worcester (E. Mass), MA 0.095 0.124   Moderate 10 5,723,468    1 MA
Buffalo-Niagara Falls, NY 0.099 0.116   Moderate 2 1,135,509    2 NY
Chico, CA 0.089 0.102   Marginal 1 220,000    9 CA
Dallas-Fort Worth, TX 0.100 0.135   Serious 9 6,221,286    6 TX
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO 0.087 0.114   Marginal 9 3,330,139    8 CO
Essex Co (Whiteface Mtn), NY 0.091 0.113   Marginal 1 465    2 NY
Greater Connecticut, CT 0.095 0.139   Moderate 5 1,629,115    1 CT
Houston-Galveston-Brazoria, TX 0.102 0.175   Severe 15 8 5,891,999    6 TX
Imperial Co, CA 0.087 0.142   Moderate 1 174,528    9 CA
Jamestown, NY 0.094 0.115   Moderate 1 134,905    2 NY
Jefferson Co, NY 0.097 0.121   Moderate 1 116,229    2 NY
Kern Co (Eastern Kern), CA 0.098 0.118   Moderate 1 95,314    9 CA
Los Angeles-San Bernardino Cos. (W Mojave Desert), CA 0.106 0.138   Severe 15 2 868,350    9 CA
Los Angeles-South Coast Air Basin, CA 0.131 0.180   Extreme 4 15,717,914    9 CA
Mariposa and Tuolumne Cos (Southern Mtn), CA 0.091 0.113   Moderate 2 73,616    9 CA
Morongo Band of Mission Indians 0.000   Severe 17 1 913    9 CA
Nevada Co. (Western part), CA 0.098 0.116   Moderate 1 82,393    9 CA
New York-N. New Jersey-Long Island, NY-NJ-CT 0.102 0.146   Moderate 24 20,217,137    2 2 1 NY-NJ-CT
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE 0.106 0.145   Moderate 18 7,796,590    3 2 3 3 PA-NJ-MD-DE
Phoenix-Mesa, AZ 0.087 0.111   Marginal 2 3,848,627    9 AZ
Pittsburgh-Beaver Valley, PA 0.094 0.120   Moderate 7 2,356,285    3 PA
Poughkeepsie, NY 0.094 0.126   Moderate 3 770,011    2 NY
Providence (all of RI), RI 0.095 0.130   Moderate 5 1,052,567    1 RI
Riverside Co. (Coachella Valley), CA 0.108 0.133   Severe 15 1 425,425    9 CA
Rochester, NY 0.088 0.110   Marginal 6 1,114,402    2 NY
Sacramento Metro, CA 0.107 0.143   Severe 15 6 2,243,911    9 CA
San Francisco Bay Area, CA 0.086 0.123   Marginal 9 6,970,997    9 CA
San Joaquin Valley, CA 0.115 0.151   Extreme 8 3,842,586    9 CA
Sheboygan, WI 0.100 0.124   Moderate 1 115,507    5 WI
Springfield (W. Mass), MA 0.094 0.132   Moderate 4 824,161    1 MA
St. Louis, MO-IL 0.092 0.122   Moderate 9 2,594,238    7 5 MO-IL
Sutter Co (Sutter Buttes), CA 0.088 0.113   Marginal 1 33    9 CA
Ventura Co, CA 0.095 0.124   Serious 1 823,360    9 CA
Washington, DC-MD-VA 0.099 0.140   Moderate 15 5,136,216    3 3 3 DC-MD-VA
 
37 Total Areas 188 105,264,712     

No. of Counties reflects the number of counties in an area, while the total count only counts a county once and doesn't double count the county if it is in more than area.

Multi-state areas are counted in the nonattainment report until all state areas have been redesignated.

The design value for Boston-Lawrence-Worcester (E. MA), MA was used for the classification of Boston-Manchester-Portsmouth (SE), NH. The design value for Washington, DC-MD-VA was used for the classification of Fredericksburg, VA.

8-Hr Ozone classified area designations for the 1997 standard were effective on June 15, 2004.

Thirteen (13) 8-Hr EAC areas were designated attainment on April 15, 2008.

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order) (PDF). On May 14, 2012, the Former Subpart 1 nonattainment areas were classified under Subpart 2 (77 FR 28424 ) (PDF), effective June 13, 2012.

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule (Court Order) (PDF). On May 14, 2012, the Former Subpart 1 nonattainment areas were classified under Subpart 2 (77 FR 28424 ) (PDF), effective June 13, 2012.


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