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8-Hour Ozone (2008) Designated Area Design Values

Data is current as of June 30, 2019

8-Hour Ozone (2008) Notes Design Values in ppm. "Current Design Values" are current as of the posted Green Book date. Check the Air Quality Design Value site for design value updates.

Display:       Nonattainment and Maintenance Areas       Nonattainment Areas       Maintenance Areas
Click underlined column heading to change report order Design Values
at the Time of Designation
Current Design Values
as of 07/24/2018
(2015-2017)
 
Area Name  Design
Values
 
Monitoring
Years
 
Design Values  Meets
NAAQS
Determin.1
 
Current Status  class sort Current
Classification
or at Redesignation
 
2010
Population
 
click area name for state/county list click for
classif. history
Allentown-Bethlehem-Easton, PA 0.076 2009-2011 0.070 Yes Nonattainment F Marginal 712,481
Atlanta, GA 0.080 2009-2011 0.075 Yes Maintenance E Moderate 4,753,017
Baltimore, MD 0.089 2008-2010 0.075 Yes Nonattainment E Moderate 2,662,691
Baton Rouge, LA 0.078 2008-2010 0.070 Yes Maintenance F Marginal 732,587
Calaveras County, CA 0.077 2009-2011 0.078 No Nonattainment F Marginal 45,578
Charlotte-Rock Hill, NC-SC 0.079 2009-2011 0.070 Yes Maintenance F Marginal 1,901,424
Chicago-Naperville, IL-IN-WI 0.077 2009-2011 0.078 No Nonattainment E Moderate 9,179,738
Chico (Butte County), CA 0.079 2008-2010 0.076 No Nonattainment F Marginal 220,000
Cincinnati, OH-KY-IN 0.079 2008-2010 0.073 Yes Maintenance F Marginal 1,988,951
Cleveland-Akron-Lorain, OH 0.077 2008-2010 0.074 Yes Maintenance F Marginal 2,881,937
Columbus, OH 0.077 2008-2010 0.071 Yes Maintenance F Marginal 1,754,632
Dallas-Fort Worth, TX 0.086 2008-2010 0.079 No Nonattainment E Moderate 6,280,413
Denver-Boulder-Greeley-Ft. Collins-Loveland, CO 0.078 2008-2010 0.079 No Nonattainment E Moderate 3,330,139
Dukes County, MA 0.076 2009-2011 Insufficient Data Nonattainment F Marginal 16,535
Greater Connecticut, CT 0.079 2008-2010 0.076 No Nonattainment E Moderate 1,629,115
Houston-Galveston-Brazoria, TX 0.084 2008-2010 0.081 No Nonattainment E Moderate 5,891,999
Imperial County, CA 0.078 2008-2010 0.077 No Nonattainment E Moderate 174,528
Jamestown, NY 0.077 2008-2010 Insufficient Data Nonattainment F Marginal 134,905
Kern Co (Eastern Kern), CA 0.083 2008-2010 0.081 No Nonattainment D Serious 95,176
Knoxville, TN 0.077 2009-2011 0.067 Yes Maintenance F Marginal 573,452
Lancaster, PA 0.077 2009-2011 0.069 Yes Nonattainment F Marginal 519,445
Los Angeles-San Bernardino Counties (West Mojave Desert), CA 0.099 2008-2010 0.096 No Nonattainment C Severe 15 868,380
Los Angeles-South Coast Air Basin, CA 0.112 2008-2010 0.112 No Nonattainment A Extreme 15,719,485
Mariposa County, CA 0.077 2009-2011 0.075 Yes Nonattainment E Moderate 18,251
Memphis, TN-MS-AR 0.076 2008-2010 0.067 Yes Maintenance F Marginal 1,127,469
Morongo Band of Mission Indians 0.112 2008-2010 0.101 No Nonattainment D Serious 913
Nevada Co. (Western part), CA 0.079 2009-2011 0.087 No Nonattainment E Moderate 82,107
New York-N. New Jersey-Long Island, NY-NJ-CT 0.084 2008-2010 0.083 No Nonattainment E Moderate 20,217,137
Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation 0.096 2008-2010 Nonattainment E Moderate 2,844
Philadelphia-Wilmington-Atlantic City, PA-NJ-MD-DE 0.083 2008-2010 0.080 No Nonattainment F Marginal 7,437,135
Phoenix-Mesa, AZ 0.077 2008-2010 0.076 No Nonattainment E Moderate 3,849,627
Pittsburgh-Beaver Valley, PA 0.080 2009-2011 0.070 Yes Nonattainment F Marginal 2,356,285
Reading, PA 0.077 2009-2011 0.070 Yes Nonattainment F Marginal 411,442
Riverside Co, (Coachella Valley), CA 0.095 2008-2010 0.088 No Nonattainment C Severe 15 425,806
Sacramento Metro, CA 0.095 2009-2011 0.084 No Nonattainment C Severe 15 2,241,057
San Diego County, CA 0.082 2009-2011 0.084 No Nonattainment E Moderate 3,095,199
San Francisco Bay Area, CA 0.080 2008-2010 0.075 Yes Nonattainment F Marginal 6,973,020
San Joaquin Valley, CA 0.104 2008-2010 0.092 No Nonattainment A Extreme 3,842,365
San Luis Obispo (Eastern San Luis Obispo), CA 0.078 2009-2011 0.072 Yes Nonattainment F Marginal 1,649
Seaford, DE 0.077 2008-2010 0.067 Yes Nonattainment F Marginal 197,145
Sheboygan County, WI 0.078 2008-2010 0.080 No Nonattainment E Moderate 115,507
St. Louis-St. Charles-Farmington, MO-IL 0.077 2008-2010 0.072 Yes Maintenance F Marginal 2,571,253
Tuscan Buttes, CA 0.076 2009-2011 0.079 No Nonattainment F Marginal 0
Upper Green River Basin Area, WY 0.078 2008-2010 0.064 Yes Nonattainment F Marginal 11,498
Ventura County, CA 0.086 2008-2010 0.077 No Nonattainment D Serious 823,262
Washington, DC-MD-VA 0.081 2008-2010 Insufficient Data Nonattainment F Marginal 5,136,216

1 See the Air Quality Design Value site spreadsheet footnotes for information about "Insufficient Data" Meets NAAQS Determinations.

8-Hour Ozone (2008) Notes Design Values in ppm. "Current Design Values" are current as of the posted Green Book date. Check the Air Quality Design Value site for design value updates.


Multi-state areas are counted in maintenance totals when all states in the area have been redesignated.

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