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Green Book Nonattainment Areas

8-Hour Ozone (1997) Maintenance Areas (Redesignated from Nonattainment) - NAAQS Revoked

As of April 6, 2015
View Notes
The 8-Hour Ozone (1997) NAAQS was revoked effective April 6, 2015 (80 FR 12264).
Current and historical design value data can be found at https://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Design Values at
1997 Ozone Designation

(2001-2003)
(ppm)
Classification No.
Counties
NAA
2010
Population
EPA
Region
State
1997 8-hr Ozone 1979 1-hr Ozone
Allegan Co, MI 0.097 0.115 Former Subpart 1 1 111,408 5 MI
Allentown-Bethlehem-Easton, PA 0.091 0.114 Former Subpart 1 3 712,481 3 PA
Altoona, PA 0.085 0.107 Former Subpart 1 1 127,089 3 PA
Atlanta, GA 0.091 0.125 Moderate 20 5,260,436 4 GA
Baton Rouge, LA 0.086 0.131 Moderate 5 732,587 6 LA
Beaumont-Port Arthur, TX 0.091 0.129 Moderate 3 388,745 6 TX
Benton Harbor, MI 0.091 0.117 Former Subpart 1 1 156,813 5 MI
Benzie Co, MI 0.088 0.116 Former Subpart 1 1 17,525 5 MI
Birmingham, AL 0.087 0.113 Former Subpart 1 2 853,551 4 AL
Boston-Manchester-Portsmouth (SE), NH 0.095 0.124 Moderate 4 740,556 1 NH
Canton-Massillon, OH 0.090 0.109 Former Subpart 1 1 375,586 5 OH
Cass Co, MI 0.093 0.124 Marginal 1 52,293 5 MI
Charleston, WV 0.086 0.107 Former Subpart 1 2 248,549 3 WV
Charlotte-Gastonia-Rock Hill, NC-SC 0.100 0.129 Moderate 8 1,968,712 4-4 NC-SC
Chicago-Gary-Lake County, IL-IN 0.101 0.134 Moderate 10 9,049,894 5-5 IL-IN
Cincinnati-Hamilton, OH-KY-IN 0.096 0.118 Former Subpart 1 9 2,004,983 5-4-5 OH-KY-IN
Clarksville-Hopkinsville, TN-KY 0.085 0.099 Former Subpart 1 2 246,286 4-4 TN-KY
Clearfield and Indiana Cos, PA 0.090 0.106 Former Subpart 1 2 170,522 3 PA
Cleveland-Akron-Lorain, OH 0.103 0.128 Moderate 8 2,881,937 5 OH
Columbus, OH 0.095 0.117 Former Subpart 1 6 1,754,632 5 OH
Dayton-Springfield, OH 0.090 0.117 Former Subpart 1 4 937,565 5 OH
Detroit-Ann Arbor, MI 0.097 0.127 Marginal 8 4,804,635 5 MI
Door Co, WI 0.094 0.113 Former Subpart 1 1 27,785 5 WI
Erie, PA 0.092 0.114 Former Subpart 1 1 280,566 3 PA
Evansville, IN 0.085 0.106 Former Subpart 1 2 239,392 5 IN
Flint, MI 0.090 0.103 Former Subpart 1 2 514,109 5 MI
Fort Wayne, IN 0.088 0.106 Former Subpart 1 1 355,329 5 IN
Franklin Co, PA 0.093 0.114 Former Subpart 1 1 149,618 3 PA
Fredericksburg, VA 0.099 0.140 Moderate 3 275,644 3 VA
Grand Rapids, MI 0.089 0.110 Former Subpart 1 2 866,423 5 MI
Greene Co, IN 0.088 0.102 Former Subpart 1 1 33,165 5 IN
Greene Co, PA 0.089 0.107 Former Subpart 1 1 38,686 3 PA
Hancock, Knox, Lincoln and Waldo Cos, ME 0.094 0.120 Former Subpart 1 4 97,265 1 ME
Harrisburg-Lebanon-Carlisle, PA 0.088 0.111 Former Subpart 1 4 683,043 3 PA
Haywood and Swain Cos (Great Smoky NP), NC 0.085 0.104 Former Subpart 1 2 4,273 4 NC
Huntington-Ashland, WV-KY 0.091 0.115 Former Subpart 1 3 188,342 3-4 WV-KY
Huron Co, MI 0.087 0.109 Former Subpart 1 1 33,118 5 MI
Indianapolis, IN 0.096 0.119 Former Subpart 1 9 1,834,672 5 IN
Jackson Co, IN 0.085 0.100 Former Subpart 1 1 42,376 5 IN
Johnstown, PA 0.087 0.106 Former Subpart 1 1 143,679 3 PA
Kalamazoo-Battle Creek, MI 0.086 0.102 Former Subpart 1 3 462,735 5 MI
Kent and Queen Anne's Cos, MD 0.095 0.122 Marginal 2 67,995 3 MD
Kewaunee Co, WI 0.093 0.110 Former Subpart 1 1 20,574 5 WI
Knoxville, TN 0.092 0.114 Former Subpart 1 7 821,883 4 TN
La Porte Co., IN 0.093 0.135 Marginal 1 111,467 5 IN
Lancaster, PA 0.092 0.124 Marginal 1 519,445 3 PA
Lansing-East Lansing, MI 0.086 0.102 Former Subpart 1 3 464,036 5 MI
Las Vegas, NV 0.086 0.107 Marginal 1 1,918,819 9 NV
Lima, OH 0.089 0.108 Former Subpart 1 1 106,331 5 OH
Louisville, KY-IN 0.092 0.120 Former Subpart 1 5 1,060,541 4-5 KY-IN
Macon, GA 0.086 0.113 Former Subpart 1 2 158,123 4 GA
Madison and Page Cos (Shenandoah NP), VA 0.087 0.104 Former Subpart 1 2 2,026 3 VA
Manitowoc Co, WI 0.090 0.110 Former Subpart 1 1 81,442 5 WI
Mason Co, MI 0.089 0.114 Former Subpart 1 1 28,705 5 MI
Memphis, TN-AR 0.092 0.126 Moderate 2 978,546 4-6 TN-AR
Milwaukee-Racine, WI 0.101 0.134 Moderate 6 1,917,742 5 WI
Muncie, IN 0.088 0.104 Former Subpart 1 1 117,671 5 IN
Murray Co (Chattahoochee Nat Forest), GA 0.085 0.103 Former Subpart 1 1 6,231 4 GA
Muskegon, MI 0.095 0.121 Marginal 1 172,188 5 MI
Norfolk-Virginia Beach-Newport News (Hampton Roads), VA 0.090 0.121 Marginal 13 1,632,100 3 VA
Parkersburg-Marietta, WV-OH 0.087 0.113 Former Subpart 1 2 148,734 3-5 WV-OH
Pechanga Band of Luiseno Mission Indians of the Pechanga Reservation 0.000 Severe 17 1 2,844 9 CA
Phoenix-Mesa, AZ 0.087 0.111 Marginal 2 3,848,627 9 AZ
Portland, ME 0.091 0.126 Marginal 4 481,641 1 ME
Raleigh-Durham-Chapel Hill, NC 0.094 0.118 Former Subpart 1 8 1,663,630 4 NC
Reading, PA 0.091 0.116 Former Subpart 1 1 411,442 3 PA
Richmond-Petersburg, VA 0.094 0.131 Marginal 9 1,042,651 3 VA
Rocky Mount, NC 0.089 0.106 Former Subpart 1 2 152,392 4 NC
San Diego, CA 0.093 0.118 Moderate 1 3,093,459 9 CA
Scranton-Wilkes-Barre, PA 0.086 0.108 Former Subpart 1 4 733,473 3 PA
South Bend-Elkhart, IN 0.093 0.116 Former Subpart 1 2 464,490 5 IN
St. Louis, MO-IL 0.092 0.122 Moderate 9 2,594,238 7-5 MO-IL
State College, PA 0.088 0.109 Former Subpart 1 1 153,990 3 PA
Steubenville-Weirton, OH-WV 0.086 0.113 Former Subpart 1 3 124,454 5-3 OH-WV
Terre Haute, IN 0.087 0.108 Former Subpart 1 1 107,848 5 IN
Tioga Co, PA 0.086 0.102 Former Subpart 1 1 41,981 3 PA
Toledo, OH 0.093 0.112 Former Subpart 1 2 567,303 5 OH
Wheeling, WV-OH 0.087 0.111 Former Subpart 1 3 147,950 3-5 WV-OH
York, PA 0.089 0.114 Former Subpart 1 2 536,379 3 PA
Youngstown-Warren-Sharon, OH-PA 0.095 0.118 Former Subpart 1 4 673,614 5-3 OH-PA
 
80 Total Areas 259 67,044,010  

Details about the designations and classifications of previous 1-Hour Ozone nonattainment and maintenance areas can be found here.

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.

On June 8, 2007, the United States Court of Appeals vacated the Subpart 1 portion of the Phase 1 Rule - Court Order. 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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