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PM-2.5 (1997) Maintenance Areas (Redesignated from Nonattainment)

As of October 01, 2015    |   * Design Value (DV) notes
Current and historical design value data can be found at http://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Design Values
at Designation
Classification No.
Counties
NAA
2010
Population
EPA
Region
State
(2001-2003)
(ug/m3)
Baltimore, MD 16.7 Moderate 6 2,662,691    3 MD
Birmingham, AL 18.0 Former Subpart 1 3 857,680    4 AL
Canton-Massillon, OH 17.3 Former Subpart 1 1 375,586    5 OH
Charleston, WV 17.1 Former Subpart 1 2 248,549    3 WV
Chattanooga, TN-GA-AL 16.1 Moderate 4 470,921    4-4-4 AL-TN-GA
Chicago-Gary-Lake County, IL-IN 17.7 Former Subpart 1 10 9,049,894    5-5 IL-IN
Cincinnati-Hamilton, OH-KY-IN 17.8 Former Subpart 1 8 1,962,943    5-4-5 OH-KY-IN
Cleveland-Akron-Lorain, OH 18.3 Former Subpart 1 7 2,709,565    5 OH
Columbus, OH 16.7 Former Subpart 1 5 1,651,811    5 OH
Dayton-Springfield, OH 15.2 Former Subpart 1 3 835,059    5 OH
Detroit-Ann Arbor, MI 19.5 Former Subpart 1 7 4,704,743    5 MI
Evansville, IN 16.2 Former Subpart 1 6 296,995    5 IN
Greensboro-Winston Salem-High Point, NC 15.8 Former Subpart 1 2 651,284    4 NC
Harrisburg-Lebanon-Carlisle, PA 15.8 Moderate 3 637,074    3 PA
Hickory-Morganton-Lenoir, NC 15.5 Former Subpart 1 1 154,358    4 NC
Huntington-Ashland, WV-KY-OH 17.2 Former Subpart 1 9 343,182    3-4-5 WV-KY-OH
Indianapolis, IN 16.7 Former Subpart 1 5 1,531,958    5 IN
Johnstown, PA 15.8 Moderate 2 156,923    3 PA
Lancaster, PA 17.0 Moderate 1 519,445    3 PA
Macon, GA 15.2 Former Subpart 1 2 158,123    4 GA
Martinsburg, WV-Hagerstown, MD 16.3 Moderate 2 251,599    3-3 WV-MD
New York-N. New Jersey-Long Island, NY-NJ-CT 17.7 Former Subpart 1 22 20,404,481    2-2-1 NY-NJ-CT
Parkersburg-Marietta, WV-OH 16.0 Former Subpart 1 3 150,316    3-5 WV-OH
Philadelphia-Wilmington, PA-NJ-DE 16.4 Moderate 9 5,798,152    3-2-3 PA-NJ-DE
Reading, PA 16.4 Moderate 1 411,442    3 PA
Rome, GA 15.7 Former Subpart 1 1 96,317    4 GA
Steubenville-Weirton, OH-WV 17.8 Former Subpart 1 3 124,454    5-3 OH-WV
Washington, DC-MD-VA 15.8 Moderate 14 5,047,479    3-3-3 DC-MD-VA
Wheeling, WV-OH 15.7 Former Subpart 1 3 147,950    3-5 WV-OH
York, PA 17.3 Moderate 1 434,972    3 PA
 
30 Total Areas 146 62,845,946     

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 1997 PM-2.5 Philadelphia-Wilmington, PA-NJ-DE nonattainment area, county and population are included in the Moderate classification grouping. NJ was classified as Subpart 1 at redesignation (effective September 4, 2013, 78 FR 54396), while PA and DE were classified as Moderate at redesignation. DE was redesignated effective September 4, 2014 79 FR 45350, and PA was redesignated effective April 21, 2015 80 FR 22112 .


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