Table 3a. PM2.5 Design Value History for Previously Designated Nonattainment Areas for the PM2.5 1997 Annual NAAQS, 2001-2003 through 2011-2013 1, 2, 3

AQS Data Query: 2014-08-08 ; Last updated: 2014-08-14

Designated Area States

EPA 

Regions

2001-2003 

Design 

Value 

(μg/m3)

2002-2004 

Design 

Value 

(μg/m3) 

2003-2005 

Design 

Value 

(μg/m3) 

2004-2006 

Design 

Value 

(μg/m3) 

2005-2007 

Design 

Value 

(μg/m3)

2006-2008 

Design 

Value 

(μg/m3) 

2007-2009 

Design 

Value 

(μg/m3) 

2008-2010 

Design 

Value 

(μg/m3)

2009-2011 

Design 

Value 

(μg/m3) 

2010-2012 

Design 

Value 

(μg/m3) 

2011-2013 

Design 

Value 

(μg/m3) 

Atlanta 4 GA 4 18 17.5 17.4 17.6 17.7 15.2 13.5 12.9 13.2 12.9

Baltimore MD 3 16.5 15.3 15.9 15.9 15.6 14 12.9 11.7 11.1 11.1 10.5

Birmingham AL 4 18 17.5 18.2 18.6 18.7 17.3 15.1 13.7 12.9 13 11.9

Canton-Massillon OH 5 17.3 16.5 16.6 15.9 16.0 14.8 14.3 13.8 13.4 13 12.1

Charleston WV 3 17.1 16.4 16.6 16.4 16.6 15.4 14.4 13.2 12.5 11.9 10.8

Chicago-Gary-Lake County 4IL-IN 5 17.3 16 16.1 15.6 15.7 14.1 13.5 12.7 12.7 12.7

Cincinnati-Hamilton OH-KY-IN 4, 5 17.8 16.9 17.9 17.4 17.3 15.7 15 14.4 13.8 13.4 13.6

Cleveland-Akron-Lorain OH 5 18.3 17.6 18.1 17.2 16.8 15.1 14.4 13.6 13.1 13 12.5

Columbus OH 5 16.7 15.7 16 15 14.9 13.7 13 12.5 12.2 11.9 10.9

Dayton-Springfield OH 5 16 15.5 15.9 15.2 15.5 14.2 13.8 13.2 12.9 12.3 11

Detroit-Ann Arbor MI 5 19.5 18.6 23.1 17.2 17.2 15.4 14.1 12.3 11.6 11.5 11.3

Evansville I N 5 16.2 15.5 15.7 15 15.0 13.7 13.2 13 12.9 12.4 11.4

Greensboro-Winston-Salem-High Point N C 4 15.8 15.4 15.2 15.2 15.1 14.5 13 12.1 11.1 11.1 10.1

Harrisburg-Lebanon-Carlisle PA 3 15.7 15.4 15.8 15 14.6 13.8 13.2 12.4 12.1 11.9 12.3

Hickory-Morganton-Lenoir N C 4 15.5 15.1 15.3 15.4 15.2 14.2 12.5 11.4 10.6 10.3 9.5

Huntington-Ashland WV-KY-OH 3, 4, 5 17.2 15.8 16.3 16.1 16.6 15.2 14.3 13.1 12.1 11.6 10.4

Indianapolis I N 5 16.7 16 16.4 15.7 16.1 14.7 14.3 13.6 13.1 12.7 11.9

Johnstown PA 3 15.8 15.3 15.6 15.3 15.3 14.4 13.4 12.6 12.4 12.3 12.3

Lancaster PA 3 17 16.8 17.5 16.3 15.9 14.5 13.8 12.6 12 12.1 12

Libby MT 8 15.9 15.2 15.1 15 14.7 13.7 12.2 11.7 11.4 11.5 11.4

Liberty-Clairton PA 3 21.2 20.4 20.8 20.4 19.8 18.3 17 16 15 14.8 13.4

Los Angeles-South Coast Air Basin C A 9 27.8 24.8 22.6 20.6 20.9 20 18.8 17 16.2 15.6 15.1

Louisville 4 KY-IN 4, 5 16.9 15.9 16.4 16.2 16.6 15.3 14.6 14.1 13.5 13.2 12.1

Macon GA 4 15.2 15.5 16.1 16.8 16.6 15.1 13.5 12.8 13.4 13.1 11.8

New York-N. New Jersey-Long Island NY-NJ-CT 1, 2 17.5 16.7 17 15.7 15.9 15.5 13.9 12.5 11.9 11.8 11.2

Parkersburg-Marietta WV-OH 3, 5 16 15.2 15.4 15.3 15.4 14.6 13.7 13.1 12.3 11.8 10.4

Philadelphia-Wilmington PA-NJ-DE 2, 3 16.2 15.4 15.7 15 15.0 14.5 13.9 13.8 13.7 13.4 12.4

Pittsburgh-Beaver Valley PA 3 16.9 16.5 16.6 16.3 16.5 15.2 14.3 13.4 13.7 12.6 11.6

Reading PA 3 16.4 16.1 16.2 14.9 N V 13.9 12.6 11.1 10.7 10.9 11

Rome GA 4 15.6 15.5 16.2 16.1 16.1 14.9 13.3 12.5 12.4 12.1 10.8

San Joaquin Valley C A 9 21.8 20.6 19 18.9 20.3 21.5 22.6 21.2 18.2 19 18.1

St. Louis 4 MO-IL 5, 7 17.5 16.9 17 16.6 16.5 15.6 14 13.7 13.5 13.5

Steubenville-Weirton OH-WV 3, 5 17.8 17.6 17.2 16.4 16.4 15.4 14.4 13.7 13 12.7 11.6

Wheeling WV-OH 3, 5 15.7 15.1 15.3 15 15.2 14.2 13.4 13.1 13 12.8 11.6

York PA 3 17 16.9 17.3 16.3 16.0 14.6 13.7 12.2 11.5 11.7 11.3

Notes:

4. Due to data quality and/or completeness issues in several states, some historical design values may no longer be valid. For additional information, please see memorandums regarding Data Quality Issues Affecting Air 

Quality Designations for the 2012 PM2.5 National Ambient Air Quality Standards found in Docket No. EPA-HQ-OAR-2012-0918 .

1. The design values shown here are computed for the latest design value period using Federal Reference Method or equivalent data reported by States, Tribes, and local agencies to EPA's Air Quality System (AQS) as of 8/8/14. Data 

shown for prior design value periods were not updated from last year's design value update. Concentrations flagged by States, Tribes, and local agencies as exceptional events (e.g., high winds, wildfires, volcanic eruptions, construction) 

and concurred by the associated EPA Regional Office are not included in the calculation of these design values. Data from special purpose monitors operating less than 24 month, data identified as non-regulatory and other data judged 

by EPA as not meeting 40CFR58 monitoring requirements are not included in these design value calculations.

2. The level of the 1997 annual NAAQS for PM2.5 is 15.0 micrograms per cubic meter (ug/m3). The design value for the annual PM2.5 NAAQS is the 3-year average annual mean concentration.

3. In this table, all design values are calculated based on the rules specified in Appendix N for the 2012 PM2.5 NAAQS.
Table 3b. PM2.5 Design Value History for Previously Designated Nonattainment Areas for the PM2.5 2006 24-hour NAAQS, 2001-2003 through 2011-2013 1, 2, 3, 4

AQS Data Query: 2014-08-08 ; Last updated: 2014-08-14

Designated Area States

EPA 

Regions

2001-2003 

Design 

Value 

(μg/m3)

2002-2004 

Design 

Value 

(μg/m3)

2003-2005 

Design 

Value 

(μg/m3)

2004-2006 

Design 

Value 

(μg/m3)

2005-2007 

Design 

Value 

(μg/m3)

2006-2008 

Design 

Value 

(μg/m3)

2007-2009 

Design 

Value 

(μg/m3)

2008-2010 

Design 

Value 

(μg/m3)

2009-2011 

Design 

Value 

(μg/m3)

2010-2012 

Design 

Value 

(μg/m3)

2011-2013 

Design 

Value 

(μg/m3)

Allentown PA 3 42 39 36 37 37 36 34 32 33 32 32

Birmingham AL 4 40 40 44 44 44 39 34 29 27 26 24

Canton-Massillon OH 5 40 37 38 37 36 N V N V N V N V 29 27

Charleston WV 3 40 36 36 37 38 36 32 28 26 24 22

Chico C A 9 47 46 47 56 55 69 59 51 35 34 34

Cleveland-Akron-Lorain OH 5 46 45 47 43 42 38 36 33 N V 30 29

Detroit-Ann Arbor MI 5 44 43 47 44 43 37 35 32 32 28 26

Fairbanks AK 10 40 41 40 43 39 41 44 50 47 46 45

Harrisburg-Lebanon-Carlisle PA 3 47 45 41 38 38 36 34 33 32 31

Imperial Co 5 C A 9 46 40 39 40 42 36 21 19 38 43 42

Johnstown PA 3 41 40 39 39 39 N V 32 30 30 30 30

Klamath Falls OR 10 39 41 41 46 45 46 45 44 39 35 40

Knoxville-Sevierville-La Follette 6 T N 4 38 34 34 35 37 34 29 25 24 24

Lancaster PA 3 45 42 44 39 40 37 35 33 31 31 31

Liberty-Clairton PA 3 63 65 68 65 60 53 50 48 44 43 37

Logan UT-ID 8, 10 54 64 65 64 42 36 40 46 50 47 46

Los Angeles C A 9 72 67 65 57 55 53 49 41 39 37 38

Milwaukee-Racine WI 5 38 38 39 41 41 37 37 33 32 29 27

New York-N. New Jersey-Long Island NY-NJ-CT 1, 2 46 42 44 43 41 38 33 30 30 29

Nogales AZ 9 29 29 31 38 39 40 31 32 30 28 27

Oakridge OR 10 56 52 53 48 47 40 41 38 39 38 40

Philadelphia-Wilmington PA-NJ-DE 2, 3 43 39 39 37 38 36 32 31 30 31 30

Pittsburgh-Beaver Valley PA 3 49 52 52 45 43 39 37 35 34 33 29

Provo U T 8 45 45 43 44 45 44 50 41 42 35 46

Sacramento C A 9 51 53 54 57 62 60 61 40 35 31 36

Salt Lake City U T 8 55 54 47 49 48 46 48 45 50 38 41

San Francisco Bay Area C A 9 59 47 41 42 43 44 39 34 33 32 32

San Joaquin Valley C A 9 82 64 63 69 74 70 70 65 62 59 65

Seattle-Tacoma WA 10 40 41 40 42 43 44 46 38 35 28 32

Steubenville-Weirton OH-WV 3, 5 46 47 46 43 44 41 37 31 28 27 26

West Central Pinal County AZ 9 N V N V N V 49 N V 48 40 31 26 28 33

Yuba City-Marysville C A 9 39 34 36 40 39 47 42 36 27 26 29

Notes:

1. The level of the 2006 24-hour NAAQS for PM2.5 is 35 micrograms per cubic meter (ug/m3). The design value for the 24-hour PM2.5 NAAQS is the 3-year average 98th percentile concentration.

2. The design values shown here are computed for the latest design value period using Federal Reference Method or equivalent data reported by States, Tribes, and local agencies to EPA's Air Quality 

System (AQS) as of 8/8/14. Data shown for prior design value periods were not updated from last year's design value update. Concentrations flagged by States, Tribes, and local agencies as exceptional 

events (e.g., high winds, wildfires, volcanic eruptions, construction) and concurred by the associated EPA Regional Office are not included in the calculation of these design values. Data from special 

purpose monitors operating less than 24 month, data identified as non-regulatory and other data judged by EPA as not meeting 40CFR58 monitoring requirements are not included in these design value 

calculations.

3. In this table, all design values are calculated based on the rules specified in Appendix N for the 2012 PM2.5 NAAQS. The term 'NV' denotes design values that are not valid in accordance with the