SIP Status Reports

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Status of Ohio Designated Areas

Ohio Areas by NAAQS
As of 12/01/2020

Jump to Ohio section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)


Ohio CO (1971) Areas    Return to map
 
Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Cleveland Area Maintenance 11/15/1990 Moderate <= 12.7ppm 1,280,122 2019 3.1 Yes 4 / 4  
 
10/16/1992 03/07/1994
59 FR 5332

Ohio Lead (1978) Areas     Return to map Top of page

No designated areas for this pollutant.

Ohio Lead (2008) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(µg/m3)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Bellefontaine Maintenance 12/31/2010   6,220 2017-2019   Insufficient Data 6 / 1 01/06/2014
78 FR 66280
10/29/2013 09/26/2014
79 FR 43655
Cleveland Maintenance 12/31/2010   7,816 2017-2019 0.02 Yes 6 / 1 07/27/2015
80 FR 29964
06/29/2016 07/31/2017
82 FR 24871
Delta Maintenance 12/31/2010   3,243 2017-2019 0.11 Yes 6 / 1 07/27/2015
80 FR 29964
04/27/2017 03/13/2018
83 FR 10796

Ohio NO2 (1971) Areas     Return to map Top of page

No designated areas for this pollutant.

Ohio Ozone-1Hr (1979) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Canton Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 375,586 2017-2019 0.081 Yes 5 / 5  
 
03/25/1994 04/01/1996
61 FR 3319
Cincinnati-Hamilton Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 1,580,560 2017-2019 0.090 Yes 22 / 10  
 
11/15/1994 06/14/2005
70 FR 35946
Cleveland-Akron-Lorain Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 2,881,937 2017-2019 0.086 Yes 23 / 23  
 
11/15/1994 05/07/1996
61 FR 20458
Clinton County Area Maintenance (NAAQS revoked) 11/15/1990 Transitional 42,040 2017-2019 0.079 Yes 1 / 1  
 
11/15/1994 03/21/1996
61 FR 11560
Columbus Area Maintenance (NAAQS revoked) 01/06/1992 Marginal 1,504,120 2017-2019 0.076 Yes 4 / 4  
 
01/14/1994 04/01/1996
61 FR 3591
Dayton-Springfield Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 937,565 2017-2019 0.084 Yes 23 / 23  
 
11/01/1993 07/05/1995
60 FR 22289
Preble County Area Maintenance (NAAQS revoked) 11/15/1990 Transitional 42,270 2017-2019 0.074 Yes 1 / 1  
 
04/01/1994 03/10/1995
60 FR 7453
Steubenville Area Maintenance (NAAQS revoked) 11/15/1990 Transitional 69,709 2017-2019 0.077 Yes 1 / 1  
 
04/01/1994 03/10/1995
60 FR 7453
Toledo Area Maintenance (NAAQS revoked) 11/15/1990 Moderate 567,303 2017-2019 0.089 Yes 23 / 23  
 
09/01/1993 08/01/1995
60 FR 39115
Youngstown-Warren-Sharon Area Maintenance (NAAQS revoked) 11/15/1990 Marginal 449,135 2017-2019 0.078 Yes 5 / 5  
 
08/15/1994 04/01/1996
61 FR 3319

Ohio Ozone-8Hr (1997) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Canton-Massillon Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 375,586 2017-2019 0.067 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27647
Cincinnati-Hamilton Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,622,600 2017-2019 0.074 Yes 4 / 1 05/11/2010
75 FR 26118
12/14/2009 05/11/2010
75 FR 26118
Cleveland-Akron-Lorain Area Maintenance (NAAQS revoked) 06/15/2004 Subpart 2/Moderate 2,881,937 2017-2019 0.073 Yes 53 / 47 09/15/2009
74 FR 47414
03/17/2009 09/15/2009
74 FR 47414
Columbus Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 1,754,632 2017-2019 0.068 Yes 4 / 0 09/15/2009
74 FR 47404
03/17/2009 09/15/2009
74 FR 47404
Dayton-Springfield Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 937,565 2017-2019 0.069 Yes 4 / 0  
 
11/06/2006 08/13/2007
72 FR 45169
Lima Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 106,331 2017-2019 0.069 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27647
Parkersburg-Marietta Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 61,778 2017-2019 0.063 Yes 4 / 0  
 
11/17/2006 06/15/2007
72 FR 27651
Steubenville-Weirton Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 69,709 2017-2019 0.062 Yes 4 / 0  
 
10/03/2006 06/15/2007
72 FR 27639
Toledo Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 567,303 2017-2019 0.070 Yes 4 / 0  
 
12/22/2006 08/09/2007
72 FR 44784
Wheeling Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 70,400 2017-2019 0.063 Yes 4 / 0  
 
08/24/2006 06/15/2007
72 FR 27643
Youngstown-Warren-Sharon Area Maintenance (NAAQS revoked) 06/15/2004 Former Subpart 1 556,976 2017-2019 0.067 Yes 4 / 0  
 
12/04/2006 06/12/2007
72 FR 32190

Ohio Ozone-8Hr (2008) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Cincinnati Maintenance 07/20/2012 Marginal 1,622,600 2017-2019 0.074 Yes 3 / 3 06/03/2016
81 FR 26697
04/21/2016 12/16/2016
81 FR 91035
Cleveland-Akron-Lorain Maintenance 07/20/2012 Marginal 2,881,937 2017-2019 0.073 Yes 3 / 3 08/26/2016
81 FR 41444
07/06/2016 01/06/2017
82 FR 1603
Columbus Maintenance 07/20/2012 Marginal 1,754,632 2017-2019 0.068 Yes 3 / 3 06/03/2016
81 FR 26697
06/16/2016 12/21/2016
81 FR 93631

Ohio Ozone-8Hr (2015) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(ppm)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Cincinnati Nonattainment 08/03/2018 Marginal 1,580,560 2017-2019 0.074 No 3 / 0  
 
   
Cleveland Nonattainment 08/03/2018 Marginal 2,780,440 2017-2019 0.073 No 3 / 0  
 
   
Columbus Maintenance 08/03/2018 Marginal 1,650,276 2017-2019 0.068 Yes 3 / 0 08/21/2019
84 FR 43508
04/23/2019 08/21/2019
84 FR 43508

Ohio PM-10 (1987) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Average
Estimated
Exceedances
(est. exc.)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Cuyahoga County Maintenance 11/15/1990 Moderate 1,280,122 2017-2019 0.0 Yes 3 / 3  
 
05/22/2000 01/10/2001
65 FR 77308
Jefferson County; (part) Maintenance 11/15/1990 Moderate 3,472 2017-2019   No Data 3 / 3  
 
05/22/2000 01/10/2001
65 FR 77308

Ohio PM-2.5 (1997) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(µg/m3)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Canton-Massillon Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 375,586 2017-2019 9.3 Yes 5 / 1 10/22/2013
78 FR 62459
06/18/2012 10/22/2013
78 FR 62459
Cincinnati-Hamilton Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 1,580,560 2017-2019 11.8 Yes 8 / 3 10/31/2011
76 FR 60373
07/22/2016 04/07/2017
82 FR 16938
Cleveland-Akron-Lorain Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 2,709,565 2017-2019 11.0 Yes 5 / 1 10/14/2011
76 FR 56641
10/05/2011 09/18/2013
78 FR 57270
Columbus Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 1,651,811 2017-2019 9.2 Yes 5 / 1 10/14/2011
76 FR 56641
06/03/2011 11/07/2013
78 FR 66845
Dayton-Springfield Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 835,059 2017-2019 9.2 Yes 5 / 1 10/14/2011
76 FR 56641
06/01/2011 09/26/2013
78 FR 59258
Huntington-Ashland Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 149,579 2017-2019 7.5 Yes 5 / 1 10/07/2011
76 FR 55542
05/04/2011 12/31/2012
77 FR 76883
Parkersburg-Marietta Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 61,778 2017-2019 7.9 Yes 5 / 1 01/03/2012
76 FR 75464
02/29/2012 08/29/2013
78 FR 53275
Steubenville-Weirton Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 69,709 2017-2019 9.2 Yes 5 / 1 10/14/2011
76 FR 56641
04/16/2012 09/18/2013
78 FR 57273
Wheeling Maintenance (NAAQS revoked) 04/05/2005 Former Subpart 1 70,400 2017-2019 9.2 Yes 5 / 1 01/03/2012
76 FR 75464
04/16/2012 08/29/2013
78 FR 53275

Ohio PM-2.5 (2006) Areas    Return to map
Area designated nonattainment for the 24-hour standard     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
24-Hr
(µg/m3)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Canton-Massillon Maintenance 12/14/2009 Former Subpart 1 375,586 2017-2019 21 Yes 6 / 0  
 
06/18/2012 10/22/2013
78 FR 62459
Cleveland-Akron-Lorain Maintenance 12/14/2009 Former Subpart 1 2,687,051 2017-2019 24 Yes 6 / 0  
 
05/30/2012 09/18/2013
78 FR 57270
Steubenville-Weirton Maintenance 12/14/2009 Former Subpart 1 69,709 2017-2019 21 Yes 6 / 0 06/13/2012
77 FR 28264
05/25/2012 09/18/2013
78 FR 57273

Ohio PM-2.5 (2012) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual
(µg/m3)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Cleveland Maintenance 04/15/2015 Moderate 1,581,478 2017-2019 11.0 Yes 7 / 6  
 
07/24/2018 04/12/2019
84 FR 14881

Ohio SO2 (1971) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
Design Value
Annual/24-Hr
(ppb)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Coshocton County; Franklin Township Maintenance 10/05/1978   1,229     /     1 / 1  
 
10/26/1995 07/05/2000
65 FR 35577
Cuyahoga County (part) Maintenance 10/05/1978   996,159     /     1 / 1  
 
09/27/2003 02/28/2005
70 FR 4023
Gallia County; Addison Township Maintenance 10/05/1978   2,197     /     1 / 1  
 
10/26/1995 07/05/2000
65 FR 35577
Jefferson County; (part) Steubenville & Mingo Junction Maintenance 10/05/1978   69,712     /     1 / 1  
 
08/24/1998 09/29/1999
64 FR 47113
Lake County; (part) Eastlake, Timberlake, Lakeline, Willoughby, Mentor Maintenance 10/05/1978   229,760     /     1 / 1  
 
08/20/1998 09/29/1999
64 FR 47113
Lorain County (part) Maintenance 10/05/1978   301,074     /     1 / 1  
 
10/26/1995 07/05/2000
65 FR 35577
Lucas County (part) Maintenance 10/05/1978   441,812     /     1 / 1  
 
03/30/1999 03/18/2004
69 FR 4856
Morgan County: Center Township Maintenance 10/05/1978   15,053     /     0 / 0  
 
08/06/1992 10/21/1994
59 FR 48403
Washington County: Waterford Township Maintenance 10/05/1978   61,777     /     0 / 0  
 
08/06/1992 10/21/1994
59 FR 48403

Ohio SO2 (2010) Areas    Return to map     Top of page

Click on the Area name
to view SIP Required Elements


Area
Status Designation
Date
Classification 2010
Population
(state portion)
Meets NAAQS
Basis
3 Year
1-⁠Hour
Design Value
(ppb)
(entire area)
Meets
NAAQS
SIP
Requirements
Original/
Approved
Clean Air
Determination
Citation
Effective Date
Click to view
FR notice
Redesignation
Request Date
Redesignation
Citation
Effective Date
Click to view
FR notice
Campbell-Clermont Counties Maintenance 10/04/2013   14,349 2017-2019 11 Yes 6 / 5  
 
08/11/2015 11/21/2016
81 FR 83158
Lake County Maintenance 10/04/2013   230,041 2017-2019 33 Yes 6 / 5  
 
04/09/2018 05/14/2019
84 FR 21253
Muskingum River Nonattainment 10/04/2013   4,456 2017-2019   Insufficient Data 6 / 0  
 
   
Steubenville Maintenance 10/04/2013   38,854 2017-2019 46 Yes 6 / 6  
 
06/25/2019 11/29/2019
84 FR 65683
We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.