SIP Status Reports
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Status of Michigan Designated Areas
Status of Michigan Designated Areas
Michigan Areas by NAAQSNOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.
Jump to Michigan 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)
Michigan CO (1971) Areas Return to map |
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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 |
Detroit Area | Maintenance | 11/15/1990 | Not Classified | 1,382,239 | 2019 | 2.4 | Yes | 1 / 1 | |
03/18/1999 | 08/30/1999 64 FR 35017 |
Michigan Lead (1978) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Michigan Lead (2008) Areas Return to map Top of page |
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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 |
Belding | Maintenance | 12/31/2011 | 1,890 | 2017-2019 | 0.09 | Yes | 6 / 1 | 09/22/2015 80 FR 43956 |
01/12/2016 | 07/31/2017 82 FR 24864 |
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Michigan NO2 (1971) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Michigan Ozone-1Hr (1979) Areas Return to map Top of page |
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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 |
Detroit-Ann Arbor Area | Maintenance (NAAQS revoked) | 11/15/1990 | Moderate | 4,704,743 | 2017-2019 | 0.091 | Yes | 23 / 23 | |
11/01/1993 | 04/06/1995 60 FR 12459 |
Flint Area | Maintenance (NAAQS revoked) | 11/15/1990 | Transitional | 425,790 | 2017-2019 | 0.078 | Yes | 1 / 1 | |
05/09/2000 | 01/16/2001 65 FR 67629 |
Grand Rapids Area | Maintenance (NAAQS revoked) | 11/15/1990 | Moderate | 866,423 | 2017-2019 | 0.079 | Yes | 23 / 23 | |
03/09/1995 | 06/21/1996 61 FR 31831 |
Lansing-East Lansing Area | Maintenance (NAAQS revoked) | 11/15/1990 | Transitional | 464,036 | 2017-2019 | 0.077 | Yes | 1 / 1 | |
03/15/1996 61 FR 5707 |
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Muskegon Area | Maintenance (NAAQS revoked) | 11/15/1990 | Moderate | 172,188 | 2017-2019 | 0.091 | Yes | 23 / 23 | |
03/09/1995 | 10/18/2000 65 FR 52651 |
Michigan Ozone-8Hr (1997) Areas Return to map Top of page |
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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 |
Allegan County Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 111,408 | 2017-2019 | 0.072 | Yes | 4 / 1 | 09/24/2010 75 FR 58312 |
05/12/2010 | 09/24/2010 75 FR 58312 |
Benton Harbor Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 156,813 | 2017-2019 | 0.069 | Yes | 4 / 0 | |
06/13/2006 | 05/16/2007 72 FR 27425 |
Benzie County Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 17,525 | 2017-2019 | 0.063 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Cass County Area | Maintenance (NAAQS revoked) | 06/15/2004 | Subpart 2/Marginal | 52,293 | 2017-2019 | 0.070 | Yes | 3 / 0 | |
06/13/2006 | 05/16/2007 72 FR 27425 |
Detroit-Ann Arbor Area | Maintenance (NAAQS revoked) | 06/15/2004 | Subpart 2/Marginal | 4,804,635 | 2017-2019 | 0.072 | Yes | 3 / 2 | 06/29/2009 74 FR 30950 |
03/06/2009 | 06/29/2009 74 FR 30950 |
Flint Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 514,109 | 2017-2019 | 0.064 | Yes | 4 / 0 | |
06/13/2006 | 05/16/2007 72 FR 27425 |
Grand Rapids Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 866,423 | 2017-2019 | 0.067 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Huron County Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 33,118 | 2017-2019 | 0.064 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Kalamazoo-Battle Creek Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 462,735 | 2017-2019 | 0.066 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Lansing-East Lansing Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 464,036 | 2017-2019 | 0.063 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Mason County Area | Maintenance (NAAQS revoked) | 06/15/2004 | Former Subpart 1 | 28,705 | 2017-2019 | 0.063 | Yes | 4 / 0 | |
05/09/2006 | 05/16/2007 72 FR 27425 |
Muskegon Area | Maintenance (NAAQS revoked) | 06/15/2004 | Subpart 2/Marginal | 172,188 | 2017-2019 | 0.074 | Yes | 3 / 0 | |
06/13/2006 | 05/16/2007 72 FR 27425 |
Michigan Ozone-8Hr (2008) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Michigan Ozone-8Hr (2015) Areas Return to map Top of page |
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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 |
Allegan County | Nonattainment | 08/03/2018 | Marginal | 46,615 | 2017-2019 | 0.072 | No | 3 / 0 | |
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Berrien County | Nonattainment | 08/03/2018 | Marginal | 156,813 | 2017-2019 | 0.069 | Yes | 3 / 0 | |
01/30/2020 | |
Detroit | Nonattainment | 08/03/2018 | Marginal | 4,704,743 | 2017-2019 | 0.072 | No | 3 / 0 | |
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Muskegon County | Nonattainment | 08/03/2018 | Marginal | 146,852 | 2017-2019 | 0.074 | No | 3 / 0 | |
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Michigan PM-10 (1987) Areas Return to map Top of page |
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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 |
Wayne County; (part) | Maintenance | 11/15/1990 | Moderate | 713,777 | 2017-2019 | 0.0 | Yes | 3 / 3 | |
07/24/1995 | 10/04/1996 61 FR 40516 |
Michigan PM-2.5 (1997) Areas Return to map Top of page |
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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 |
Detroit-Ann Arbor | Maintenance (NAAQS revoked) | 04/05/2005 | Former Subpart 1 | 4,704,743 | 2017-2019 | 11.6 | Yes | 5 / 1 | 12/06/2012 77 FR 66545 |
07/05/2011 | 08/29/2013 78 FR 53272 |
Michigan PM-2.5 (2006) Areas Return to map Area designated nonattainment for the 24-hour standard Top of page |
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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 |
Detroit-Ann Arbor | Maintenance | 12/14/2009 | Former Subpart 1 | 4,704,743 | 2017-2019 | 30 | Yes | 6 / 0 | |
07/05/2011 | 08/29/2013 78 FR 53272 |
Michigan PM-2.5 (2012) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Michigan SO2 (1971) Areas Return to map Top of page |
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No designated areas for this pollutant. | |||||||||||
Michigan SO2 (2010) Areas Return to map Top of page |
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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 |
Detroit | Nonattainment | 10/04/2013 | 254,079 | 2017-2019 | 66 | Yes | 6 / 0 | |
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St. Clair | Nonattainment | 09/12/2016 | 52,102 | 2017-2019 | No Data | 6 / 0 | |
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. |