Minnesota Nonattainment/Maintenance Status for Each County by Year for All Criteria Pollutants
Data is current as of September 30, 2024
Listed by County, NAAQS, Area. The 8-hour Ozone (1997) standard was revoked on April 6, 2015 and the 1-hour Ozone (1979) standard was revoked on June 15, 2005.
* The 1997 Primary Annual PM-2.5 NAAQS (level of 15 µg/m3) is revoked in attainment and maintenance areas for that NAAQS.
For additional information see the PM-2.5 NAAQS SIP Requirements Final Rule, effective October 24, 2016.
(81 FR 58009)
Important Notes
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County |
NAAQS |
Area Name |
Nonattainment in Year |
Redesignation to Maintenance |
Classification |
Whole or/ Part County |
Population (2010) |
State/ County FIPS Codes |
MINNESOTA |
Anoka County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Whole |
330,844 |
27/003 |
Anoka County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
330,844 |
27/003 |
Carver County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Part |
77,969 |
27/019 |
Carver County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
91,042 |
27/019 |
Dakota County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Part |
380,675 |
27/037 |
Dakota County |
Lead (1978) |
Dakota County, MN |
| 12/19/1994 |
|
Part |
318,833 |
27/037 |
Dakota County |
Lead (2008) |
Eagan, MN |
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10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
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Part |
8,997 |
27/037 |
Dakota County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
398,552 |
27/037 |
Hennepin County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Whole |
1,152,425 |
27/053 |
Hennepin County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
1,152,425 |
27/053 |
Olmsted County |
PM-10 (1987) |
Olmsted County, MN |
| 07/31/1995 |
Moderate |
Part |
96,199 |
27/109 |
Olmsted County |
Sulfur Dioxide (1971) |
Olmsted County; City of Rochester, MN |
92 |
93 |
94 |
95 |
96 |
97 |
98 |
99 |
00 |
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| 05/08/2001 |
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Part |
106,769 |
27/109 |
Ramsey County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Whole |
508,640 |
27/123 |
Ramsey County |
PM-10 (1987) |
Ramsey County, MN |
92 |
93 |
94 |
95 |
96 |
97 |
98 |
99 |
00 |
01 |
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| 09/24/2002 |
Moderate |
Part |
284,783 |
27/123 |
Ramsey County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
508,640 |
27/123 |
Scott County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Part |
119,772 |
27/139 |
Scott County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
129,928 |
27/139 |
St. Louis County |
Carbon Monoxide (1971) |
Duluth, MN |
| 06/13/1994 |
Moderate <= 12.7ppm |
Part |
85,857 |
27/137 |
Washington County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Part |
236,399 |
27/163 |
Washington County |
Sulfur Dioxide (1971) |
Minneapolis-St. Paul, MN |
| 07/14/1997 |
|
Whole |
238,136 |
27/163 |
Wright County |
Carbon Monoxide (1971) |
Minneapolis-St. Paul, MN |
| 11/29/1999 |
Moderate <= 12.7ppm |
Part |
113,454 |
27/171 |
Important Notes
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