Air quality reference
South Bend-Mishawaka, IN-MI
South Bend-Mishawaka, IN-MI has a published AQI value of 21, categorized as Good, for 2026-05-31T00:00:00+00:00. The defining parameter is PM2.5, based on 1 monitoring sites. AQI is a communication index rather than a direct pollutant concentration, and values from different dates, averaging periods or providers should not be treated as interchangeable. This profile provides measurement context and same-category links but does not provide individualized medical advice.
Key facts
- Location
- South Bend-Mishawaka, IN-MI
- Air quality index
- 21
- Category
- Good
- Defining parameter
- PM2.5
- Sites reporting
- 1
- Measured at
- 2026-05-31T00:00:00+00:00
- Measurement context
- Daily AQI summary from U.S. EPA AirData; values are not direct pollutant concentrations
Historical air-quality context
Published EPA annual CBSA indicators
Annual AQI summaries are shown independently from pollutant concentrations. Current-year values are provisional because reporting is incomplete and can be revised.
Annual indicator
Days with published AQI
151.00 days2026
EPA annual CBSA summary field: Days with AQI. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 151.00 days | provisional-current-year | — |
| 2025 | 365.00 days | — | — |
| 2024 | 366.00 days | — | — |
| 2023 | 365.00 days | — | — |
| 2022 | 365.00 days | — | — |
| 2021 | 365.00 days | — | — |
| 2020 | 366.00 days | — | — |
| 2019 | 365.00 days | — | — |
| 2018 | 365.00 days | — | — |
| 2017 | 365.00 days | — | — |
| 2016 | 364.00 days | — | — |
| 2015 | 362.00 days | — | — |
| 2014 | 365.00 days | — | — |
| 2013 | 361.00 days | — | — |
| 2012 | 366.00 days | — | — |
| 2011 | 363.00 days | — | — |
| 2010 | 355.00 days | — | — |
| 2009 | 365.00 days | — | — |
| 2008 | 366.00 days | — | — |
| 2007 | 365.00 days | — | — |
| 2006 | 365.00 days | — | — |
| 2005 | 333.00 days | — | — |
| 2004 | 366.00 days | — | — |
| 2003 | 365.00 days | — | — |
| 2002 | 365.00 days | — | — |
| 2001 | 365.00 days | — | — |
| 2000 | 365.00 days | — | — |
| 1999 | 281.00 days | — | — |
| 1998 | 359.00 days | — | — |
| 1997 | 364.00 days | — | — |
| 1996 | 366.00 days | — | — |
| 1995 | 365.00 days | — | — |
| 1994 | 365.00 days | — | — |
| 1993 | 295.00 days | — | — |
| 1992 | 297.00 days | — | — |
| 1991 | 362.00 days | — | — |
| 1990 | 362.00 days | — | — |
| 1989 | 364.00 days | — | — |
| 1988 | 366.00 days | — | — |
| 1987 | 363.00 days | — | — |
| 1986 | 363.00 days | — | — |
| 1985 | 362.00 days | — | — |
| 1984 | 366.00 days | — | — |
| 1983 | 365.00 days | — | — |
| 1982 | 365.00 days | — | — |
| 1981 | 358.00 days | — | — |
| 1980 | 364.00 days | — | — |
Annual indicator
Good AQI days
111.00 days2026
EPA annual CBSA summary field: Good Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 111.00 days | provisional-current-year | — |
| 2025 | 241.00 days | — | — |
| 2024 | 237.00 days | — | — |
| 2023 | 172.00 days | — | — |
| 2022 | 167.00 days | — | — |
| 2021 | 169.00 days | — | — |
| 2020 | 200.00 days | — | — |
| 2019 | 216.00 days | — | — |
| 2018 | 171.00 days | — | — |
| 2017 | 233.00 days | — | — |
| 2016 | 179.00 days | — | — |
| 2015 | 147.00 days | — | — |
| 2014 | 156.00 days | — | — |
| 2013 | 109.00 days | — | — |
| 2012 | 111.00 days | — | — |
| 2011 | 125.00 days | — | — |
| 2010 | 97.00 days | — | — |
| 2009 | 148.00 days | — | — |
| 2008 | 221.00 days | — | — |
| 2007 | 118.00 days | — | — |
| 2006 | 244.00 days | — | — |
| 2005 | 165.00 days | — | — |
| 2004 | 240.00 days | — | — |
| 2003 | 126.00 days | — | — |
| 2002 | 118.00 days | — | — |
| 2001 | 222.00 days | — | — |
| 2000 | 222.00 days | — | — |
| 1999 | 155.00 days | — | — |
| 1998 | 238.00 days | — | — |
| 1997 | 292.00 days | — | — |
| 1996 | 270.00 days | — | — |
| 1995 | 259.00 days | — | — |
| 1994 | 269.00 days | — | — |
| 1993 | 218.00 days | — | — |
| 1992 | 225.00 days | — | — |
| 1991 | 253.00 days | — | — |
| 1990 | 281.00 days | — | — |
| 1989 | 293.00 days | — | — |
| 1988 | 269.00 days | — | — |
| 1987 | 287.00 days | — | — |
| 1986 | 300.00 days | — | — |
| 1985 | 257.00 days | — | — |
| 1984 | 279.00 days | — | — |
| 1983 | 249.00 days | — | — |
| 1982 | 241.00 days | — | — |
| 1981 | 278.00 days | — | — |
| 1980 | 275.00 days | — | — |
Annual indicator
Hazardous AQI days
0.00 days2026
EPA annual CBSA summary field: Hazardous Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 0.00 days | provisional-current-year | — |
| 2025 | 0.00 days | — | — |
| 2024 | 0.00 days | — | — |
| 2023 | 0.00 days | — | — |
| 2022 | 0.00 days | — | — |
| 2021 | 0.00 days | — | — |
| 2020 | 0.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 0.00 days | — | — |
| 2017 | 0.00 days | — | — |
| 2016 | 0.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 0.00 days | — | — |
| 2013 | 0.00 days | — | — |
| 2012 | 0.00 days | — | — |
| 2011 | 0.00 days | — | — |
| 2010 | 0.00 days | — | — |
| 2009 | 0.00 days | — | — |
| 2008 | 0.00 days | — | — |
| 2007 | 0.00 days | — | — |
| 2006 | 0.00 days | — | — |
| 2005 | 0.00 days | — | — |
| 2004 | 0.00 days | — | — |
| 2003 | 0.00 days | — | — |
| 2002 | 0.00 days | — | — |
| 2001 | 0.00 days | — | — |
| 2000 | 0.00 days | — | — |
| 1999 | 0.00 days | — | — |
| 1998 | 0.00 days | — | — |
| 1997 | 0.00 days | — | — |
| 1996 | 0.00 days | — | — |
| 1995 | 0.00 days | — | — |
| 1994 | 0.00 days | — | — |
| 1993 | 0.00 days | — | — |
| 1992 | 0.00 days | — | — |
| 1991 | 0.00 days | — | — |
| 1990 | 0.00 days | — | — |
| 1989 | 0.00 days | — | — |
| 1988 | 0.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 0.00 days | — | — |
| 1985 | 0.00 days | — | — |
| 1984 | 0.00 days | — | — |
| 1983 | 0.00 days | — | — |
| 1982 | 0.00 days | — | — |
| 1981 | 0.00 days | — | — |
| 1980 | 0.00 days | — | — |
Annual indicator
Maximum daily AQI
77.00 AQI index2026
EPA annual CBSA summary field: Max AQI. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | AQI index | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 77.00 AQI index | provisional-current-year | — |
| 2025 | 127.00 AQI index | — | — |
| 2024 | 119.00 AQI index | — | — |
| 2023 | 223.00 AQI index | — | — |
| 2022 | 122.00 AQI index | — | — |
| 2021 | 112.00 AQI index | — | — |
| 2020 | 166.00 AQI index | — | — |
| 2019 | 100.00 AQI index | — | — |
| 2018 | 133.00 AQI index | — | — |
| 2017 | 133.00 AQI index | — | — |
| 2016 | 129.00 AQI index | — | — |
| 2015 | 134.00 AQI index | — | — |
| 2014 | 129.00 AQI index | — | — |
| 2013 | 155.00 AQI index | — | — |
| 2012 | 213.00 AQI index | — | — |
| 2011 | 161.00 AQI index | — | — |
| 2010 | 128.00 AQI index | — | — |
| 2009 | 129.00 AQI index | — | — |
| 2008 | 115.00 AQI index | — | — |
| 2007 | 151.00 AQI index | — | — |
| 2006 | 133.00 AQI index | — | — |
| 2005 | 177.00 AQI index | — | — |
| 2004 | 164.00 AQI index | — | — |
| 2003 | 190.00 AQI index | — | — |
| 2002 | 216.00 AQI index | — | — |
| 2001 | 172.00 AQI index | — | — |
| 2000 | 166.00 AQI index | — | — |
| 1999 | 201.00 AQI index | — | — |
| 1998 | 195.00 AQI index | — | — |
| 1997 | 203.00 AQI index | — | — |
| 1996 | 200.00 AQI index | — | — |
| 1995 | 206.00 AQI index | — | — |
| 1994 | 202.00 AQI index | — | — |
| 1993 | 166.00 AQI index | — | — |
| 1992 | 187.00 AQI index | — | — |
| 1991 | 207.00 AQI index | — | — |
| 1990 | 159.00 AQI index | — | — |
| 1989 | 166.00 AQI index | — | — |
| 1988 | 212.00 AQI index | — | — |
| 1987 | 200.00 AQI index | — | — |
| 1986 | 150.00 AQI index | — | — |
| 1985 | 190.00 AQI index | — | — |
| 1984 | 169.00 AQI index | — | — |
| 1983 | 216.00 AQI index | — | — |
| 1982 | 185.00 AQI index | — | — |
| 1981 | 197.00 AQI index | — | — |
| 1980 | 220.00 AQI index | — | — |
Annual indicator
Median daily AQI
39.00 AQI index2026
EPA annual CBSA summary field: Median AQI. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | AQI index | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 39.00 AQI index | provisional-current-year | — |
| 2025 | 43.00 AQI index | — | — |
| 2024 | 45.00 AQI index | — | — |
| 2023 | 52.00 AQI index | — | — |
| 2022 | 52.00 AQI index | — | — |
| 2021 | 52.00 AQI index | — | — |
| 2020 | 48.00 AQI index | — | — |
| 2019 | 46.00 AQI index | — | — |
| 2018 | 51.00 AQI index | — | — |
| 2017 | 44.00 AQI index | — | — |
| 2016 | 51.00 AQI index | — | — |
| 2015 | 53.00 AQI index | — | — |
| 2014 | 53.00 AQI index | — | — |
| 2013 | 57.00 AQI index | — | — |
| 2012 | 58.00 AQI index | — | — |
| 2011 | 56.00 AQI index | — | — |
| 2010 | 58.00 AQI index | — | — |
| 2009 | 55.00 AQI index | — | — |
| 2008 | 45.00 AQI index | — | — |
| 2007 | 57.00 AQI index | — | — |
| 2006 | 41.00 AQI index | — | — |
| 2005 | 51.00 AQI index | — | — |
| 2004 | 42.00 AQI index | — | — |
| 2003 | 56.00 AQI index | — | — |
| 2002 | 56.00 AQI index | — | — |
| 2001 | 44.00 AQI index | — | — |
| 2000 | 43.00 AQI index | — | — |
| 1999 | 48.00 AQI index | — | — |
| 1998 | 36.00 AQI index | — | — |
| 1997 | 35.00 AQI index | — | — |
| 1996 | 35.00 AQI index | — | — |
| 1995 | 37.00 AQI index | — | — |
| 1994 | 35.00 AQI index | — | — |
| 1993 | 37.00 AQI index | — | — |
| 1992 | 38.00 AQI index | — | — |
| 1991 | 32.00 AQI index | — | — |
| 1990 | 32.00 AQI index | — | — |
| 1989 | 31.00 AQI index | — | — |
| 1988 | 34.00 AQI index | — | — |
| 1987 | 33.00 AQI index | — | — |
| 1986 | 33.00 AQI index | — | — |
| 1985 | 38.00 AQI index | — | — |
| 1984 | 35.00 AQI index | — | — |
| 1983 | 39.00 AQI index | — | — |
| 1982 | 43.00 AQI index | — | — |
| 1981 | 34.00 AQI index | — | — |
| 1980 | 30.00 AQI index | — | — |
Annual indicator
Moderate AQI days
40.00 days2026
EPA annual CBSA summary field: Moderate Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 40.00 days | provisional-current-year | — |
| 2025 | 117.00 days | — | — |
| 2024 | 127.00 days | — | — |
| 2023 | 180.00 days | — | — |
| 2022 | 192.00 days | — | — |
| 2021 | 195.00 days | — | — |
| 2020 | 159.00 days | — | — |
| 2019 | 149.00 days | — | — |
| 2018 | 186.00 days | — | — |
| 2017 | 125.00 days | — | — |
| 2016 | 175.00 days | — | — |
| 2015 | 212.00 days | — | — |
| 2014 | 205.00 days | — | — |
| 2013 | 246.00 days | — | — |
| 2012 | 228.00 days | — | — |
| 2011 | 225.00 days | — | — |
| 2010 | 245.00 days | — | — |
| 2009 | 210.00 days | — | — |
| 2008 | 141.00 days | — | — |
| 2007 | 228.00 days | — | — |
| 2006 | 113.00 days | — | — |
| 2005 | 129.00 days | — | — |
| 2004 | 113.00 days | — | — |
| 2003 | 210.00 days | — | — |
| 2002 | 200.00 days | — | — |
| 2001 | 113.00 days | — | — |
| 2000 | 128.00 days | — | — |
| 1999 | 83.00 days | — | — |
| 1998 | 79.00 days | — | — |
| 1997 | 45.00 days | — | — |
| 1996 | 62.00 days | — | — |
| 1995 | 66.00 days | — | — |
| 1994 | 60.00 days | — | — |
| 1993 | 54.00 days | — | — |
| 1992 | 50.00 days | — | — |
| 1991 | 47.00 days | — | — |
| 1990 | 59.00 days | — | — |
| 1989 | 57.00 days | — | — |
| 1988 | 51.00 days | — | — |
| 1987 | 46.00 days | — | — |
| 1986 | 51.00 days | — | — |
| 1985 | 66.00 days | — | — |
| 1984 | 52.00 days | — | — |
| 1983 | 50.00 days | — | — |
| 1982 | 80.00 days | — | — |
| 1981 | 46.00 days | — | — |
| 1980 | 36.00 days | — | — |
Annual indicator
90th percentile daily AQI
59.00 AQI index2026
EPA annual CBSA summary field: 90th Percentile AQI. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | AQI index | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 59.00 AQI index | provisional-current-year | — |
| 2025 | 71.00 AQI index | — | — |
| 2024 | 64.00 AQI index | — | — |
| 2023 | 74.00 AQI index | — | — |
| 2022 | 73.00 AQI index | — | — |
| 2021 | 71.00 AQI index | — | — |
| 2020 | 67.00 AQI index | — | — |
| 2019 | 67.00 AQI index | — | — |
| 2018 | 67.00 AQI index | — | — |
| 2017 | 66.00 AQI index | — | — |
| 2016 | 74.00 AQI index | — | — |
| 2015 | 73.00 AQI index | — | — |
| 2014 | 77.00 AQI index | — | — |
| 2013 | 77.00 AQI index | — | — |
| 2012 | 93.00 AQI index | — | — |
| 2011 | 77.00 AQI index | — | — |
| 2010 | 82.00 AQI index | — | — |
| 2009 | 79.00 AQI index | — | — |
| 2008 | 78.00 AQI index | — | — |
| 2007 | 93.00 AQI index | — | — |
| 2006 | 74.00 AQI index | — | — |
| 2005 | 105.00 AQI index | — | — |
| 2004 | 77.00 AQI index | — | — |
| 2003 | 96.00 AQI index | — | — |
| 2002 | 115.00 AQI index | — | — |
| 2001 | 97.00 AQI index | — | — |
| 2000 | 79.00 AQI index | — | — |
| 1999 | 126.00 AQI index | — | — |
| 1998 | 105.00 AQI index | — | — |
| 1997 | 90.00 AQI index | — | — |
| 1996 | 97.00 AQI index | — | — |
| 1995 | 105.00 AQI index | — | — |
| 1994 | 100.00 AQI index | — | — |
| 1993 | 90.00 AQI index | — | — |
| 1992 | 93.00 AQI index | — | — |
| 1991 | 122.00 AQI index | — | — |
| 1990 | 84.00 AQI index | — | — |
| 1989 | 77.00 AQI index | — | — |
| 1988 | 133.00 AQI index | — | — |
| 1987 | 90.00 AQI index | — | — |
| 1986 | 61.00 AQI index | — | — |
| 1985 | 101.00 AQI index | — | — |
| 1984 | 100.00 AQI index | — | — |
| 1983 | 136.00 AQI index | — | — |
| 1982 | 108.00 AQI index | — | — |
| 1981 | 100.00 AQI index | — | — |
| 1980 | 122.00 AQI index | — | — |
Annual indicator
Unhealthy AQI days
0.00 days2026
EPA annual CBSA summary field: Unhealthy Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 0.00 days | provisional-current-year | — |
| 2025 | 0.00 days | — | — |
| 2024 | 0.00 days | — | — |
| 2023 | 2.00 days | — | — |
| 2022 | 0.00 days | — | — |
| 2021 | 0.00 days | — | — |
| 2020 | 1.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 0.00 days | — | — |
| 2017 | 0.00 days | — | — |
| 2016 | 0.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 0.00 days | — | — |
| 2013 | 1.00 days | — | — |
| 2012 | 1.00 days | — | — |
| 2011 | 1.00 days | — | — |
| 2010 | 0.00 days | — | — |
| 2009 | 0.00 days | — | — |
| 2008 | 0.00 days | — | — |
| 2007 | 3.00 days | — | — |
| 2006 | 0.00 days | — | — |
| 2005 | 6.00 days | — | — |
| 2004 | 1.00 days | — | — |
| 2003 | 7.00 days | — | — |
| 2002 | 22.00 days | — | — |
| 2001 | 8.00 days | — | — |
| 2000 | 3.00 days | — | — |
| 1999 | 13.00 days | — | — |
| 1998 | 11.00 days | — | — |
| 1997 | 6.00 days | — | — |
| 1996 | 12.00 days | — | — |
| 1995 | 16.00 days | — | — |
| 1994 | 10.00 days | — | — |
| 1993 | 1.00 days | — | — |
| 1992 | 7.00 days | — | — |
| 1991 | 11.00 days | — | — |
| 1990 | 3.00 days | — | — |
| 1989 | 2.00 days | — | — |
| 1988 | 21.00 days | — | — |
| 1987 | 6.00 days | — | — |
| 1986 | 0.00 days | — | — |
| 1985 | 8.00 days | — | — |
| 1984 | 5.00 days | — | — |
| 1983 | 22.00 days | — | — |
| 1982 | 16.00 days | — | — |
| 1981 | 10.00 days | — | — |
| 1980 | 11.00 days | — | — |
Annual indicator
Unhealthy for sensitive groups days
0.00 days2026
EPA annual CBSA summary field: Unhealthy for Sensitive Groups Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 0.00 days | provisional-current-year | — |
| 2025 | 7.00 days | — | — |
| 2024 | 2.00 days | — | — |
| 2023 | 10.00 days | — | — |
| 2022 | 6.00 days | — | — |
| 2021 | 1.00 days | — | — |
| 2020 | 6.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 8.00 days | — | — |
| 2017 | 7.00 days | — | — |
| 2016 | 10.00 days | — | — |
| 2015 | 3.00 days | — | — |
| 2014 | 4.00 days | — | — |
| 2013 | 5.00 days | — | — |
| 2012 | 24.00 days | — | — |
| 2011 | 12.00 days | — | — |
| 2010 | 13.00 days | — | — |
| 2009 | 7.00 days | — | — |
| 2008 | 4.00 days | — | — |
| 2007 | 16.00 days | — | — |
| 2006 | 8.00 days | — | — |
| 2005 | 33.00 days | — | — |
| 2004 | 12.00 days | — | — |
| 2003 | 22.00 days | — | — |
| 2002 | 21.00 days | — | — |
| 2001 | 22.00 days | — | — |
| 2000 | 12.00 days | — | — |
| 1999 | 29.00 days | — | — |
| 1998 | 31.00 days | — | — |
| 1997 | 20.00 days | — | — |
| 1996 | 22.00 days | — | — |
| 1995 | 22.00 days | — | — |
| 1994 | 25.00 days | — | — |
| 1993 | 22.00 days | — | — |
| 1992 | 15.00 days | — | — |
| 1991 | 50.00 days | — | — |
| 1990 | 19.00 days | — | — |
| 1989 | 12.00 days | — | — |
| 1988 | 22.00 days | — | — |
| 1987 | 24.00 days | — | — |
| 1986 | 12.00 days | — | — |
| 1985 | 31.00 days | — | — |
| 1984 | 30.00 days | — | — |
| 1983 | 41.00 days | — | — |
| 1982 | 28.00 days | — | — |
| 1981 | 24.00 days | — | — |
| 1980 | 34.00 days | — | — |
Annual indicator
Very unhealthy AQI days
0.00 days2026
EPA annual CBSA summary field: Very Unhealthy Days. Current-year values are provisional because reporting is incomplete and can be revised. Values retain the source period and unit.
View source data
| Period | days | Source flag | Confidentiality |
|---|---|---|---|
| 2026 | 0.00 days | provisional-current-year | — |
| 2025 | 0.00 days | — | — |
| 2024 | 0.00 days | — | — |
| 2023 | 1.00 days | — | — |
| 2022 | 0.00 days | — | — |
| 2021 | 0.00 days | — | — |
| 2020 | 0.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 0.00 days | — | — |
| 2017 | 0.00 days | — | — |
| 2016 | 0.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 0.00 days | — | — |
| 2013 | 0.00 days | — | — |
| 2012 | 2.00 days | — | — |
| 2011 | 0.00 days | — | — |
| 2010 | 0.00 days | — | — |
| 2009 | 0.00 days | — | — |
| 2008 | 0.00 days | — | — |
| 2007 | 0.00 days | — | — |
| 2006 | 0.00 days | — | — |
| 2005 | 0.00 days | — | — |
| 2004 | 0.00 days | — | — |
| 2003 | 0.00 days | — | — |
| 2002 | 4.00 days | — | — |
| 2001 | 0.00 days | — | — |
| 2000 | 0.00 days | — | — |
| 1999 | 1.00 days | — | — |
| 1998 | 0.00 days | — | — |
| 1997 | 1.00 days | — | — |
| 1996 | 0.00 days | — | — |
| 1995 | 2.00 days | — | — |
| 1994 | 1.00 days | — | — |
| 1993 | 0.00 days | — | — |
| 1992 | 0.00 days | — | — |
| 1991 | 1.00 days | — | — |
| 1990 | 0.00 days | — | — |
| 1989 | 0.00 days | — | — |
| 1988 | 3.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 0.00 days | — | — |
| 1985 | 0.00 days | — | — |
| 1984 | 0.00 days | — | — |
| 1983 | 3.00 days | — | — |
| 1982 | 0.00 days | — | — |
| 1981 | 0.00 days | — | — |
| 1980 | 8.00 days | — | — |
Field-level provenance
Sources for this profile
Dates and licenses apply to the specific facts and series supplied by each source.
U.S. EPA AirData
- Applicable date
- 2026-05-31
- Dataset version
- 10350f77cf0f
- License
- U.S. federal factual data; verify third-party fields
- Attribution
- U.S. Environmental Protection Agency
U.S. EPA AirData
- Applicable date
- 2026-07-30
- Dataset version
- annual-aqi-by-cbsa-v1
- License
- U.S. federal factual data; verify third-party fields
- Attribution
- U.S. Environmental Protection Agency
DataOfWorld deterministic air-quality profile template
- Applicable date
- 2026-05-31
- Dataset version
- air-quality-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.