Air quality reference
Evansville, IN-KY
Evansville, IN-KY has a published AQI value of 50, categorized as Good, for 2026-05-31T00:00:00+00:00. The defining parameter is Ozone, based on 4 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
- Evansville, IN-KY
- Air quality index
- 50
- Category
- Good
- Defining parameter
- Ozone
- Sites reporting
- 4
- 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 | 366.00 days | — | — |
| 2015 | 365.00 days | — | — |
| 2014 | 365.00 days | — | — |
| 2013 | 365.00 days | — | — |
| 2012 | 366.00 days | — | — |
| 2011 | 365.00 days | — | — |
| 2010 | 365.00 days | — | — |
| 2009 | 365.00 days | — | — |
| 2008 | 366.00 days | — | — |
| 2007 | 365.00 days | — | — |
| 2006 | 365.00 days | — | — |
| 2005 | 365.00 days | — | — |
| 2004 | 366.00 days | — | — |
| 2003 | 365.00 days | — | — |
| 2002 | 365.00 days | — | — |
| 2001 | 365.00 days | — | — |
| 2000 | 366.00 days | — | — |
| 1999 | 365.00 days | — | — |
| 1998 | 365.00 days | — | — |
| 1997 | 365.00 days | — | — |
| 1996 | 366.00 days | — | — |
| 1995 | 365.00 days | — | — |
| 1994 | 365.00 days | — | — |
| 1993 | 365.00 days | — | — |
| 1992 | 366.00 days | — | — |
| 1991 | 365.00 days | — | — |
| 1990 | 365.00 days | — | — |
| 1989 | 365.00 days | — | — |
| 1988 | 366.00 days | — | — |
| 1987 | 365.00 days | — | — |
| 1986 | 365.00 days | — | — |
| 1985 | 365.00 days | — | — |
| 1984 | 366.00 days | — | — |
| 1983 | 365.00 days | — | — |
| 1982 | 365.00 days | — | — |
| 1981 | 365.00 days | — | — |
| 1980 | 366.00 days | — | — |
Annual indicator
Good AQI days
85.00 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 | 85.00 days | provisional-current-year | — |
| 2025 | 210.00 days | — | — |
| 2024 | 222.00 days | — | — |
| 2023 | 148.00 days | — | — |
| 2022 | 169.00 days | — | — |
| 2021 | 176.00 days | — | — |
| 2020 | 244.00 days | — | — |
| 2019 | 209.00 days | — | — |
| 2018 | 171.00 days | — | — |
| 2017 | 139.00 days | — | — |
| 2016 | 144.00 days | — | — |
| 2015 | 111.00 days | — | — |
| 2014 | 109.00 days | — | — |
| 2013 | 117.00 days | — | — |
| 2012 | 87.00 days | — | — |
| 2011 | 129.00 days | — | — |
| 2010 | 64.00 days | — | — |
| 2009 | 122.00 days | — | — |
| 2008 | 87.00 days | — | — |
| 2007 | 78.00 days | — | — |
| 2006 | 83.00 days | — | — |
| 2005 | 60.00 days | — | — |
| 2004 | 146.00 days | — | — |
| 2003 | 137.00 days | — | — |
| 2002 | 137.00 days | — | — |
| 2001 | 188.00 days | — | — |
| 2000 | 169.00 days | — | — |
| 1999 | 193.00 days | — | — |
| 1998 | 216.00 days | — | — |
| 1997 | 237.00 days | — | — |
| 1996 | 228.00 days | — | — |
| 1995 | 222.00 days | — | — |
| 1994 | 216.00 days | — | — |
| 1993 | 240.00 days | — | — |
| 1992 | 260.00 days | — | — |
| 1991 | 210.00 days | — | — |
| 1990 | 236.00 days | — | — |
| 1989 | 212.00 days | — | — |
| 1988 | 213.00 days | — | — |
| 1987 | 198.00 days | — | — |
| 1986 | 247.00 days | — | — |
| 1985 | 209.00 days | — | — |
| 1984 | 233.00 days | — | — |
| 1983 | 214.00 days | — | — |
| 1982 | 205.00 days | — | — |
| 1981 | 202.00 days | — | — |
| 1980 | 286.00 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
92.00 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 | 92.00 AQI index | provisional-current-year | — |
| 2025 | 105.00 AQI index | — | — |
| 2024 | 122.00 AQI index | — | — |
| 2023 | 179.00 AQI index | — | — |
| 2022 | 101.00 AQI index | — | — |
| 2021 | 109.00 AQI index | — | — |
| 2020 | 112.00 AQI index | — | — |
| 2019 | 93.00 AQI index | — | — |
| 2018 | 143.00 AQI index | — | — |
| 2017 | 126.00 AQI index | — | — |
| 2016 | 151.00 AQI index | — | — |
| 2015 | 133.00 AQI index | — | — |
| 2014 | 108.00 AQI index | — | — |
| 2013 | 108.00 AQI index | — | — |
| 2012 | 164.00 AQI index | — | — |
| 2011 | 159.00 AQI index | — | — |
| 2010 | 122.00 AQI index | — | — |
| 2009 | 119.00 AQI index | — | — |
| 2008 | 143.00 AQI index | — | — |
| 2007 | 164.00 AQI index | — | — |
| 2006 | 174.00 AQI index | — | — |
| 2005 | 177.00 AQI index | — | — |
| 2004 | 147.00 AQI index | — | — |
| 2003 | 190.00 AQI index | — | — |
| 2002 | 208.00 AQI index | — | — |
| 2001 | 164.00 AQI index | — | — |
| 2000 | 169.00 AQI index | — | — |
| 1999 | 200.00 AQI index | — | — |
| 1998 | 215.00 AQI index | — | — |
| 1997 | 204.00 AQI index | — | — |
| 1996 | 195.00 AQI index | — | — |
| 1995 | 203.00 AQI index | — | — |
| 1994 | 223.00 AQI index | — | — |
| 1993 | 195.00 AQI index | — | — |
| 1992 | 182.00 AQI index | — | — |
| 1991 | 204.00 AQI index | — | — |
| 1990 | 201.00 AQI index | — | — |
| 1989 | 221.00 AQI index | — | — |
| 1988 | 221.00 AQI index | — | — |
| 1987 | 200.00 AQI index | — | — |
| 1986 | 212.00 AQI index | — | — |
| 1985 | 208.00 AQI index | — | — |
| 1984 | 187.00 AQI index | — | — |
| 1983 | 215.00 AQI index | — | — |
| 1982 | 259.00 AQI index | — | — |
| 1981 | 203.00 AQI index | — | — |
| 1980 | 154.00 AQI index | — | — |
Annual indicator
Median daily AQI
47.00 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 | 47.00 AQI index | provisional-current-year | — |
| 2025 | 47.00 AQI index | — | — |
| 2024 | 46.00 AQI index | — | — |
| 2023 | 52.00 AQI index | — | — |
| 2022 | 51.00 AQI index | — | — |
| 2021 | 51.00 AQI index | — | — |
| 2020 | 44.00 AQI index | — | — |
| 2019 | 48.00 AQI index | — | — |
| 2018 | 52.00 AQI index | — | — |
| 2017 | 53.00 AQI index | — | — |
| 2016 | 53.00 AQI index | — | — |
| 2015 | 55.00 AQI index | — | — |
| 2014 | 56.00 AQI index | — | — |
| 2013 | 55.00 AQI index | — | — |
| 2012 | 58.00 AQI index | — | — |
| 2011 | 56.00 AQI index | — | — |
| 2010 | 61.00 AQI index | — | — |
| 2009 | 55.00 AQI index | — | — |
| 2008 | 57.00 AQI index | — | — |
| 2007 | 60.00 AQI index | — | — |
| 2006 | 60.00 AQI index | — | — |
| 2005 | 61.00 AQI index | — | — |
| 2004 | 56.00 AQI index | — | — |
| 2003 | 55.00 AQI index | — | — |
| 2002 | 55.00 AQI index | — | — |
| 2001 | 49.00 AQI index | — | — |
| 2000 | 54.00 AQI index | — | — |
| 1999 | 48.00 AQI index | — | — |
| 1998 | 42.00 AQI index | — | — |
| 1997 | 41.00 AQI index | — | — |
| 1996 | 44.00 AQI index | — | — |
| 1995 | 42.00 AQI index | — | — |
| 1994 | 44.00 AQI index | — | — |
| 1993 | 43.00 AQI index | — | — |
| 1992 | 43.00 AQI index | — | — |
| 1991 | 44.00 AQI index | — | — |
| 1990 | 42.00 AQI index | — | — |
| 1989 | 46.00 AQI index | — | — |
| 1988 | 44.00 AQI index | — | — |
| 1987 | 47.00 AQI index | — | — |
| 1986 | 42.00 AQI index | — | — |
| 1985 | 46.00 AQI index | — | — |
| 1984 | 44.00 AQI index | — | — |
| 1983 | 46.00 AQI index | — | — |
| 1982 | 47.00 AQI index | — | — |
| 1981 | 48.00 AQI index | — | — |
| 1980 | 37.00 AQI index | — | — |
Annual indicator
Moderate AQI days
66.00 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 | 66.00 days | provisional-current-year | — |
| 2025 | 154.00 days | — | — |
| 2024 | 142.00 days | — | — |
| 2023 | 208.00 days | — | — |
| 2022 | 195.00 days | — | — |
| 2021 | 187.00 days | — | — |
| 2020 | 119.00 days | — | — |
| 2019 | 156.00 days | — | — |
| 2018 | 190.00 days | — | — |
| 2017 | 222.00 days | — | — |
| 2016 | 217.00 days | — | — |
| 2015 | 248.00 days | — | — |
| 2014 | 251.00 days | — | — |
| 2013 | 245.00 days | — | — |
| 2012 | 246.00 days | — | — |
| 2011 | 221.00 days | — | — |
| 2010 | 282.00 days | — | — |
| 2009 | 238.00 days | — | — |
| 2008 | 269.00 days | — | — |
| 2007 | 240.00 days | — | — |
| 2006 | 256.00 days | — | — |
| 2005 | 260.00 days | — | — |
| 2004 | 208.00 days | — | — |
| 2003 | 200.00 days | — | — |
| 2002 | 175.00 days | — | — |
| 2001 | 147.00 days | — | — |
| 2000 | 162.00 days | — | — |
| 1999 | 115.00 days | — | — |
| 1998 | 90.00 days | — | — |
| 1997 | 86.00 days | — | — |
| 1996 | 85.00 days | — | — |
| 1995 | 76.00 days | — | — |
| 1994 | 76.00 days | — | — |
| 1993 | 87.00 days | — | — |
| 1992 | 83.00 days | — | — |
| 1991 | 71.00 days | — | — |
| 1990 | 73.00 days | — | — |
| 1989 | 101.00 days | — | — |
| 1988 | 75.00 days | — | — |
| 1987 | 90.00 days | — | — |
| 1986 | 89.00 days | — | — |
| 1985 | 110.00 days | — | — |
| 1984 | 103.00 days | — | — |
| 1983 | 82.00 days | — | — |
| 1982 | 108.00 days | — | — |
| 1981 | 131.00 days | — | — |
| 1980 | 67.00 days | — | — |
Annual indicator
90th percentile daily AQI
65.00 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 | 65.00 AQI index | provisional-current-year | — |
| 2025 | 64.00 AQI index | — | — |
| 2024 | 62.00 AQI index | — | — |
| 2023 | 71.00 AQI index | — | — |
| 2022 | 66.00 AQI index | — | — |
| 2021 | 69.00 AQI index | — | — |
| 2020 | 62.00 AQI index | — | — |
| 2019 | 61.00 AQI index | — | — |
| 2018 | 69.00 AQI index | — | — |
| 2017 | 67.00 AQI index | — | — |
| 2016 | 71.00 AQI index | — | — |
| 2015 | 73.00 AQI index | — | — |
| 2014 | 77.00 AQI index | — | — |
| 2013 | 73.00 AQI index | — | — |
| 2012 | 97.00 AQI index | — | — |
| 2011 | 86.00 AQI index | — | — |
| 2010 | 87.00 AQI index | — | — |
| 2009 | 76.00 AQI index | — | — |
| 2008 | 80.00 AQI index | — | — |
| 2007 | 108.00 AQI index | — | — |
| 2006 | 93.00 AQI index | — | — |
| 2005 | 108.00 AQI index | — | — |
| 2004 | 85.00 AQI index | — | — |
| 2003 | 97.00 AQI index | — | — |
| 2002 | 119.00 AQI index | — | — |
| 2001 | 94.00 AQI index | — | — |
| 2000 | 100.00 AQI index | — | — |
| 1999 | 119.00 AQI index | — | — |
| 1998 | 119.00 AQI index | — | — |
| 1997 | 105.00 AQI index | — | — |
| 1996 | 112.00 AQI index | — | — |
| 1995 | 126.00 AQI index | — | — |
| 1994 | 129.00 AQI index | — | — |
| 1993 | 101.00 AQI index | — | — |
| 1992 | 87.00 AQI index | — | — |
| 1991 | 151.00 AQI index | — | — |
| 1990 | 112.00 AQI index | — | — |
| 1989 | 115.00 AQI index | — | — |
| 1988 | 159.00 AQI index | — | — |
| 1987 | 140.00 AQI index | — | — |
| 1986 | 97.00 AQI index | — | — |
| 1985 | 105.00 AQI index | — | — |
| 1984 | 93.00 AQI index | — | — |
| 1983 | 129.00 AQI index | — | — |
| 1982 | 112.00 AQI index | — | — |
| 1981 | 94.00 AQI index | — | — |
| 1980 | 71.00 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 | 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 | 1.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 0.00 days | — | — |
| 2013 | 0.00 days | — | — |
| 2012 | 4.00 days | — | — |
| 2011 | 1.00 days | — | — |
| 2010 | 0.00 days | — | — |
| 2009 | 0.00 days | — | — |
| 2008 | 0.00 days | — | — |
| 2007 | 9.00 days | — | — |
| 2006 | 3.00 days | — | — |
| 2005 | 2.00 days | — | — |
| 2004 | 0.00 days | — | — |
| 2003 | 4.00 days | — | — |
| 2002 | 18.00 days | — | — |
| 2001 | 1.00 days | — | — |
| 2000 | 3.00 days | — | — |
| 1999 | 20.00 days | — | — |
| 1998 | 12.00 days | — | — |
| 1997 | 15.00 days | — | — |
| 1996 | 15.00 days | — | — |
| 1995 | 22.00 days | — | — |
| 1994 | 15.00 days | — | — |
| 1993 | 8.00 days | — | — |
| 1992 | 1.00 days | — | — |
| 1991 | 32.00 days | — | — |
| 1990 | 18.00 days | — | — |
| 1989 | 14.00 days | — | — |
| 1988 | 24.00 days | — | — |
| 1987 | 26.00 days | — | — |
| 1986 | 3.00 days | — | — |
| 1985 | 7.00 days | — | — |
| 1984 | 3.00 days | — | — |
| 1983 | 14.00 days | — | — |
| 1982 | 16.00 days | — | — |
| 1981 | 3.00 days | — | — |
| 1980 | 3.00 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 | 1.00 days | — | — |
| 2024 | 2.00 days | — | — |
| 2023 | 8.00 days | — | — |
| 2022 | 1.00 days | — | — |
| 2021 | 2.00 days | — | — |
| 2020 | 3.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 4.00 days | — | — |
| 2017 | 4.00 days | — | — |
| 2016 | 4.00 days | — | — |
| 2015 | 6.00 days | — | — |
| 2014 | 5.00 days | — | — |
| 2013 | 3.00 days | — | — |
| 2012 | 29.00 days | — | — |
| 2011 | 14.00 days | — | — |
| 2010 | 19.00 days | — | — |
| 2009 | 5.00 days | — | — |
| 2008 | 10.00 days | — | — |
| 2007 | 38.00 days | — | — |
| 2006 | 23.00 days | — | — |
| 2005 | 43.00 days | — | — |
| 2004 | 12.00 days | — | — |
| 2003 | 24.00 days | — | — |
| 2002 | 33.00 days | — | — |
| 2001 | 29.00 days | — | — |
| 2000 | 32.00 days | — | — |
| 1999 | 37.00 days | — | — |
| 1998 | 45.00 days | — | — |
| 1997 | 26.00 days | — | — |
| 1996 | 38.00 days | — | — |
| 1995 | 43.00 days | — | — |
| 1994 | 50.00 days | — | — |
| 1993 | 30.00 days | — | — |
| 1992 | 22.00 days | — | — |
| 1991 | 46.00 days | — | — |
| 1990 | 37.00 days | — | — |
| 1989 | 36.00 days | — | — |
| 1988 | 38.00 days | — | — |
| 1987 | 51.00 days | — | — |
| 1986 | 22.00 days | — | — |
| 1985 | 38.00 days | — | — |
| 1984 | 27.00 days | — | — |
| 1983 | 50.00 days | — | — |
| 1982 | 35.00 days | — | — |
| 1981 | 27.00 days | — | — |
| 1980 | 10.00 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 | 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 | 2.00 days | — | — |
| 2001 | 0.00 days | — | — |
| 2000 | 0.00 days | — | — |
| 1999 | 0.00 days | — | — |
| 1998 | 2.00 days | — | — |
| 1997 | 1.00 days | — | — |
| 1996 | 0.00 days | — | — |
| 1995 | 2.00 days | — | — |
| 1994 | 8.00 days | — | — |
| 1993 | 0.00 days | — | — |
| 1992 | 0.00 days | — | — |
| 1991 | 6.00 days | — | — |
| 1990 | 1.00 days | — | — |
| 1989 | 2.00 days | — | — |
| 1988 | 16.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 4.00 days | — | — |
| 1985 | 1.00 days | — | — |
| 1984 | 0.00 days | — | — |
| 1983 | 5.00 days | — | — |
| 1982 | 1.00 days | — | — |
| 1981 | 2.00 days | — | — |
| 1980 | 0.00 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.