Air quality reference
Little Rock-North Little Rock-Conway, AR
Little Rock-North Little Rock-Conway, AR has a published AQI value of 0, categorized as Good, for 2026-04-01T00:00:00+00:00. The defining parameter is CO, 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
- Little Rock-North Little Rock-Conway, AR
- Air quality index
- 0
- Category
- Good
- Defining parameter
- CO
- Sites reporting
- 1
- Measured at
- 2026-04-01T00:00:00+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
91.00 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 | 91.00 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
38.00 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 | 38.00 days | provisional-current-year | — |
| 2025 | 114.00 days | — | — |
| 2024 | 118.00 days | — | — |
| 2023 | 122.00 days | — | — |
| 2022 | 153.00 days | — | — |
| 2021 | 114.00 days | — | — |
| 2020 | 186.00 days | — | — |
| 2019 | 145.00 days | — | — |
| 2018 | 164.00 days | — | — |
| 2017 | 161.00 days | — | — |
| 2016 | 172.00 days | — | — |
| 2015 | 151.00 days | — | — |
| 2014 | 149.00 days | — | — |
| 2013 | 124.00 days | — | — |
| 2012 | 75.00 days | — | — |
| 2011 | 61.00 days | — | — |
| 2010 | 74.00 days | — | — |
| 2009 | 129.00 days | — | — |
| 2008 | 96.00 days | — | — |
| 2007 | 79.00 days | — | — |
| 2006 | 77.00 days | — | — |
| 2005 | 67.00 days | — | — |
| 2004 | 84.00 days | — | — |
| 2003 | 66.00 days | — | — |
| 2002 | 87.00 days | — | — |
| 2001 | 68.00 days | — | — |
| 2000 | 51.00 days | — | — |
| 1999 | 186.00 days | — | — |
| 1998 | 269.00 days | — | — |
| 1997 | 253.00 days | — | — |
| 1996 | 286.00 days | — | — |
| 1995 | 255.00 days | — | — |
| 1994 | 279.00 days | — | — |
| 1993 | 291.00 days | — | — |
| 1992 | 280.00 days | — | — |
| 1991 | 283.00 days | — | — |
| 1990 | 270.00 days | — | — |
| 1989 | 274.00 days | — | — |
| 1988 | 250.00 days | — | — |
| 1987 | 235.00 days | — | — |
| 1986 | 266.00 days | — | — |
| 1985 | 288.00 days | — | — |
| 1984 | 258.00 days | — | — |
| 1983 | 257.00 days | — | — |
| 1982 | 284.00 days | — | — |
| 1981 | 239.00 days | — | — |
| 1980 | 265.00 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
79.00 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 | 79.00 AQI index | provisional-current-year | — |
| 2025 | 138.00 AQI index | — | — |
| 2024 | 147.00 AQI index | — | — |
| 2023 | 174.00 AQI index | — | — |
| 2022 | 115.00 AQI index | — | — |
| 2021 | 112.00 AQI index | — | — |
| 2020 | 132.00 AQI index | — | — |
| 2019 | 81.00 AQI index | — | — |
| 2018 | 122.00 AQI index | — | — |
| 2017 | 115.00 AQI index | — | — |
| 2016 | 100.00 AQI index | — | — |
| 2015 | 100.00 AQI index | — | — |
| 2014 | 115.00 AQI index | — | — |
| 2013 | 108.00 AQI index | — | — |
| 2012 | 150.00 AQI index | — | — |
| 2011 | 147.00 AQI index | — | — |
| 2010 | 133.00 AQI index | — | — |
| 2009 | 150.00 AQI index | — | — |
| 2008 | 147.00 AQI index | — | — |
| 2007 | 259.00 AQI index | — | — |
| 2006 | 166.00 AQI index | — | — |
| 2005 | 169.00 AQI index | — | — |
| 2004 | 151.00 AQI index | — | — |
| 2003 | 151.00 AQI index | — | — |
| 2002 | 164.00 AQI index | — | — |
| 2001 | 156.00 AQI index | — | — |
| 2000 | 200.00 AQI index | — | — |
| 1999 | 182.00 AQI index | — | — |
| 1998 | 168.00 AQI index | — | — |
| 1997 | 151.00 AQI index | — | — |
| 1996 | 154.00 AQI index | — | — |
| 1995 | 187.00 AQI index | — | — |
| 1994 | 154.00 AQI index | — | — |
| 1993 | 156.00 AQI index | — | — |
| 1992 | 129.00 AQI index | — | — |
| 1991 | 164.00 AQI index | — | — |
| 1990 | 206.00 AQI index | — | — |
| 1989 | 161.00 AQI index | — | — |
| 1988 | 190.00 AQI index | — | — |
| 1987 | 185.00 AQI index | — | — |
| 1986 | 202.00 AQI index | — | — |
| 1985 | 174.00 AQI index | — | — |
| 1984 | 164.00 AQI index | — | — |
| 1983 | 182.00 AQI index | — | — |
| 1982 | 190.00 AQI index | — | — |
| 1981 | 174.00 AQI index | — | — |
| 1980 | 202.00 AQI index | — | — |
Annual indicator
Median daily AQI
52.00 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 | 52.00 AQI index | provisional-current-year | — |
| 2025 | 55.00 AQI index | — | — |
| 2024 | 55.00 AQI index | — | — |
| 2023 | 55.00 AQI index | — | — |
| 2022 | 52.00 AQI index | — | — |
| 2021 | 54.00 AQI index | — | — |
| 2020 | 50.00 AQI index | — | — |
| 2019 | 53.00 AQI index | — | — |
| 2018 | 52.00 AQI index | — | — |
| 2017 | 52.00 AQI index | — | — |
| 2016 | 52.00 AQI index | — | — |
| 2015 | 53.00 AQI index | — | — |
| 2014 | 53.00 AQI index | — | — |
| 2013 | 55.00 AQI index | — | — |
| 2012 | 58.00 AQI index | — | — |
| 2011 | 59.00 AQI index | — | — |
| 2010 | 60.00 AQI index | — | — |
| 2009 | 55.00 AQI index | — | — |
| 2008 | 58.00 AQI index | — | — |
| 2007 | 59.00 AQI index | — | — |
| 2006 | 60.00 AQI index | — | — |
| 2005 | 64.00 AQI index | — | — |
| 2004 | 58.00 AQI index | — | — |
| 2003 | 61.00 AQI index | — | — |
| 2002 | 59.00 AQI index | — | — |
| 2001 | 63.00 AQI index | — | — |
| 2000 | 66.00 AQI index | — | — |
| 1999 | 50.00 AQI index | — | — |
| 1998 | 40.00 AQI index | — | — |
| 1997 | 41.00 AQI index | — | — |
| 1996 | 40.00 AQI index | — | — |
| 1995 | 42.00 AQI index | — | — |
| 1994 | 40.00 AQI index | — | — |
| 1993 | 38.00 AQI index | — | — |
| 1992 | 40.00 AQI index | — | — |
| 1991 | 39.00 AQI index | — | — |
| 1990 | 41.00 AQI index | — | — |
| 1989 | 41.00 AQI index | — | — |
| 1988 | 42.00 AQI index | — | — |
| 1987 | 44.00 AQI index | — | — |
| 1986 | 42.00 AQI index | — | — |
| 1985 | 39.00 AQI index | — | — |
| 1984 | 40.00 AQI index | — | — |
| 1983 | 41.00 AQI index | — | — |
| 1982 | 37.00 AQI index | — | — |
| 1981 | 43.00 AQI index | — | — |
| 1980 | 38.00 AQI index | — | — |
Annual indicator
Moderate AQI days
53.00 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 | 53.00 days | provisional-current-year | — |
| 2025 | 247.00 days | — | — |
| 2024 | 243.00 days | — | — |
| 2023 | 238.00 days | — | — |
| 2022 | 211.00 days | — | — |
| 2021 | 249.00 days | — | — |
| 2020 | 178.00 days | — | — |
| 2019 | 220.00 days | — | — |
| 2018 | 199.00 days | — | — |
| 2017 | 203.00 days | — | — |
| 2016 | 194.00 days | — | — |
| 2015 | 214.00 days | — | — |
| 2014 | 213.00 days | — | — |
| 2013 | 238.00 days | — | — |
| 2012 | 274.00 days | — | — |
| 2011 | 286.00 days | — | — |
| 2010 | 283.00 days | — | — |
| 2009 | 232.00 days | — | — |
| 2008 | 266.00 days | — | — |
| 2007 | 264.00 days | — | — |
| 2006 | 267.00 days | — | — |
| 2005 | 254.00 days | — | — |
| 2004 | 270.00 days | — | — |
| 2003 | 284.00 days | — | — |
| 2002 | 247.00 days | — | — |
| 2001 | 264.00 days | — | — |
| 2000 | 274.00 days | — | — |
| 1999 | 150.00 days | — | — |
| 1998 | 70.00 days | — | — |
| 1997 | 92.00 days | — | — |
| 1996 | 65.00 days | — | — |
| 1995 | 68.00 days | — | — |
| 1994 | 72.00 days | — | — |
| 1993 | 69.00 days | — | — |
| 1992 | 76.00 days | — | — |
| 1991 | 56.00 days | — | — |
| 1990 | 58.00 days | — | — |
| 1989 | 76.00 days | — | — |
| 1988 | 77.00 days | — | — |
| 1987 | 93.00 days | — | — |
| 1986 | 72.00 days | — | — |
| 1985 | 60.00 days | — | — |
| 1984 | 77.00 days | — | — |
| 1983 | 63.00 days | — | — |
| 1982 | 73.00 days | — | — |
| 1981 | 88.00 days | — | — |
| 1980 | 55.00 days | — | — |
Annual indicator
90th percentile daily AQI
66.00 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 | 66.00 AQI index | provisional-current-year | — |
| 2025 | 69.00 AQI index | — | — |
| 2024 | 75.00 AQI index | — | — |
| 2023 | 79.00 AQI index | — | — |
| 2022 | 67.00 AQI index | — | — |
| 2021 | 73.00 AQI index | — | — |
| 2020 | 64.00 AQI index | — | — |
| 2019 | 64.00 AQI index | — | — |
| 2018 | 66.00 AQI index | — | — |
| 2017 | 64.00 AQI index | — | — |
| 2016 | 64.00 AQI index | — | — |
| 2015 | 69.00 AQI index | — | — |
| 2014 | 70.00 AQI index | — | — |
| 2013 | 73.00 AQI index | — | — |
| 2012 | 84.00 AQI index | — | — |
| 2011 | 84.00 AQI index | — | — |
| 2010 | 80.00 AQI index | — | — |
| 2009 | 72.00 AQI index | — | — |
| 2008 | 74.00 AQI index | — | — |
| 2007 | 88.00 AQI index | — | — |
| 2006 | 87.00 AQI index | — | — |
| 2005 | 101.00 AQI index | — | — |
| 2004 | 80.00 AQI index | — | — |
| 2003 | 84.00 AQI index | — | — |
| 2002 | 100.00 AQI index | — | — |
| 2001 | 100.00 AQI index | — | — |
| 2000 | 105.00 AQI index | — | — |
| 1999 | 97.00 AQI index | — | — |
| 1998 | 90.00 AQI index | — | — |
| 1997 | 87.00 AQI index | — | — |
| 1996 | 67.00 AQI index | — | — |
| 1995 | 101.00 AQI index | — | — |
| 1994 | 77.00 AQI index | — | — |
| 1993 | 74.00 AQI index | — | — |
| 1992 | 64.00 AQI index | — | — |
| 1991 | 87.00 AQI index | — | — |
| 1990 | 101.00 AQI index | — | — |
| 1989 | 74.00 AQI index | — | — |
| 1988 | 101.00 AQI index | — | — |
| 1987 | 101.00 AQI index | — | — |
| 1986 | 90.00 AQI index | — | — |
| 1985 | 74.00 AQI index | — | — |
| 1984 | 97.00 AQI index | — | — |
| 1983 | 105.00 AQI index | — | — |
| 1982 | 71.00 AQI index | — | — |
| 1981 | 101.00 AQI index | — | — |
| 1980 | 115.00 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 | 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 | 3.00 days | — | — |
| 2006 | 6.00 days | — | — |
| 2005 | 4.00 days | — | — |
| 2004 | 1.00 days | — | — |
| 2003 | 1.00 days | — | — |
| 2002 | 10.00 days | — | — |
| 2001 | 4.00 days | — | — |
| 2000 | 14.00 days | — | — |
| 1999 | 4.00 days | — | — |
| 1998 | 3.00 days | — | — |
| 1997 | 1.00 days | — | — |
| 1996 | 1.00 days | — | — |
| 1995 | 6.00 days | — | — |
| 1994 | 2.00 days | — | — |
| 1993 | 1.00 days | — | — |
| 1992 | 0.00 days | — | — |
| 1991 | 2.00 days | — | — |
| 1990 | 0.00 days | — | — |
| 1989 | 1.00 days | — | — |
| 1988 | 7.00 days | — | — |
| 1987 | 11.00 days | — | — |
| 1986 | 7.00 days | — | — |
| 1985 | 4.00 days | — | — |
| 1984 | 4.00 days | — | — |
| 1983 | 6.00 days | — | — |
| 1982 | 1.00 days | — | — |
| 1981 | 1.00 days | — | — |
| 1980 | 17.00 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 | 4.00 days | — | — |
| 2024 | 5.00 days | — | — |
| 2023 | 4.00 days | — | — |
| 2022 | 1.00 days | — | — |
| 2021 | 2.00 days | — | — |
| 2020 | 2.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 2.00 days | — | — |
| 2017 | 1.00 days | — | — |
| 2016 | 0.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 3.00 days | — | — |
| 2013 | 3.00 days | — | — |
| 2012 | 17.00 days | — | — |
| 2011 | 18.00 days | — | — |
| 2010 | 8.00 days | — | — |
| 2009 | 4.00 days | — | — |
| 2008 | 4.00 days | — | — |
| 2007 | 18.00 days | — | — |
| 2006 | 15.00 days | — | — |
| 2005 | 40.00 days | — | — |
| 2004 | 11.00 days | — | — |
| 2003 | 14.00 days | — | — |
| 2002 | 21.00 days | — | — |
| 2001 | 29.00 days | — | — |
| 2000 | 27.00 days | — | — |
| 1999 | 25.00 days | — | — |
| 1998 | 23.00 days | — | — |
| 1997 | 19.00 days | — | — |
| 1996 | 14.00 days | — | — |
| 1995 | 36.00 days | — | — |
| 1994 | 12.00 days | — | — |
| 1993 | 4.00 days | — | — |
| 1992 | 10.00 days | — | — |
| 1991 | 24.00 days | — | — |
| 1990 | 36.00 days | — | — |
| 1989 | 14.00 days | — | — |
| 1988 | 32.00 days | — | — |
| 1987 | 26.00 days | — | — |
| 1986 | 19.00 days | — | — |
| 1985 | 13.00 days | — | — |
| 1984 | 27.00 days | — | — |
| 1983 | 39.00 days | — | — |
| 1982 | 7.00 days | — | — |
| 1981 | 37.00 days | — | — |
| 1980 | 28.00 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 | 1.00 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 | 1.00 days | — | — |
| 1989 | 0.00 days | — | — |
| 1988 | 0.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 1.00 days | — | — |
| 1985 | 0.00 days | — | — |
| 1984 | 0.00 days | — | — |
| 1983 | 0.00 days | — | — |
| 1982 | 0.00 days | — | — |
| 1981 | 0.00 days | — | — |
| 1980 | 1.00 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
- 2026-04-01
- 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
- 2026-04-01
- Dataset version
- air-quality-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.