Air quality reference
Anchorage, AK
Anchorage, AK has a published AQI value of 10, categorized as Good, for 2026-03-23T00:00:00+00:00. The defining parameter is PM10, 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
- Anchorage, AK
- Air quality index
- 10
- Category
- Good
- Defining parameter
- PM10
- Sites reporting
- 1
- Measured at
- 2026-03-23T00:00:00+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
80.00 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 | 80.00 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 | 363.00 days | — | — |
| 2008 | 312.00 days | — | — |
| 2007 | 310.00 days | — | — |
| 2006 | 308.00 days | — | — |
| 2005 | 303.00 days | — | — |
| 2004 | 307.00 days | — | — |
| 2003 | 310.00 days | — | — |
| 2002 | 304.00 days | — | — |
| 2001 | 305.00 days | — | — |
| 2000 | 305.00 days | — | — |
| 1999 | 313.00 days | — | — |
| 1998 | 362.00 days | — | — |
| 1997 | 360.00 days | — | — |
| 1996 | 351.00 days | — | — |
| 1995 | 363.00 days | — | — |
| 1994 | 362.00 days | — | — |
| 1993 | 362.00 days | — | — |
| 1992 | 364.00 days | — | — |
| 1991 | 364.00 days | — | — |
| 1990 | 363.00 days | — | — |
| 1989 | 352.00 days | — | — |
| 1988 | 365.00 days | — | — |
| 1987 | 348.00 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
76.00 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 | 76.00 days | provisional-current-year | — |
| 2025 | 283.00 days | — | — |
| 2024 | 284.00 days | — | — |
| 2023 | 296.00 days | — | — |
| 2022 | 286.00 days | — | — |
| 2021 | 270.00 days | — | — |
| 2020 | 281.00 days | — | — |
| 2019 | 233.00 days | — | — |
| 2018 | 269.00 days | — | — |
| 2017 | 272.00 days | — | — |
| 2016 | 221.00 days | — | — |
| 2015 | 234.00 days | — | — |
| 2014 | 214.00 days | — | — |
| 2013 | 250.00 days | — | — |
| 2012 | 234.00 days | — | — |
| 2011 | 232.00 days | — | — |
| 2010 | 260.00 days | — | — |
| 2009 | 245.00 days | — | — |
| 2008 | 269.00 days | — | — |
| 2007 | 262.00 days | — | — |
| 2006 | 246.00 days | — | — |
| 2005 | 243.00 days | — | — |
| 2004 | 261.00 days | — | — |
| 2003 | 257.00 days | — | — |
| 2002 | 236.00 days | — | — |
| 2001 | 236.00 days | — | — |
| 2000 | 249.00 days | — | — |
| 1999 | 230.00 days | — | — |
| 1998 | 261.00 days | — | — |
| 1997 | 266.00 days | — | — |
| 1996 | 228.00 days | — | — |
| 1995 | 245.00 days | — | — |
| 1994 | 229.00 days | — | — |
| 1993 | 217.00 days | — | — |
| 1992 | 175.00 days | — | — |
| 1991 | 212.00 days | — | — |
| 1990 | 206.00 days | — | — |
| 1989 | 220.00 days | — | — |
| 1988 | 221.00 days | — | — |
| 1987 | 210.00 days | — | — |
| 1986 | 199.00 days | — | — |
| 1985 | 228.00 days | — | — |
| 1984 | 202.00 days | — | — |
| 1983 | 178.00 days | — | — |
| 1982 | 186.00 days | — | — |
| 1981 | 207.00 days | — | — |
| 1980 | 202.00 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 | 1.00 days | — | — |
| 2003 | 1.00 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 | 2.00 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
71.00 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 | 71.00 AQI index | provisional-current-year | — |
| 2025 | 141.00 AQI index | — | — |
| 2024 | 95.00 AQI index | — | — |
| 2023 | 102.00 AQI index | — | — |
| 2022 | 125.00 AQI index | — | — |
| 2021 | 163.00 AQI index | — | — |
| 2020 | 103.00 AQI index | — | — |
| 2019 | 163.00 AQI index | — | — |
| 2018 | 151.00 AQI index | — | — |
| 2017 | 157.00 AQI index | — | — |
| 2016 | 128.00 AQI index | — | — |
| 2015 | 155.00 AQI index | — | — |
| 2014 | 231.00 AQI index | — | — |
| 2013 | 151.00 AQI index | — | — |
| 2012 | 127.00 AQI index | — | — |
| 2011 | 241.00 AQI index | — | — |
| 2010 | 127.00 AQI index | — | — |
| 2009 | 105.00 AQI index | — | — |
| 2008 | 140.00 AQI index | — | — |
| 2007 | 135.00 AQI index | — | — |
| 2006 | 133.00 AQI index | — | — |
| 2005 | 151.00 AQI index | — | — |
| 2004 | 501.00 AQI index | — | — |
| 2003 | 484.00 AQI index | — | — |
| 2002 | 112.00 AQI index | — | — |
| 2001 | 113.00 AQI index | — | — |
| 2000 | 115.00 AQI index | — | — |
| 1999 | 161.00 AQI index | — | — |
| 1998 | 164.00 AQI index | — | — |
| 1997 | 91.00 AQI index | — | — |
| 1996 | 128.00 AQI index | — | — |
| 1995 | 126.00 AQI index | — | — |
| 1994 | 144.00 AQI index | — | — |
| 1993 | 116.00 AQI index | — | — |
| 1992 | 457.00 AQI index | — | — |
| 1991 | 135.00 AQI index | — | — |
| 1990 | 159.00 AQI index | — | — |
| 1989 | 176.00 AQI index | — | — |
| 1988 | 148.00 AQI index | — | — |
| 1987 | 138.00 AQI index | — | — |
| 1986 | 191.00 AQI index | — | — |
| 1985 | 154.00 AQI index | — | — |
| 1984 | 213.00 AQI index | — | — |
| 1983 | 233.00 AQI index | — | — |
| 1982 | 242.00 AQI index | — | — |
| 1981 | 215.00 AQI index | — | — |
| 1980 | 280.00 AQI index | — | — |
Annual indicator
Median daily AQI
6.00 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 | 6.00 AQI index | provisional-current-year | — |
| 2025 | 27.00 AQI index | — | — |
| 2024 | 26.00 AQI index | — | — |
| 2023 | 25.00 AQI index | — | — |
| 2022 | 27.00 AQI index | — | — |
| 2021 | 31.00 AQI index | — | — |
| 2020 | 29.00 AQI index | — | — |
| 2019 | 37.00 AQI index | — | — |
| 2018 | 34.00 AQI index | — | — |
| 2017 | 34.00 AQI index | — | — |
| 2016 | 43.00 AQI index | — | — |
| 2015 | 40.00 AQI index | — | — |
| 2014 | 42.00 AQI index | — | — |
| 2013 | 37.00 AQI index | — | — |
| 2012 | 40.00 AQI index | — | — |
| 2011 | 42.00 AQI index | — | — |
| 2010 | 37.00 AQI index | — | — |
| 2009 | 38.00 AQI index | — | — |
| 2008 | 23.00 AQI index | — | — |
| 2007 | 23.00 AQI index | — | — |
| 2006 | 25.00 AQI index | — | — |
| 2005 | 26.00 AQI index | — | — |
| 2004 | 27.00 AQI index | — | — |
| 2003 | 26.00 AQI index | — | — |
| 2002 | 33.00 AQI index | — | — |
| 2001 | 32.00 AQI index | — | — |
| 2000 | 32.00 AQI index | — | — |
| 1999 | 36.00 AQI index | — | — |
| 1998 | 34.00 AQI index | — | — |
| 1997 | 38.00 AQI index | — | — |
| 1996 | 41.00 AQI index | — | — |
| 1995 | 38.00 AQI index | — | — |
| 1994 | 43.00 AQI index | — | — |
| 1993 | 43.00 AQI index | — | — |
| 1992 | 52.00 AQI index | — | — |
| 1991 | 44.00 AQI index | — | — |
| 1990 | 44.00 AQI index | — | — |
| 1989 | 40.00 AQI index | — | — |
| 1988 | 44.00 AQI index | — | — |
| 1987 | 43.00 AQI index | — | — |
| 1986 | 48.00 AQI index | — | — |
| 1985 | 38.00 AQI index | — | — |
| 1984 | 45.00 AQI index | — | — |
| 1983 | 51.00 AQI index | — | — |
| 1982 | 49.00 AQI index | — | — |
| 1981 | 45.00 AQI index | — | — |
| 1980 | 45.00 AQI index | — | — |
Annual indicator
Moderate AQI days
4.00 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 | 4.00 days | provisional-current-year | — |
| 2025 | 79.00 days | — | — |
| 2024 | 82.00 days | — | — |
| 2023 | 68.00 days | — | — |
| 2022 | 78.00 days | — | — |
| 2021 | 91.00 days | — | — |
| 2020 | 84.00 days | — | — |
| 2019 | 120.00 days | — | — |
| 2018 | 92.00 days | — | — |
| 2017 | 87.00 days | — | — |
| 2016 | 141.00 days | — | — |
| 2015 | 120.00 days | — | — |
| 2014 | 138.00 days | — | — |
| 2013 | 110.00 days | — | — |
| 2012 | 127.00 days | — | — |
| 2011 | 130.00 days | — | — |
| 2010 | 100.00 days | — | — |
| 2009 | 116.00 days | — | — |
| 2008 | 42.00 days | — | — |
| 2007 | 47.00 days | — | — |
| 2006 | 58.00 days | — | — |
| 2005 | 57.00 days | — | — |
| 2004 | 44.00 days | — | — |
| 2003 | 48.00 days | — | — |
| 2002 | 66.00 days | — | — |
| 2001 | 67.00 days | — | — |
| 2000 | 55.00 days | — | — |
| 1999 | 77.00 days | — | — |
| 1998 | 98.00 days | — | — |
| 1997 | 94.00 days | — | — |
| 1996 | 117.00 days | — | — |
| 1995 | 113.00 days | — | — |
| 1994 | 125.00 days | — | — |
| 1993 | 135.00 days | — | — |
| 1992 | 172.00 days | — | — |
| 1991 | 146.00 days | — | — |
| 1990 | 141.00 days | — | — |
| 1989 | 124.00 days | — | — |
| 1988 | 132.00 days | — | — |
| 1987 | 129.00 days | — | — |
| 1986 | 151.00 days | — | — |
| 1985 | 116.00 days | — | — |
| 1984 | 124.00 days | — | — |
| 1983 | 120.00 days | — | — |
| 1982 | 133.00 days | — | — |
| 1981 | 123.00 days | — | — |
| 1980 | 117.00 days | — | — |
Annual indicator
90th percentile daily AQI
31.00 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 | 31.00 AQI index | provisional-current-year | — |
| 2025 | 61.00 AQI index | — | — |
| 2024 | 58.00 AQI index | — | — |
| 2023 | 58.00 AQI index | — | — |
| 2022 | 61.00 AQI index | — | — |
| 2021 | 61.00 AQI index | — | — |
| 2020 | 57.00 AQI index | — | — |
| 2019 | 73.00 AQI index | — | — |
| 2018 | 64.00 AQI index | — | — |
| 2017 | 66.00 AQI index | — | — |
| 2016 | 71.00 AQI index | — | — |
| 2015 | 78.00 AQI index | — | — |
| 2014 | 81.00 AQI index | — | — |
| 2013 | 64.00 AQI index | — | — |
| 2012 | 80.00 AQI index | — | — |
| 2011 | 63.00 AQI index | — | — |
| 2010 | 64.00 AQI index | — | — |
| 2009 | 66.00 AQI index | — | — |
| 2008 | 56.00 AQI index | — | — |
| 2007 | 54.00 AQI index | — | — |
| 2006 | 61.00 AQI index | — | — |
| 2005 | 60.00 AQI index | — | — |
| 2004 | 58.00 AQI index | — | — |
| 2003 | 58.00 AQI index | — | — |
| 2002 | 60.00 AQI index | — | — |
| 2001 | 65.00 AQI index | — | — |
| 2000 | 57.00 AQI index | — | — |
| 1999 | 68.00 AQI index | — | — |
| 1998 | 62.00 AQI index | — | — |
| 1997 | 62.00 AQI index | — | — |
| 1996 | 71.00 AQI index | — | — |
| 1995 | 74.00 AQI index | — | — |
| 1994 | 81.00 AQI index | — | — |
| 1993 | 74.00 AQI index | — | — |
| 1992 | 87.00 AQI index | — | — |
| 1991 | 81.00 AQI index | — | — |
| 1990 | 84.00 AQI index | — | — |
| 1989 | 76.00 AQI index | — | — |
| 1988 | 83.00 AQI index | — | — |
| 1987 | 74.00 AQI index | — | — |
| 1986 | 76.00 AQI index | — | — |
| 1985 | 84.00 AQI index | — | — |
| 1984 | 108.00 AQI index | — | — |
| 1983 | 126.00 AQI index | — | — |
| 1982 | 118.00 AQI index | — | — |
| 1981 | 99.00 AQI index | — | — |
| 1980 | 126.00 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 | 0.00 days | — | — |
| 2022 | 0.00 days | — | — |
| 2021 | 1.00 days | — | — |
| 2020 | 0.00 days | — | — |
| 2019 | 4.00 days | — | — |
| 2018 | 1.00 days | — | — |
| 2017 | 1.00 days | — | — |
| 2016 | 0.00 days | — | — |
| 2015 | 1.00 days | — | — |
| 2014 | 2.00 days | — | — |
| 2013 | 1.00 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 | 1.00 days | — | — |
| 2004 | 0.00 days | — | — |
| 2003 | 1.00 days | — | — |
| 2002 | 0.00 days | — | — |
| 2001 | 0.00 days | — | — |
| 2000 | 0.00 days | — | — |
| 1999 | 2.00 days | — | — |
| 1998 | 1.00 days | — | — |
| 1997 | 0.00 days | — | — |
| 1996 | 0.00 days | — | — |
| 1995 | 0.00 days | — | — |
| 1994 | 0.00 days | — | — |
| 1993 | 0.00 days | — | — |
| 1992 | 2.00 days | — | — |
| 1991 | 0.00 days | — | — |
| 1990 | 2.00 days | — | — |
| 1989 | 1.00 days | — | — |
| 1988 | 0.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 3.00 days | — | — |
| 1985 | 2.00 days | — | — |
| 1984 | 4.00 days | — | — |
| 1983 | 16.00 days | — | — |
| 1982 | 15.00 days | — | — |
| 1981 | 13.00 days | — | — |
| 1980 | 14.00 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 | 3.00 days | — | — |
| 2024 | 0.00 days | — | — |
| 2023 | 1.00 days | — | — |
| 2022 | 1.00 days | — | — |
| 2021 | 3.00 days | — | — |
| 2020 | 1.00 days | — | — |
| 2019 | 8.00 days | — | — |
| 2018 | 3.00 days | — | — |
| 2017 | 5.00 days | — | — |
| 2016 | 4.00 days | — | — |
| 2015 | 10.00 days | — | — |
| 2014 | 10.00 days | — | — |
| 2013 | 4.00 days | — | — |
| 2012 | 5.00 days | — | — |
| 2011 | 2.00 days | — | — |
| 2010 | 5.00 days | — | — |
| 2009 | 2.00 days | — | — |
| 2008 | 1.00 days | — | — |
| 2007 | 1.00 days | — | — |
| 2006 | 4.00 days | — | — |
| 2005 | 2.00 days | — | — |
| 2004 | 1.00 days | — | — |
| 2003 | 3.00 days | — | — |
| 2002 | 2.00 days | — | — |
| 2001 | 2.00 days | — | — |
| 2000 | 1.00 days | — | — |
| 1999 | 4.00 days | — | — |
| 1998 | 2.00 days | — | — |
| 1997 | 0.00 days | — | — |
| 1996 | 6.00 days | — | — |
| 1995 | 5.00 days | — | — |
| 1994 | 8.00 days | — | — |
| 1993 | 10.00 days | — | — |
| 1992 | 13.00 days | — | — |
| 1991 | 6.00 days | — | — |
| 1990 | 14.00 days | — | — |
| 1989 | 7.00 days | — | — |
| 1988 | 12.00 days | — | — |
| 1987 | 9.00 days | — | — |
| 1986 | 12.00 days | — | — |
| 1985 | 19.00 days | — | — |
| 1984 | 28.00 days | — | — |
| 1983 | 45.00 days | — | — |
| 1982 | 29.00 days | — | — |
| 1981 | 20.00 days | — | — |
| 1980 | 20.00 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 | 1.00 days | — | — |
| 2013 | 0.00 days | — | — |
| 2012 | 0.00 days | — | — |
| 2011 | 1.00 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 | 8.00 days | — | — |
| 1983 | 6.00 days | — | — |
| 1982 | 2.00 days | — | — |
| 1981 | 2.00 days | — | — |
| 1980 | 13.00 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
- 2026-03-23
- 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
- 2026-03-23
- Dataset version
- air-quality-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.