Air quality reference
Ithaca, NY
Ithaca, NY has a published AQI value of 38, categorized as Good, for 2026-03-31T00:00:00+00:00. The defining parameter is Ozone, 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
- Ithaca, NY
- Air quality index
- 38
- Category
- Good
- Defining parameter
- Ozone
- Sites reporting
- 1
- Measured at
- 2026-03-31T00:00:00+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
89.00 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 | 89.00 days | provisional-current-year | — |
| 2025 | 355.00 days | — | — |
| 2024 | 350.00 days | — | — |
| 2023 | 357.00 days | — | — |
| 2022 | 361.00 days | — | — |
| 2021 | 360.00 days | — | — |
| 2020 | 364.00 days | — | — |
| 2019 | 356.00 days | — | — |
| 2018 | 360.00 days | — | — |
| 2017 | 353.00 days | — | — |
| 2016 | 361.00 days | — | — |
| 2015 | 351.00 days | — | — |
| 2014 | 353.00 days | — | — |
| 2013 | 351.00 days | — | — |
| 2012 | 350.00 days | — | — |
| 2011 | 289.00 days | — | — |
| 2010 | 345.00 days | — | — |
| 2009 | 347.00 days | — | — |
| 2008 | 361.00 days | — | — |
| 2007 | 356.00 days | — | — |
| 2006 | 348.00 days | — | — |
| 2005 | 363.00 days | — | — |
| 2004 | 352.00 days | — | — |
| 2003 | 322.00 days | — | — |
| 2002 | 361.00 days | — | — |
| 2001 | 359.00 days | — | — |
| 2000 | 348.00 days | — | — |
| 1999 | 348.00 days | — | — |
| 1998 | 360.00 days | — | — |
| 1997 | 360.00 days | — | — |
| 1996 | 205.00 days | — | — |
| 1995 | 269.00 days | — | — |
| 1994 | 244.00 days | — | — |
| 1993 | 292.00 days | — | — |
| 1992 | 364.00 days | — | — |
| 1991 | 362.00 days | — | — |
| 1990 | 348.00 days | — | — |
Annual indicator
Good AQI days
89.00 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 | 89.00 days | provisional-current-year | — |
| 2025 | 331.00 days | — | — |
| 2024 | 340.00 days | — | — |
| 2023 | 332.00 days | — | — |
| 2022 | 349.00 days | — | — |
| 2021 | 334.00 days | — | — |
| 2020 | 359.00 days | — | — |
| 2019 | 349.00 days | — | — |
| 2018 | 332.00 days | — | — |
| 2017 | 339.00 days | — | — |
| 2016 | 331.00 days | — | — |
| 2015 | 332.00 days | — | — |
| 2014 | 334.00 days | — | — |
| 2013 | 327.00 days | — | — |
| 2012 | 305.00 days | — | — |
| 2011 | 269.00 days | — | — |
| 2010 | 298.00 days | — | — |
| 2009 | 328.00 days | — | — |
| 2008 | 330.00 days | — | — |
| 2007 | 302.00 days | — | — |
| 2006 | 304.00 days | — | — |
| 2005 | 274.00 days | — | — |
| 2004 | 290.00 days | — | — |
| 2003 | 249.00 days | — | — |
| 2002 | 265.00 days | — | — |
| 2001 | 272.00 days | — | — |
| 2000 | 297.00 days | — | — |
| 1999 | 258.00 days | — | — |
| 1998 | 260.00 days | — | — |
| 1997 | 275.00 days | — | — |
| 1996 | 157.00 days | — | — |
| 1995 | 199.00 days | — | — |
| 1994 | 173.00 days | — | — |
| 1993 | 206.00 days | — | — |
| 1992 | 311.00 days | — | — |
| 1991 | 263.00 days | — | — |
| 1990 | 271.00 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 | — | — |
Annual indicator
Maximum daily AQI
49.00 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 | 49.00 AQI index | provisional-current-year | — |
| 2025 | 74.00 AQI index | — | — |
| 2024 | 71.00 AQI index | — | — |
| 2023 | 100.00 AQI index | — | — |
| 2022 | 67.00 AQI index | — | — |
| 2021 | 105.00 AQI index | — | — |
| 2020 | 64.00 AQI index | — | — |
| 2019 | 61.00 AQI index | — | — |
| 2018 | 101.00 AQI index | — | — |
| 2017 | 71.00 AQI index | — | — |
| 2016 | 122.00 AQI index | — | — |
| 2015 | 93.00 AQI index | — | — |
| 2014 | 80.00 AQI index | — | — |
| 2013 | 93.00 AQI index | — | — |
| 2012 | 115.00 AQI index | — | — |
| 2011 | 90.00 AQI index | — | — |
| 2010 | 122.00 AQI index | — | — |
| 2009 | 93.00 AQI index | — | — |
| 2008 | 150.00 AQI index | — | — |
| 2007 | 115.00 AQI index | — | — |
| 2006 | 119.00 AQI index | — | — |
| 2005 | 151.00 AQI index | — | — |
| 2004 | 108.00 AQI index | — | — |
| 2003 | 177.00 AQI index | — | — |
| 2002 | 192.00 AQI index | — | — |
| 2001 | 151.00 AQI index | — | — |
| 2000 | 150.00 AQI index | — | — |
| 1999 | 150.00 AQI index | — | — |
| 1998 | 177.00 AQI index | — | — |
| 1997 | 150.00 AQI index | — | — |
| 1996 | 151.00 AQI index | — | — |
| 1995 | 159.00 AQI index | — | — |
| 1994 | 154.00 AQI index | — | — |
| 1993 | 190.00 AQI index | — | — |
| 1992 | 179.00 AQI index | — | — |
| 1991 | 192.00 AQI index | — | — |
| 1990 | 154.00 AQI index | — | — |
Annual indicator
Median daily AQI
36.00 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 | 36.00 AQI index | provisional-current-year | — |
| 2025 | 35.00 AQI index | — | — |
| 2024 | 35.00 AQI index | — | — |
| 2023 | 35.00 AQI index | — | — |
| 2022 | 36.00 AQI index | — | — |
| 2021 | 35.00 AQI index | — | — |
| 2020 | 34.00 AQI index | — | — |
| 2019 | 35.00 AQI index | — | — |
| 2018 | 33.00 AQI index | — | — |
| 2017 | 35.00 AQI index | — | — |
| 2016 | 36.00 AQI index | — | — |
| 2015 | 35.00 AQI index | — | — |
| 2014 | 35.00 AQI index | — | — |
| 2013 | 35.00 AQI index | — | — |
| 2012 | 37.00 AQI index | — | — |
| 2011 | 35.00 AQI index | — | — |
| 2010 | 37.00 AQI index | — | — |
| 2009 | 34.00 AQI index | — | — |
| 2008 | 34.00 AQI index | — | — |
| 2007 | 35.00 AQI index | — | — |
| 2006 | 35.00 AQI index | — | — |
| 2005 | 41.00 AQI index | — | — |
| 2004 | 37.00 AQI index | — | — |
| 2003 | 38.00 AQI index | — | — |
| 2002 | 38.00 AQI index | — | — |
| 2001 | 40.00 AQI index | — | — |
| 2000 | 38.00 AQI index | — | — |
| 1999 | 41.00 AQI index | — | — |
| 1998 | 40.00 AQI index | — | — |
| 1997 | 39.00 AQI index | — | — |
| 1996 | 35.00 AQI index | — | — |
| 1995 | 43.00 AQI index | — | — |
| 1994 | 40.00 AQI index | — | — |
| 1993 | 41.00 AQI index | — | — |
| 1992 | 35.00 AQI index | — | — |
| 1991 | 38.00 AQI index | — | — |
| 1990 | 37.00 AQI index | — | — |
Annual indicator
Moderate AQI days
0.00 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 | 0.00 days | provisional-current-year | — |
| 2025 | 24.00 days | — | — |
| 2024 | 10.00 days | — | — |
| 2023 | 25.00 days | — | — |
| 2022 | 12.00 days | — | — |
| 2021 | 25.00 days | — | — |
| 2020 | 5.00 days | — | — |
| 2019 | 7.00 days | — | — |
| 2018 | 27.00 days | — | — |
| 2017 | 14.00 days | — | — |
| 2016 | 28.00 days | — | — |
| 2015 | 19.00 days | — | — |
| 2014 | 19.00 days | — | — |
| 2013 | 24.00 days | — | — |
| 2012 | 39.00 days | — | — |
| 2011 | 20.00 days | — | — |
| 2010 | 43.00 days | — | — |
| 2009 | 19.00 days | — | — |
| 2008 | 28.00 days | — | — |
| 2007 | 50.00 days | — | — |
| 2006 | 43.00 days | — | — |
| 2005 | 77.00 days | — | — |
| 2004 | 60.00 days | — | — |
| 2003 | 66.00 days | — | — |
| 2002 | 73.00 days | — | — |
| 2001 | 65.00 days | — | — |
| 2000 | 40.00 days | — | — |
| 1999 | 70.00 days | — | — |
| 1998 | 67.00 days | — | — |
| 1997 | 68.00 days | — | — |
| 1996 | 38.00 days | — | — |
| 1995 | 50.00 days | — | — |
| 1994 | 57.00 days | — | — |
| 1993 | 65.00 days | — | — |
| 1992 | 37.00 days | — | — |
| 1991 | 58.00 days | — | — |
| 1990 | 60.00 days | — | — |
Annual indicator
90th percentile daily AQI
42.00 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 | 42.00 AQI index | provisional-current-year | — |
| 2025 | 47.00 AQI index | — | — |
| 2024 | 47.00 AQI index | — | — |
| 2023 | 47.00 AQI index | — | — |
| 2022 | 44.00 AQI index | — | — |
| 2021 | 48.00 AQI index | — | — |
| 2020 | 44.00 AQI index | — | — |
| 2019 | 45.00 AQI index | — | — |
| 2018 | 47.00 AQI index | — | — |
| 2017 | 45.00 AQI index | — | — |
| 2016 | 48.00 AQI index | — | — |
| 2015 | 48.00 AQI index | — | — |
| 2014 | 45.00 AQI index | — | — |
| 2013 | 48.00 AQI index | — | — |
| 2012 | 54.00 AQI index | — | — |
| 2011 | 49.00 AQI index | — | — |
| 2010 | 58.00 AQI index | — | — |
| 2009 | 47.00 AQI index | — | — |
| 2008 | 49.00 AQI index | — | — |
| 2007 | 61.00 AQI index | — | — |
| 2006 | 54.00 AQI index | — | — |
| 2005 | 77.00 AQI index | — | — |
| 2004 | 58.00 AQI index | — | — |
| 2003 | 68.00 AQI index | — | — |
| 2002 | 87.00 AQI index | — | — |
| 2001 | 80.00 AQI index | — | — |
| 2000 | 67.00 AQI index | — | — |
| 1999 | 87.00 AQI index | — | — |
| 1998 | 100.00 AQI index | — | — |
| 1997 | 77.00 AQI index | — | — |
| 1996 | 87.00 AQI index | — | — |
| 1995 | 90.00 AQI index | — | — |
| 1994 | 90.00 AQI index | — | — |
| 1993 | 93.00 AQI index | — | — |
| 1992 | 74.00 AQI index | — | — |
| 1991 | 105.00 AQI index | — | — |
| 1990 | 80.00 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 | 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 | 2.00 days | — | — |
| 2004 | 0.00 days | — | — |
| 2003 | 3.00 days | — | — |
| 2002 | 6.00 days | — | — |
| 2001 | 1.00 days | — | — |
| 2000 | 0.00 days | — | — |
| 1999 | 0.00 days | — | — |
| 1998 | 4.00 days | — | — |
| 1997 | 0.00 days | — | — |
| 1996 | 1.00 days | — | — |
| 1995 | 1.00 days | — | — |
| 1994 | 1.00 days | — | — |
| 1993 | 3.00 days | — | — |
| 1992 | 4.00 days | — | — |
| 1991 | 6.00 days | — | — |
| 1990 | 1.00 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 | 0.00 days | — | — |
| 2024 | 0.00 days | — | — |
| 2023 | 0.00 days | — | — |
| 2022 | 0.00 days | — | — |
| 2021 | 1.00 days | — | — |
| 2020 | 0.00 days | — | — |
| 2019 | 0.00 days | — | — |
| 2018 | 1.00 days | — | — |
| 2017 | 0.00 days | — | — |
| 2016 | 2.00 days | — | — |
| 2015 | 0.00 days | — | — |
| 2014 | 0.00 days | — | — |
| 2013 | 0.00 days | — | — |
| 2012 | 6.00 days | — | — |
| 2011 | 0.00 days | — | — |
| 2010 | 4.00 days | — | — |
| 2009 | 0.00 days | — | — |
| 2008 | 3.00 days | — | — |
| 2007 | 4.00 days | — | — |
| 2006 | 1.00 days | — | — |
| 2005 | 10.00 days | — | — |
| 2004 | 2.00 days | — | — |
| 2003 | 4.00 days | — | — |
| 2002 | 17.00 days | — | — |
| 2001 | 21.00 days | — | — |
| 2000 | 11.00 days | — | — |
| 1999 | 20.00 days | — | — |
| 1998 | 29.00 days | — | — |
| 1997 | 17.00 days | — | — |
| 1996 | 9.00 days | — | — |
| 1995 | 19.00 days | — | — |
| 1994 | 13.00 days | — | — |
| 1993 | 18.00 days | — | — |
| 1992 | 12.00 days | — | — |
| 1991 | 35.00 days | — | — |
| 1990 | 16.00 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 | 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 | — | — |
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
- 2026-03-31
- 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
- 2026-03-31
- Dataset version
- air-quality-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.