Air quality reference
Salem, OH
Salem, OH has a published AQI value of 14, categorized as Good, for 2026-04-26T00:00:00+00:00. The defining parameter is PM10, based on 2 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
- Salem, OH
- Air quality index
- 14
- Category
- Good
- Defining parameter
- PM10
- Sites reporting
- 2
- Measured at
- 2026-04-26T00:00:00+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
20.00 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 | 20.00 days | provisional-current-year | — |
| 2025 | 61.00 days | — | — |
| 2024 | 63.00 days | — | — |
| 2023 | 61.00 days | — | — |
| 2022 | 61.00 days | — | — |
| 2021 | 61.00 days | — | — |
| 2020 | 48.00 days | — | — |
| 2019 | 62.00 days | — | — |
| 2018 | 63.00 days | — | — |
| 2017 | 61.00 days | — | — |
| 2016 | 61.00 days | — | — |
| 2015 | 60.00 days | — | — |
| 2014 | 61.00 days | — | — |
| 2013 | 61.00 days | — | — |
| 2012 | 61.00 days | — | — |
| 2011 | 61.00 days | — | — |
| 2010 | 61.00 days | — | — |
| 2009 | 61.00 days | — | — |
| 2008 | 61.00 days | — | — |
| 2007 | 59.00 days | — | — |
| 2006 | 61.00 days | — | — |
| 2005 | 61.00 days | — | — |
| 2004 | 61.00 days | — | — |
| 2003 | 61.00 days | — | — |
| 2002 | 18.00 days | — | — |
| 2001 | 17.00 days | — | — |
| 2000 | 47.00 days | — | — |
| 1999 | 56.00 days | — | — |
| 1998 | 298.00 days | — | — |
| 1997 | 327.00 days | — | — |
| 1996 | 352.00 days | — | — |
| 1995 | 362.00 days | — | — |
| 1994 | 365.00 days | — | — |
| 1993 | 362.00 days | — | — |
| 1992 | 365.00 days | — | — |
| 1991 | 255.00 days | — | — |
| 1990 | 178.00 days | — | — |
| 1989 | 180.00 days | — | — |
| 1988 | 182.00 days | — | — |
| 1987 | 182.00 days | — | — |
| 1986 | 175.00 days | — | — |
| 1985 | 121.00 days | — | — |
Annual indicator
Good AQI days
20.00 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 | 20.00 days | provisional-current-year | — |
| 2025 | 61.00 days | — | — |
| 2024 | 63.00 days | — | — |
| 2023 | 60.00 days | — | — |
| 2022 | 61.00 days | — | — |
| 2021 | 61.00 days | — | — |
| 2020 | 48.00 days | — | — |
| 2019 | 62.00 days | — | — |
| 2018 | 63.00 days | — | — |
| 2017 | 61.00 days | — | — |
| 2016 | 61.00 days | — | — |
| 2015 | 60.00 days | — | — |
| 2014 | 61.00 days | — | — |
| 2013 | 61.00 days | — | — |
| 2012 | 61.00 days | — | — |
| 2011 | 61.00 days | — | — |
| 2010 | 59.00 days | — | — |
| 2009 | 60.00 days | — | — |
| 2008 | 59.00 days | — | — |
| 2007 | 56.00 days | — | — |
| 2006 | 58.00 days | — | — |
| 2005 | 55.00 days | — | — |
| 2004 | 54.00 days | — | — |
| 2003 | 52.00 days | — | — |
| 2002 | 17.00 days | — | — |
| 2001 | 16.00 days | — | — |
| 2000 | 38.00 days | — | — |
| 1999 | 37.00 days | — | — |
| 1998 | 274.00 days | — | — |
| 1997 | 310.00 days | — | — |
| 1996 | 315.00 days | — | — |
| 1995 | 298.00 days | — | — |
| 1994 | 257.00 days | — | — |
| 1993 | 239.00 days | — | — |
| 1992 | 312.00 days | — | — |
| 1991 | 218.00 days | — | — |
| 1990 | 154.00 days | — | — |
| 1989 | 152.00 days | — | — |
| 1988 | 151.00 days | — | — |
| 1987 | 149.00 days | — | — |
| 1986 | 136.00 days | — | — |
| 1985 | 100.00 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 | — | — |
Annual indicator
Maximum daily AQI
21.00 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 | 21.00 AQI index | provisional-current-year | — |
| 2025 | 31.00 AQI index | — | — |
| 2024 | 34.00 AQI index | — | — |
| 2023 | 74.00 AQI index | — | — |
| 2022 | 40.00 AQI index | — | — |
| 2021 | 35.00 AQI index | — | — |
| 2020 | 31.00 AQI index | — | — |
| 2019 | 26.00 AQI index | — | — |
| 2018 | 30.00 AQI index | — | — |
| 2017 | 26.00 AQI index | — | — |
| 2016 | 36.00 AQI index | — | — |
| 2015 | 50.00 AQI index | — | — |
| 2014 | 35.00 AQI index | — | — |
| 2013 | 43.00 AQI index | — | — |
| 2012 | 37.00 AQI index | — | — |
| 2011 | 37.00 AQI index | — | — |
| 2010 | 58.00 AQI index | — | — |
| 2009 | 57.00 AQI index | — | — |
| 2008 | 58.00 AQI index | — | — |
| 2007 | 54.00 AQI index | — | — |
| 2006 | 64.00 AQI index | — | — |
| 2005 | 73.00 AQI index | — | — |
| 2004 | 66.00 AQI index | — | — |
| 2003 | 71.00 AQI index | — | — |
| 2002 | 68.00 AQI index | — | — |
| 2001 | 53.00 AQI index | — | — |
| 2000 | 88.00 AQI index | — | — |
| 1999 | 110.00 AQI index | — | — |
| 1998 | 84.00 AQI index | — | — |
| 1997 | 73.00 AQI index | — | — |
| 1996 | 87.00 AQI index | — | — |
| 1995 | 88.00 AQI index | — | — |
| 1994 | 149.00 AQI index | — | — |
| 1993 | 113.00 AQI index | — | — |
| 1992 | 98.00 AQI index | — | — |
| 1991 | 82.00 AQI index | — | — |
| 1990 | 82.00 AQI index | — | — |
| 1989 | 86.00 AQI index | — | — |
| 1988 | 75.00 AQI index | — | — |
| 1987 | 83.00 AQI index | — | — |
| 1986 | 87.00 AQI index | — | — |
| 1985 | 82.00 AQI index | — | — |
Annual indicator
Median daily AQI
14.00 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 | 14.00 AQI index | provisional-current-year | — |
| 2025 | 12.00 AQI index | — | — |
| 2024 | 12.00 AQI index | — | — |
| 2023 | 11.00 AQI index | — | — |
| 2022 | 12.00 AQI index | — | — |
| 2021 | 16.00 AQI index | — | — |
| 2020 | 10.00 AQI index | — | — |
| 2019 | 12.00 AQI index | — | — |
| 2018 | 12.00 AQI index | — | — |
| 2017 | 14.00 AQI index | — | — |
| 2016 | 15.00 AQI index | — | — |
| 2015 | 18.00 AQI index | — | — |
| 2014 | 16.00 AQI index | — | — |
| 2013 | 17.00 AQI index | — | — |
| 2012 | 19.00 AQI index | — | — |
| 2011 | 20.00 AQI index | — | — |
| 2010 | 23.00 AQI index | — | — |
| 2009 | 23.00 AQI index | — | — |
| 2008 | 21.00 AQI index | — | — |
| 2007 | 24.00 AQI index | — | — |
| 2006 | 26.00 AQI index | — | — |
| 2005 | 26.00 AQI index | — | — |
| 2004 | 24.00 AQI index | — | — |
| 2003 | 30.00 AQI index | — | — |
| 2002 | 25.00 AQI index | — | — |
| 2001 | 26.00 AQI index | — | — |
| 2000 | 31.00 AQI index | — | — |
| 1999 | 34.00 AQI index | — | — |
| 1998 | 27.00 AQI index | — | — |
| 1997 | 27.00 AQI index | — | — |
| 1996 | 32.00 AQI index | — | — |
| 1995 | 38.00 AQI index | — | — |
| 1994 | 35.00 AQI index | — | — |
| 1993 | 40.00 AQI index | — | — |
| 1992 | 33.00 AQI index | — | — |
| 1991 | 28.00 AQI index | — | — |
| 1990 | 28.00 AQI index | — | — |
| 1989 | 32.00 AQI index | — | — |
| 1988 | 31.00 AQI index | — | — |
| 1987 | 33.00 AQI index | — | — |
| 1986 | 33.00 AQI index | — | — |
| 1985 | 30.00 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 | 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 | 2.00 days | — | — |
| 2009 | 1.00 days | — | — |
| 2008 | 2.00 days | — | — |
| 2007 | 3.00 days | — | — |
| 2006 | 3.00 days | — | — |
| 2005 | 6.00 days | — | — |
| 2004 | 7.00 days | — | — |
| 2003 | 9.00 days | — | — |
| 2002 | 1.00 days | — | — |
| 2001 | 1.00 days | — | — |
| 2000 | 9.00 days | — | — |
| 1999 | 18.00 days | — | — |
| 1998 | 24.00 days | — | — |
| 1997 | 17.00 days | — | — |
| 1996 | 37.00 days | — | — |
| 1995 | 64.00 days | — | — |
| 1994 | 94.00 days | — | — |
| 1993 | 104.00 days | — | — |
| 1992 | 53.00 days | — | — |
| 1991 | 37.00 days | — | — |
| 1990 | 24.00 days | — | — |
| 1989 | 28.00 days | — | — |
| 1988 | 31.00 days | — | — |
| 1987 | 33.00 days | — | — |
| 1986 | 39.00 days | — | — |
| 1985 | 21.00 days | — | — |
Annual indicator
90th percentile daily AQI
20.00 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 | 20.00 AQI index | provisional-current-year | — |
| 2025 | 22.00 AQI index | — | — |
| 2024 | 19.00 AQI index | — | — |
| 2023 | 26.00 AQI index | — | — |
| 2022 | 23.00 AQI index | — | — |
| 2021 | 24.00 AQI index | — | — |
| 2020 | 20.00 AQI index | — | — |
| 2019 | 22.00 AQI index | — | — |
| 2018 | 21.00 AQI index | — | — |
| 2017 | 20.00 AQI index | — | — |
| 2016 | 24.00 AQI index | — | — |
| 2015 | 30.00 AQI index | — | — |
| 2014 | 29.00 AQI index | — | — |
| 2013 | 26.00 AQI index | — | — |
| 2012 | 27.00 AQI index | — | — |
| 2011 | 32.00 AQI index | — | — |
| 2010 | 36.00 AQI index | — | — |
| 2009 | 36.00 AQI index | — | — |
| 2008 | 40.00 AQI index | — | — |
| 2007 | 45.00 AQI index | — | — |
| 2006 | 45.00 AQI index | — | — |
| 2005 | 50.00 AQI index | — | — |
| 2004 | 52.00 AQI index | — | — |
| 2003 | 54.00 AQI index | — | — |
| 2002 | 35.00 AQI index | — | — |
| 2001 | 48.00 AQI index | — | — |
| 2000 | 73.00 AQI index | — | — |
| 1999 | 67.00 AQI index | — | — |
| 1998 | 48.00 AQI index | — | — |
| 1997 | 43.00 AQI index | — | — |
| 1996 | 51.00 AQI index | — | — |
| 1995 | 56.00 AQI index | — | — |
| 1994 | 78.00 AQI index | — | — |
| 1993 | 83.00 AQI index | — | — |
| 1992 | 53.00 AQI index | — | — |
| 1991 | 53.00 AQI index | — | — |
| 1990 | 52.00 AQI index | — | — |
| 1989 | 57.00 AQI index | — | — |
| 1988 | 54.00 AQI index | — | — |
| 1987 | 56.00 AQI index | — | — |
| 1986 | 56.00 AQI index | — | — |
| 1985 | 58.00 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 | 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 | — | — |
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 | 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 | 1.00 days | — | — |
| 1998 | 0.00 days | — | — |
| 1997 | 0.00 days | — | — |
| 1996 | 0.00 days | — | — |
| 1995 | 0.00 days | — | — |
| 1994 | 14.00 days | — | — |
| 1993 | 19.00 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 | — | — |
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 | — | — |
| 1989 | 0.00 days | — | — |
| 1988 | 0.00 days | — | — |
| 1987 | 0.00 days | — | — |
| 1986 | 0.00 days | — | — |
| 1985 | 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
- 2026-04-26
- 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
- 2026-04-26
- Dataset version
- air-quality-profile-v1
- License
- Original DataOfWorld text
- Attribution
- DataOfWorld
Reference data can change. Verify consequential decisions against the original source.