EnviroNearby

Russell County, Alabama air quality history

Daily Air Quality Index summaries from EPA monitors in Russell, Alabama, 1989–2025.

79%
Good days in 2025
40
Median daily AQI, 2025
0
Days above 100 in 2025
281
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Russell, Alabama on 281 days. 223 of those days (79%) were in the Good range, and the median daily AQI was 40. That median is about the same as the typical monitored county in Alabama (median 41 across 14 counties), and about the same as the typical monitored U.S. county (40). The main pollutant was ozone on 189 days. Across the years with fuller monitoring, the share of Good days rose: an average of 53% in 2003–2005 versus 78% in 2023–2025.

EPA did not report an AQI for every day of 2025 here (281 of 365 days). Figures describe monitored days only; seasonal monitoring (for example, ozone measured only in warmer months) can make a county look cleaner or dirtier than a full-year record would.

Years with fewer than 120 monitored days (1997, 1998, 1999, 2000, 2001, 2002…) are shown in the table but left out of comparisons and trend statements.

How the days broke down each year

Each bar is one year. The colored segments show the share of monitored days that fell in each AQI category.

Share of monitored days in each AQI category, by year0%25%50%75%100%1989: Good 43 of 43 days19891990: Good 53 of 56 days1990: Moderate 3 of 56 days1991: Good 53 of 56 days1991: Moderate 3 of 56 days1992: Good 57 of 58 days1992: Moderate 1 of 58 days1993: Good 58 of 59 days1993: Moderate 1 of 59 days1994: Good 61 of 61 days19941995: Good 59 of 60 days1995: Moderate 1 of 60 days1996: Good 56 of 57 days1996: Moderate 1 of 57 days1997: Good 56 of 58 days1997: Moderate 2 of 58 days1998: Good 56 of 58 days1998: Moderate 2 of 58 days1999: Good 15 of 104 days1999: Moderate 81 of 104 days1999: Unhealthy for Sensitive Groups 7 of 104 days1999: Unhealthy 1 of 104 days19992000: Good 25 of 118 days2000: Moderate 86 of 118 days2000: Unhealthy for Sensitive Groups 7 of 118 days2001: Good 21 of 110 days2001: Moderate 88 of 110 days2001: Unhealthy for Sensitive Groups 1 of 110 days2002: Good 25 of 105 days2002: Moderate 79 of 105 days2002: Unhealthy for Sensitive Groups 1 of 105 days2003: Good 165 of 280 days2003: Moderate 113 of 280 days2003: Unhealthy for Sensitive Groups 2 of 280 days2004: Good 150 of 280 days2004: Moderate 123 of 280 days2004: Unhealthy for Sensitive Groups 7 of 280 days20042005: Good 135 of 285 days2005: Moderate 141 of 285 days2005: Unhealthy for Sensitive Groups 8 of 285 days2005: Unhealthy 1 of 285 days2006: Good 121 of 280 days2006: Moderate 150 of 280 days2006: Unhealthy for Sensitive Groups 9 of 280 days2007: Good 73 of 354 days2007: Moderate 263 of 354 days2007: Unhealthy for Sensitive Groups 15 of 354 days2007: Unhealthy 3 of 354 days2008: Good 88 of 342 days2008: Moderate 249 of 342 days2008: Unhealthy for Sensitive Groups 5 of 342 days2009: Good 138 of 345 days2009: Moderate 206 of 345 days2009: Unhealthy for Sensitive Groups 1 of 345 days20092010: Good 146 of 287 days2010: Moderate 139 of 287 days2010: Unhealthy for Sensitive Groups 2 of 287 days2011: Good 145 of 278 days2011: Moderate 131 of 278 days2011: Unhealthy for Sensitive Groups 2 of 278 days2012: Good 173 of 284 days2012: Moderate 110 of 284 days2012: Unhealthy for Sensitive Groups 1 of 284 days2013: Good 201 of 284 days2013: Moderate 83 of 284 days2014: Good 192 of 284 days2014: Moderate 91 of 284 days2014: Unhealthy for Sensitive Groups 1 of 284 days20142015: Good 110 of 337 days2015: Moderate 225 of 337 days2015: Unhealthy for Sensitive Groups 2 of 337 days2016: Good 165 of 257 days2016: Moderate 92 of 257 days2017: Good 184 of 311 days2017: Moderate 127 of 311 days2018: Good 199 of 364 days2018: Moderate 165 of 364 days2019: Good 195 of 363 days2019: Moderate 168 of 363 days20192020: Good 236 of 365 days2020: Moderate 129 of 365 days2021: Good 214 of 364 days2021: Moderate 147 of 364 days2021: Unhealthy for Sensitive Groups 3 of 364 days2022: Good 208 of 364 days2022: Moderate 156 of 364 days2023: Good 233 of 318 days2023: Moderate 85 of 318 days2024: Good 223 of 277 days2024: Moderate 54 of 277 days20242025: Good 223 of 281 days2025: Moderate 58 of 281 days2025
  • Good
  • Moderate
  • Unhealthy for Sensitive Groups
  • Unhealthy
  • Very Unhealthy
  • Hazardous

Typical and high-end AQI over time

The median is the middle day of the year. The 90th percentile is the level that only the highest 10% of days exceeded.

Median and 90th-percentile daily AQI, by year0501001989: 90th percentile AQI 351990: 90th percentile AQI 431991: 90th percentile AQI 371992: 90th percentile AQI 401993: 90th percentile AQI 341994: 90th percentile AQI 411995: 90th percentile AQI 431996: 90th percentile AQI 311997: 90th percentile AQI 361998: 90th percentile AQI 421999: 90th percentile AQI 982000: 90th percentile AQI 932001: 90th percentile AQI 862002: 90th percentile AQI 792003: 90th percentile AQI 732004: 90th percentile AQI 782005: 90th percentile AQI 862006: 90th percentile AQI 842007: 90th percentile AQI 902008: 90th percentile AQI 772009: 90th percentile AQI 702010: 90th percentile AQI 742011: 90th percentile AQI 712012: 90th percentile AQI 702013: 90th percentile AQI 612014: 90th percentile AQI 622015: 90th percentile AQI 692016: 90th percentile AQI 622017: 90th percentile AQI 662018: 90th percentile AQI 642019: 90th percentile AQI 632020: 90th percentile AQI 612021: 90th percentile AQI 652022: 90th percentile AQI 612023: 90th percentile AQI 632024: 90th percentile AQI 552025: 90th percentile AQI 551989: Median AQI 241990: Median AQI 251991: Median AQI 231992: Median AQI 231993: Median AQI 231994: Median AQI 231995: Median AQI 261996: Median AQI 191997: Median AQI 231998: Median AQI 291999: Median AQI 682000: Median AQI 652001: Median AQI 622002: Median AQI 602003: Median AQI 462004: Median AQI 492005: Median AQI 522006: Median AQI 542007: Median AQI 612008: Median AQI 582009: Median AQI 542010: Median AQI 502011: Median AQI 492012: Median AQI 462013: Median AQI 432014: Median AQI 432015: Median AQI 542016: Median AQI 452017: Median AQI 462018: Median AQI 482019: Median AQI 482020: Median AQI 442021: Median AQI 472022: Median AQI 462023: Median AQI 432024: Median AQI 422025: Median AQI 40198919941999200420092014201920242025
  • Median daily AQI
  • 90th-percentile daily AQI

Main pollutant by day, 2025

On each monitored day, the AQI reflects whichever measured pollutant had the highest index. This counts how many days each pollutant set the AQI. A pollutant that was not measured here cannot appear.

PollutantDays as main pollutantShare of monitored days
Ozone18967%
Fine particles (PM2.5)9233%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025281223580000405588Ozone
2024277223540000425598Ozone
2023318233850000436393Ozone
20223642081560000466197PM2.5
202136421414730004765142PM2.5
20203652361290000446199PM2.5
20193631951680000486384PM2.5
20183641991650000486499PM2.5
20173111841270000466688PM2.5
20162571659200004562100Ozone
201533711022520005469141PM2.5
20142841929110004362108Ozone
2013284201830000436193Ozone
201228417311010004670101Ozone
201127814513120004971126Ozone
201028714613920005074108Ozone
200934513820610005470112PM2.5
20083428824950005877121PM2.5
200735473263153006190167PM2.5
200628012115090005484143Ozone
200528513514181005286156Ozone
200428015012370004978129Ozone
200328016511320004673115Ozone
2002105257910006079117PM2.5
2001110218810006286125PM2.5
2000118258670006593144PM2.5
1999104158171006898154PM2.5
1998585620000294251PM10
1997585620000233657PM10
1996575610000193155PM10
1995605910000264354PM10
1994616100000234148PM10
1993595810000233460PM10
1992585710000234051PM10
1991565330000233761PM10
1990565330000254357PM10
1989434300000243545PM10

What this data can and can’t tell you

It is a county-level summary. EPA reports one AQI per day for the county, based on the monitors operating there. Air at a particular street, school or home can differ, especially near roads, industry or wildfire smoke.

It is not a health assessment. The AQI is EPA’s scale for communicating daily air quality. A county’s history can’t tell you what the health risk is for any particular person. For daily conditions and health guidance, see AirNow.

Rules change over time. EPA has revised AQI breakpoints, most recently for fine particles in 2024, so some year-to-year change can reflect the scale rather than the air.

Counties in Alabama with a similar median AQI in 2025

All monitored counties in Alabama

Source: U.S. EPA AirData, “Annual AQI by County” files for 1989–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem