EnviroNearby

Morgan County, Alabama air quality history

Daily Air Quality Index summaries from EPA monitors in Morgan, Alabama, 1980–2025.

79%
Good days in 2025
41
Median daily AQI, 2025
0
Days above 100 in 2025
365
Days with an AQI in 2025 (of 365)

In 2025, EPA reported a daily Air Quality Index (AQI) for Morgan, Alabama on 365 days. 288 of those days (79%) were in the Good range, and the median daily AQI was 41. 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 fine particles (PM2.5) on 230 days. Across the years with fuller monitoring, the share of Good days rose: an average of 66% in 1980–1982 versus 74% in 2023–2025.

Years with fewer than 120 monitored days (1992, 1994, 1995, 1997, 1998, 1999…) 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%1980: Good 108 of 209 days1980: Moderate 72 of 209 days1980: Unhealthy for Sensitive Groups 29 of 209 days19801981: Good 198 of 270 days1981: Moderate 66 of 270 days1981: Unhealthy for Sensitive Groups 6 of 270 days1982: Good 207 of 286 days1982: Moderate 63 of 286 days1982: Unhealthy for Sensitive Groups 13 of 286 days1982: Unhealthy 3 of 286 days1983: Good 82 of 86 days1983: Moderate 4 of 86 days1989: Good 20 of 22 days1989: Moderate 2 of 22 days1990: Good 54 of 57 days1990: Moderate 3 of 57 days19901991: Good 54 of 60 days1991: Moderate 6 of 60 days1992: Good 61 of 61 days1993: Good 195 of 285 days1993: Moderate 65 of 285 days1993: Unhealthy for Sensitive Groups 22 of 285 days1993: Unhealthy 3 of 285 days1994: Good 102 of 103 days1994: Moderate 1 of 103 days1995: Good 58 of 59 days1995: Moderate 1 of 59 days19951996: Good 153 of 248 days1996: Moderate 72 of 248 days1996: Unhealthy for Sensitive Groups 16 of 248 days1996: Unhealthy 7 of 248 days1997: Good 58 of 59 days1997: Moderate 1 of 59 days1998: Good 42 of 42 days1999: Good 16 of 102 days1999: Moderate 79 of 102 days1999: Unhealthy for Sensitive Groups 5 of 102 days1999: Unhealthy 2 of 102 days2000: Good 69 of 222 days2000: Moderate 105 of 222 days2000: Unhealthy for Sensitive Groups 41 of 222 days2000: Unhealthy 7 of 222 days20002001: Good 144 of 271 days2001: Moderate 110 of 271 days2001: Unhealthy for Sensitive Groups 16 of 271 days2001: Unhealthy 1 of 271 days2002: Good 129 of 271 days2002: Moderate 111 of 271 days2002: Unhealthy for Sensitive Groups 27 of 271 days2002: Unhealthy 4 of 271 days2003: Good 129 of 284 days2003: Moderate 134 of 284 days2003: Unhealthy for Sensitive Groups 20 of 284 days2003: Unhealthy 1 of 284 days2004: Good 144 of 285 days2004: Moderate 132 of 285 days2004: Unhealthy for Sensitive Groups 9 of 285 days2005: Good 133 of 283 days2005: Moderate 131 of 283 days2005: Unhealthy for Sensitive Groups 19 of 283 days20052006: Good 130 of 284 days2006: Moderate 136 of 284 days2006: Unhealthy for Sensitive Groups 18 of 284 days2007: Good 113 of 284 days2007: Moderate 142 of 284 days2007: Unhealthy for Sensitive Groups 27 of 284 days2007: Unhealthy 2 of 284 days2008: Good 177 of 285 days2008: Moderate 108 of 285 days2009: Good 113 of 321 days2009: Moderate 208 of 321 days2010: Good 109 of 361 days2010: Moderate 249 of 361 days2010: Unhealthy for Sensitive Groups 3 of 361 days20102011: Good 169 of 280 days2011: Moderate 109 of 280 days2011: Unhealthy for Sensitive Groups 2 of 280 days2012: Good 195 of 283 days2012: Moderate 82 of 283 days2012: Unhealthy for Sensitive Groups 6 of 283 days2013: Good 215 of 282 days2013: Moderate 67 of 282 days2014: Good 217 of 283 days2014: Moderate 66 of 283 days2015: Good 241 of 365 days2015: Moderate 124 of 365 days20152016: Good 240 of 365 days2016: Moderate 123 of 365 days2016: Unhealthy for Sensitive Groups 2 of 365 days2017: Good 264 of 364 days2017: Moderate 100 of 364 days2018: Good 251 of 364 days2018: Moderate 113 of 364 days2019: Good 247 of 365 days2019: Moderate 118 of 365 days2020: Good 251 of 355 days2020: Moderate 104 of 355 days20202021: Good 209 of 365 days2021: Moderate 156 of 365 days2022: Good 208 of 365 days2022: Moderate 156 of 365 days2022: Unhealthy for Sensitive Groups 1 of 365 days2023: Good 259 of 364 days2023: Moderate 103 of 364 days2023: Unhealthy for Sensitive Groups 2 of 364 days2024: Good 264 of 366 days2024: Moderate 102 of 366 days2025: Good 288 of 365 days2025: Moderate 77 of 365 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 year0501001501980: 90th percentile AQI 1051981: 90th percentile AQI 741982: 90th percentile AQI 841983: 90th percentile AQI 451989: 90th percentile AQI 351990: 90th percentile AQI 391991: 90th percentile AQI 511992: 90th percentile AQI 381993: 90th percentile AQI 1001994: 90th percentile AQI 361995: 90th percentile AQI 371996: 90th percentile AQI 1001997: 90th percentile AQI 381998: 90th percentile AQI 381999: 90th percentile AQI 972000: 90th percentile AQI 1212001: 90th percentile AQI 932002: 90th percentile AQI 1052003: 90th percentile AQI 932004: 90th percentile AQI 772005: 90th percentile AQI 932006: 90th percentile AQI 932007: 90th percentile AQI 1012008: 90th percentile AQI 692009: 90th percentile AQI 682010: 90th percentile AQI 742011: 90th percentile AQI 742012: 90th percentile AQI 712013: 90th percentile AQI 572014: 90th percentile AQI 582015: 90th percentile AQI 612016: 90th percentile AQI 592017: 90th percentile AQI 572018: 90th percentile AQI 592019: 90th percentile AQI 582020: 90th percentile AQI 582021: 90th percentile AQI 632022: 90th percentile AQI 632023: 90th percentile AQI 612024: 90th percentile AQI 582025: 90th percentile AQI 551980: Median AQI 471981: Median AQI 391982: Median AQI 411983: Median AQI 271989: Median AQI 211990: Median AQI 211991: Median AQI 231992: Median AQI 211993: Median AQI 431994: Median AQI 261995: Median AQI 221996: Median AQI 461997: Median AQI 181998: Median AQI 221999: Median AQI 692000: Median AQI 662001: Median AQI 502002: Median AQI 522003: Median AQI 532004: Median AQI 502005: Median AQI 512006: Median AQI 532007: Median AQI 572008: Median AQI 472009: Median AQI 542010: Median AQI 562011: Median AQI 462012: Median AQI 452013: Median AQI 422014: Median AQI 422015: Median AQI 442016: Median AQI 462017: Median AQI 432018: Median AQI 442019: Median AQI 452020: Median AQI 412021: Median AQI 472022: Median AQI 472023: Median AQI 432024: Median AQI 442025: Median AQI 41198019901995200020052010201520202025
  • 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
Fine particles (PM2.5)23063%
Ozone13537%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
2025365288770000415571PM2.5
20243662641020000445881PM2.5
202336425910320004361140PM2.5
202236520815610004763111PM2.5
20213652091560000476397PM2.5
20203552511040000415875PM2.5
20193652471180000455893PM2.5
201836425111300004459100PM2.5
20173642641000000435780PM2.5
201636524012320004659107PM2.5
20153652411240000446193PM2.5
2014283217660000425893Ozone
2013282215670000425787Ozone
20122831958260004571129Ozone
201128016910920004674115Ozone
201036110924930005674108PM2.5
20093211132080000546892PM2.5
20082851771080000476997Ozone
20072841131422720057101172Ozone
2006284130136180005393136Ozone
2005283133131190005193136Ozone
200428514413290005077130Ozone
2003284129134201005393161Ozone
20022711291112740052105174Ozone
2001271144110161005093169Ozone
2000222691054170066121187Ozone
1999102167952006997157PM2.5
1998424200000223849PM10
1997595810000183851PM10
1996248153721670046100200Ozone
1995595810000223756PM10
199410310210000263656Ozone
1993285195652230043100192Ozone
1992616100000213846PM10
1991605460000235157PM10
1990575430000213954PM10
1989222020000213556PM10
1983868240000274593Ozone
198228620763133004184161Ozone
19812701986660003974122Ozone
1980209108722900047105148NO2

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 1980–2025 (EPA download page). EPA file dates: 2026-06-26. Imported into EnviroNearby November 5, 2026. How we use this data · Report a problem