EnviroNearby

Jackson County, Missouri air quality history

Daily Air Quality Index summaries from EPA monitors in Jackson, Missouri, 1980–2025.

57%
Good days in 2025
47
Median daily AQI, 2025
3
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 Jackson, Missouri on 365 days. 209 of those days (57%) were in the Good range, and the median daily AQI was 47. That median is higher than the typical monitored county in Missouri (median 41 across 19 counties), and higher than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 287 days. Across the years with fuller monitoring, the share of Good days fell: an average of 83% in 1980–1982 versus 54% in 2023–2025.

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 200 of 303 days1980: Moderate 102 of 303 days1980: Unhealthy for Sensitive Groups 1 of 303 days19801981: Good 311 of 331 days1981: Moderate 14 of 331 days1981: Unhealthy for Sensitive Groups 2 of 331 days1981: Unhealthy 2 of 331 days1981: Very Unhealthy 2 of 331 days1982: Good 323 of 365 days1982: Moderate 38 of 365 days1982: Unhealthy for Sensitive Groups 3 of 365 days1982: Very Unhealthy 1 of 365 days1983: Good 356 of 365 days1983: Moderate 9 of 365 days1984: Good 320 of 366 days1984: Moderate 40 of 366 days1984: Unhealthy for Sensitive Groups 4 of 366 days1984: Unhealthy 1 of 366 days1984: Very Unhealthy 1 of 366 days1985: Good 284 of 365 days1985: Moderate 72 of 365 days1985: Unhealthy for Sensitive Groups 9 of 365 days19851986: Good 346 of 365 days1986: Moderate 19 of 365 days1987: Good 344 of 365 days1987: Moderate 21 of 365 days1988: Good 352 of 366 days1988: Moderate 13 of 366 days1988: Unhealthy for Sensitive Groups 1 of 366 days1989: Good 295 of 365 days1989: Moderate 59 of 365 days1989: Unhealthy for Sensitive Groups 8 of 365 days1989: Unhealthy 3 of 365 days1990: Good 313 of 365 days1990: Moderate 46 of 365 days1990: Unhealthy for Sensitive Groups 5 of 365 days1990: Unhealthy 1 of 365 days19901991: Good 271 of 365 days1991: Moderate 74 of 365 days1991: Unhealthy for Sensitive Groups 18 of 365 days1991: Unhealthy 2 of 365 days1992: Good 318 of 366 days1992: Moderate 41 of 366 days1992: Unhealthy for Sensitive Groups 6 of 366 days1992: Unhealthy 1 of 366 days1993: Good 324 of 365 days1993: Moderate 36 of 365 days1993: Unhealthy for Sensitive Groups 5 of 365 days1994: Good 327 of 365 days1994: Moderate 36 of 365 days1994: Unhealthy for Sensitive Groups 2 of 365 days1995: Good 262 of 365 days1995: Moderate 85 of 365 days1995: Unhealthy for Sensitive Groups 18 of 365 days19951996: Good 295 of 366 days1996: Moderate 67 of 366 days1996: Unhealthy for Sensitive Groups 4 of 366 days1997: Good 317 of 365 days1997: Moderate 43 of 365 days1997: Unhealthy for Sensitive Groups 5 of 365 days1998: Good 284 of 365 days1998: Moderate 74 of 365 days1998: Unhealthy for Sensitive Groups 7 of 365 days1999: Good 124 of 365 days1999: Moderate 223 of 365 days1999: Unhealthy for Sensitive Groups 16 of 365 days1999: Unhealthy 2 of 365 days2000: Good 121 of 366 days2000: Moderate 243 of 366 days2000: Unhealthy for Sensitive Groups 2 of 366 days20002001: Good 128 of 365 days2001: Moderate 234 of 365 days2001: Unhealthy for Sensitive Groups 3 of 365 days2002: Good 140 of 365 days2002: Moderate 222 of 365 days2002: Unhealthy for Sensitive Groups 3 of 365 days2003: Good 118 of 347 days2003: Moderate 226 of 347 days2003: Unhealthy for Sensitive Groups 2 of 347 days2003: Unhealthy 1 of 347 days2004: Good 136 of 366 days2004: Moderate 229 of 366 days2004: Unhealthy for Sensitive Groups 1 of 366 days2005: Good 110 of 364 days2005: Moderate 249 of 364 days2005: Unhealthy for Sensitive Groups 5 of 364 days20052006: Good 96 of 364 days2006: Moderate 268 of 364 days2007: Good 99 of 365 days2007: Moderate 266 of 365 days2008: Good 141 of 366 days2008: Moderate 225 of 366 days2009: Good 212 of 365 days2009: Moderate 151 of 365 days2009: Unhealthy for Sensitive Groups 2 of 365 days2010: Good 114 of 365 days2010: Moderate 250 of 365 days2010: Unhealthy for Sensitive Groups 1 of 365 days20102011: Good 142 of 365 days2011: Moderate 221 of 365 days2011: Unhealthy for Sensitive Groups 2 of 365 days2012: Good 146 of 366 days2012: Moderate 220 of 366 days2013: Good 168 of 365 days2013: Moderate 197 of 365 days2014: Good 190 of 365 days2014: Moderate 174 of 365 days2014: Unhealthy for Sensitive Groups 1 of 365 days2015: Good 200 of 365 days2015: Moderate 163 of 365 days2015: Unhealthy for Sensitive Groups 2 of 365 days20152016: Good 213 of 366 days2016: Moderate 152 of 366 days2016: Unhealthy for Sensitive Groups 1 of 366 days2017: Good 173 of 365 days2017: Moderate 192 of 365 days2018: Good 223 of 365 days2018: Moderate 142 of 365 days2019: Good 192 of 365 days2019: Moderate 173 of 365 days2020: Good 175 of 366 days2020: Moderate 188 of 366 days2020: Unhealthy for Sensitive Groups 2 of 366 days2020: Unhealthy 1 of 366 days20202021: Good 132 of 365 days2021: Moderate 228 of 365 days2021: Unhealthy for Sensitive Groups 5 of 365 days2022: Good 160 of 365 days2022: Moderate 205 of 365 days2023: Good 171 of 365 days2023: Moderate 192 of 365 days2023: Unhealthy for Sensitive Groups 1 of 365 days2023: Unhealthy 1 of 365 days2024: Good 217 of 366 days2024: Moderate 148 of 366 days2024: Unhealthy for Sensitive Groups 1 of 366 days2025: Good 209 of 365 days2025: Moderate 153 of 365 days2025: Unhealthy for Sensitive Groups 1 of 365 days2025: Unhealthy 1 of 365 days2025: Very Unhealthy 1 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 year0501001980: 90th percentile AQI 691981: 90th percentile AQI 341982: 90th percentile AQI 521983: 90th percentile AQI 321984: 90th percentile AQI 521985: 90th percentile AQI 711986: 90th percentile AQI 451987: 90th percentile AQI 441988: 90th percentile AQI 431989: 90th percentile AQI 641990: 90th percentile AQI 571991: 90th percentile AQI 871992: 90th percentile AQI 581993: 90th percentile AQI 511994: 90th percentile AQI 511995: 90th percentile AQI 841996: 90th percentile AQI 641997: 90th percentile AQI 611998: 90th percentile AQI 711999: 90th percentile AQI 902000: 90th percentile AQI 752001: 90th percentile AQI 752002: 90th percentile AQI 772003: 90th percentile AQI 732004: 90th percentile AQI 702005: 90th percentile AQI 772006: 90th percentile AQI 712007: 90th percentile AQI 732008: 90th percentile AQI 692009: 90th percentile AQI 632010: 90th percentile AQI 712011: 90th percentile AQI 702012: 90th percentile AQI 662013: 90th percentile AQI 662014: 90th percentile AQI 662015: 90th percentile AQI 632016: 90th percentile AQI 622017: 90th percentile AQI 652018: 90th percentile AQI 592019: 90th percentile AQI 652020: 90th percentile AQI 652021: 90th percentile AQI 682022: 90th percentile AQI 632023: 90th percentile AQI 682024: 90th percentile AQI 602025: 90th percentile AQI 631980: Median AQI 381981: Median AQI 91982: Median AQI 201983: Median AQI 111984: Median AQI 331985: Median AQI 351986: Median AQI 311987: Median AQI 251988: Median AQI 271989: Median AQI 361990: Median AQI 341991: Median AQI 381992: Median AQI 321993: Median AQI 311994: Median AQI 321995: Median AQI 411996: Median AQI 391997: Median AQI 321998: Median AQI 351999: Median AQI 572000: Median AQI 562001: Median AQI 562002: Median AQI 552003: Median AQI 552004: Median AQI 542005: Median AQI 572006: Median AQI 562007: Median AQI 562008: Median AQI 542009: Median AQI 442010: Median AQI 552011: Median AQI 542012: Median AQI 532013: Median AQI 522014: Median AQI 492015: Median AQI 472016: Median AQI 472017: Median AQI 522018: Median AQI 442019: Median AQI 492020: Median AQI 512021: Median AQI 532022: Median AQI 522023: Median AQI 522024: Median AQI 462025: Median AQI 471980198519901995200020052010201520202025
  • 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)28779%
Coarse particles (PM10)4613%
Nitrogen dioxide (NO₂)329%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
202536520915311104763293PM2.5
202436621714810004660109PM2.5
202336517119211005268155PM2.5
20223651602050000526393PM2.5
202136513222850005368147PM2.5
202036617518821005165159PM2.5
20193651921730000496593PM2.5
20183652231420000445977PM2.5
20173651731920000526598PM2.5
201636621315210004762105PM2.5
201536520016320004763117PM2.5
201436519017410004966108PM2.5
20133651681970000526693PM2.5
20123661462200000536692PM2.5
201136514222120005470104PM2.5
201036511425010005571119PM2.5
200936521215120004463116PM2.5
20083661412250000546999PM2.5
2007365992660000567399PM2.5
2006364962680000567188PM2.5
200536411024950005777110PM2.5
200436613622910005470104PM2.5
200334711822621005573162PM2.5
200236514022230005577113PM2.5
200136512823430005675111PM2.5
200036612124320005675117PM2.5
1999365124223162005790200PM2.5
19983652847470003571126Ozone
19973653174350003261112Ozone
19963662956740003964126Ozone
199536526285180004184136Ozone
19943653273620003251133Ozone
19933653243650003151126Ozone
19923663184161003258156Ozone
199136527174182003887190Ozone
19903653134651003457166Ozone
19893652955983003664161Ozone
19883663521310002743105CO
1987365344210000254499CO
1986365346190000314578CO
19853652847290003571115CO
19843663204041103352251CO
198336535690000113265CO
19823653233830102052218CO
1981331311142220934248CO
198030320010210003869103CO

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 Missouri with a similar median AQI in 2025

All monitored counties in Missouri

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