EnviroNearby

Sedgwick County, Kansas air quality history

Daily Air Quality Index summaries from EPA monitors in Sedgwick, Kansas, 1980–2025.

58%
Good days in 2025
48
Median daily AQI, 2025
1
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 Sedgwick, Kansas on 365 days. 210 of those days (58%) were in the Good range, and the median daily AQI was 48. That median is higher than the typical monitored county in Kansas (median 44 across 11 counties), and higher than the typical monitored U.S. county (40). The main pollutant was fine particles (PM2.5) on 196 days. Across the years with fuller monitoring, the share of Good days fell: an average of 72% in 1980–1982 versus 63% 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 279 of 366 days1980: Moderate 73 of 366 days1980: Unhealthy for Sensitive Groups 11 of 366 days1980: Unhealthy 3 of 366 days19801981: Good 270 of 365 days1981: Moderate 79 of 365 days1981: Unhealthy for Sensitive Groups 14 of 365 days1981: Unhealthy 2 of 365 days1982: Good 243 of 365 days1982: Moderate 106 of 365 days1982: Unhealthy for Sensitive Groups 14 of 365 days1982: Unhealthy 2 of 365 days1983: Good 178 of 365 days1983: Moderate 156 of 365 days1983: Unhealthy for Sensitive Groups 26 of 365 days1983: Unhealthy 5 of 365 days1984: Good 292 of 366 days1984: Moderate 62 of 366 days1984: Unhealthy for Sensitive Groups 12 of 366 days1985: Good 223 of 365 days1985: Moderate 128 of 365 days1985: Unhealthy for Sensitive Groups 13 of 365 days1985: Unhealthy 1 of 365 days19851986: Good 244 of 365 days1986: Moderate 111 of 365 days1986: Unhealthy for Sensitive Groups 9 of 365 days1986: Unhealthy 1 of 365 days1987: Good 264 of 365 days1987: Moderate 91 of 365 days1987: Unhealthy for Sensitive Groups 10 of 365 days1988: Good 225 of 366 days1988: Moderate 112 of 366 days1988: Unhealthy for Sensitive Groups 25 of 366 days1988: Unhealthy 4 of 366 days1989: Good 267 of 365 days1989: Moderate 90 of 365 days1989: Unhealthy for Sensitive Groups 6 of 365 days1989: Unhealthy 2 of 365 days1990: Good 286 of 365 days1990: Moderate 67 of 365 days1990: Unhealthy for Sensitive Groups 8 of 365 days1990: Unhealthy 4 of 365 days19901991: Good 263 of 365 days1991: Moderate 90 of 365 days1991: Unhealthy for Sensitive Groups 11 of 365 days1991: Unhealthy 1 of 365 days1992: Good 315 of 366 days1992: Moderate 47 of 366 days1992: Unhealthy for Sensitive Groups 4 of 366 days1993: Good 311 of 365 days1993: Moderate 54 of 365 days1994: Good 285 of 365 days1994: Moderate 74 of 365 days1994: Unhealthy for Sensitive Groups 6 of 365 days1995: Good 296 of 365 days1995: Moderate 58 of 365 days1995: Unhealthy for Sensitive Groups 10 of 365 days1995: Unhealthy 1 of 365 days19951996: Good 277 of 366 days1996: Moderate 81 of 366 days1996: Unhealthy for Sensitive Groups 6 of 366 days1996: Unhealthy 1 of 366 days1996: Very Unhealthy 1 of 366 days1997: Good 250 of 365 days1997: Moderate 95 of 365 days1997: Unhealthy for Sensitive Groups 19 of 365 days1997: Unhealthy 1 of 365 days1998: Good 234 of 365 days1998: Moderate 102 of 365 days1998: Unhealthy for Sensitive Groups 26 of 365 days1998: Unhealthy 3 of 365 days1999: Good 206 of 365 days1999: Moderate 141 of 365 days1999: Unhealthy for Sensitive Groups 18 of 365 days2000: Good 212 of 366 days2000: Moderate 130 of 366 days2000: Unhealthy for Sensitive Groups 23 of 366 days2000: Unhealthy 1 of 366 days20002001: Good 201 of 365 days2001: Moderate 130 of 365 days2001: Unhealthy for Sensitive Groups 32 of 365 days2001: Unhealthy 2 of 365 days2002: Good 214 of 365 days2002: Moderate 126 of 365 days2002: Unhealthy for Sensitive Groups 23 of 365 days2002: Unhealthy 2 of 365 days2003: Good 222 of 365 days2003: Moderate 129 of 365 days2003: Unhealthy for Sensitive Groups 13 of 365 days2003: Unhealthy 1 of 365 days2004: Good 257 of 366 days2004: Moderate 107 of 366 days2004: Unhealthy for Sensitive Groups 2 of 366 days2005: Good 228 of 365 days2005: Moderate 126 of 365 days2005: Unhealthy for Sensitive Groups 11 of 365 days20052006: Good 246 of 365 days2006: Moderate 106 of 365 days2006: Unhealthy for Sensitive Groups 13 of 365 days2007: Good 285 of 365 days2007: Moderate 79 of 365 days2007: Unhealthy for Sensitive Groups 1 of 365 days2008: Good 266 of 366 days2008: Moderate 99 of 366 days2008: Unhealthy for Sensitive Groups 1 of 366 days2009: Good 267 of 365 days2009: Moderate 92 of 365 days2009: Unhealthy for Sensitive Groups 5 of 365 days2009: Unhealthy 1 of 365 days2010: Good 234 of 365 days2010: Moderate 119 of 365 days2010: Unhealthy for Sensitive Groups 12 of 365 days20102011: Good 186 of 365 days2011: Moderate 158 of 365 days2011: Unhealthy for Sensitive Groups 21 of 365 days2012: Good 210 of 366 days2012: Moderate 127 of 366 days2012: Unhealthy for Sensitive Groups 26 of 366 days2012: Unhealthy 3 of 366 days2013: Good 258 of 365 days2013: Moderate 101 of 365 days2013: Unhealthy for Sensitive Groups 6 of 365 days2014: Good 247 of 365 days2014: Moderate 114 of 365 days2014: Unhealthy for Sensitive Groups 4 of 365 days2015: Good 281 of 365 days2015: Moderate 84 of 365 days20152016: Good 284 of 366 days2016: Moderate 81 of 366 days2016: Unhealthy 1 of 366 days2017: Good 236 of 365 days2017: Moderate 129 of 365 days2018: Good 238 of 365 days2018: Moderate 127 of 365 days2019: Good 282 of 365 days2019: Moderate 83 of 365 days2020: Good 296 of 366 days2020: Moderate 67 of 366 days2020: Unhealthy for Sensitive Groups 3 of 366 days20202021: Good 224 of 365 days2021: Moderate 136 of 365 days2021: Unhealthy for Sensitive Groups 5 of 365 days2022: Good 183 of 365 days2022: Moderate 178 of 365 days2022: Unhealthy for Sensitive Groups 4 of 365 days2023: Good 207 of 365 days2023: Moderate 153 of 365 days2023: Unhealthy for Sensitive Groups 4 of 365 days2023: Unhealthy 1 of 365 days2024: Good 275 of 366 days2024: Moderate 88 of 366 days2024: Unhealthy for Sensitive Groups 2 of 366 days2024: Unhealthy 1 of 366 days2025: Good 210 of 365 days2025: Moderate 154 of 365 days2025: 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 761981: 90th percentile AQI 821982: 90th percentile AQI 871983: 90th percentile AQI 971984: 90th percentile AQI 681985: 90th percentile AQI 821986: 90th percentile AQI 741987: 90th percentile AQI 751988: 90th percentile AQI 901989: 90th percentile AQI 691990: 90th percentile AQI 671991: 90th percentile AQI 741992: 90th percentile AQI 541993: 90th percentile AQI 551994: 90th percentile AQI 671995: 90th percentile AQI 711996: 90th percentile AQI 771997: 90th percentile AQI 841998: 90th percentile AQI 1001999: 90th percentile AQI 822000: 90th percentile AQI 842001: 90th percentile AQI 972002: 90th percentile AQI 972003: 90th percentile AQI 842004: 90th percentile AQI 672005: 90th percentile AQI 802006: 90th percentile AQI 772007: 90th percentile AQI 622008: 90th percentile AQI 632009: 90th percentile AQI 642010: 90th percentile AQI 742011: 90th percentile AQI 902012: 90th percentile AQI 972013: 90th percentile AQI 712014: 90th percentile AQI 642015: 90th percentile AQI 582016: 90th percentile AQI 582017: 90th percentile AQI 602018: 90th percentile AQI 642019: 90th percentile AQI 582020: 90th percentile AQI 562021: 90th percentile AQI 662022: 90th percentile AQI 712023: 90th percentile AQI 672024: 90th percentile AQI 642025: 90th percentile AQI 631980: Median AQI 391981: Median AQI 411982: Median AQI 421983: Median AQI 511984: Median AQI 361985: Median AQI 451986: Median AQI 431987: Median AQI 411988: Median AQI 441989: Median AQI 431990: Median AQI 381991: Median AQI 401992: Median AQI 371993: Median AQI 361994: Median AQI 391995: Median AQI 351996: Median AQI 401997: Median AQI 421998: Median AQI 441999: Median AQI 462000: Median AQI 472001: Median AQI 472002: Median AQI 462003: Median AQI 442004: Median AQI 432005: Median AQI 442006: Median AQI 432007: Median AQI 372008: Median AQI 412009: Median AQI 412010: Median AQI 442011: Median AQI 502012: Median AQI 472013: Median AQI 432014: Median AQI 432015: Median AQI 402016: Median AQI 432017: Median AQI 452018: Median AQI 442019: Median AQI 412020: Median AQI 402021: Median AQI 462022: Median AQI 502023: Median AQI 482024: Median AQI 432025: Median AQI 481980198519901995200020052010201520202025
  • 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)19654%
Ozone16244%
Coarse particles (PM10)72%

Year-by-year data

Annual AQI summary by year
YearDays with AQIGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardousMedian AQI90th pct.Max AQIMain pollutant
202536521015401004863192PM2.5
20243662758821004364180Ozone
202336520715341004867157Ozone
202236518317840005071119PM2.5
202136522413650004666141Ozone
20203662966730004056114Ozone
2019365282830000415897Ozone
201836523812700004464100Ozone
201736523612900004560100Ozone
20163662848101004358195Ozone
2015365281840000405895Ozone
201436524711440004364150Ozone
201336525810160004371115Ozone
2012366210127263004797157Ozone
2011365186158210005090150Ozone
2010365234119120004474122Ozone
20093652679251004164174Ozone
20083662669910004163119Ozone
20073652857910003762109Ozone
2006365246106130004377136Ozone
2005365228126110004480140Ozone
200436625710720004367119Ozone
2003365222129131004484159Ozone
2002365214126232004697159Ozone
2001365201130322004797172Ozone
2000366212130231004784179Ozone
1999365206141180004682150Ozone
19983652341022630044100172Ozone
199736525095191004284154Ozone
19963662778161104077207Ozone
199536529658101003571156Ozone
19943652857460003967119Ozone
1993365311540000365590Ozone
19923663154740003754143Ozone
199136526390111004074154Ozone
19903652866784003867174Ozone
19893652679062004369180Ozone
1988366225112254004490190Ozone
198736526491100004175136Ozone
198636524411191004374185Ozone
1985365223128131004582154CO
198436629262120003668140Ozone
1983365178156265005197174CO
1982365243106142004287170Ozone
198136527079142004182186Ozone
198036627973113003976183Ozone

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 Kansas with a similar median AQI in 2025

All monitored counties in Kansas

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