Median AQI
28
Good
Kansas · County air quality · 2025
Ford County, Kansas
Median AQI 28 (Good). 89.8% of monitored days rated Good, direct from EPA Air Quality System stations.
- 28
- Median AQI
- 89.8%
- Good-air days
- 0
- Unhealthy days
- 79%
- Cleaner than US counties
Ford County's 2025 annual median AQI is 28 (Good), with 89.8% Good days
According to the U.S. EPA Air Quality System, Ford County, Kansas posted a 2025 median AQI of 28 (Good) across 362 monitored days, with 89.8% rated Good and 0 unhealthy or worse. This is an annual comparison, not today's advisory.
Data source EPA Air Quality System (AQS)
- Cleaner than US
- Ford County's 89.8% Good-day share places it cleaner than 79% of US counties in 2025.
- Closest median-AQI peer
- Cass County (82.7% Good, median AQI 28) is the closest nationwide median-AQI peer to Ford County.
- 2020–2025 trend
- Ford County's floor-qualifying Good-day share is worsening from 2020 to 2025 (98.3% → 89.8%).
- Median AQI
- Median AQI: 28
The verdict
According to EPA Air Quality System monitoring data, Ford County's air is good on balance, cleaner than most US counties, a median AQI of 28 with 89.8% of 362 monitored days in the Good band, driven mainly by PM2.5.
- 28
- median AQI · Good
- 89.8%
- days rated Good
- PM2.5
- main pollutant
- 79%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 115.
Annual release change
What changed in the 2025 EPA annual release
- Ford County's peak single-day AQI rose from 80 to 115 between the 2024 and 2025 EPA annual releases, a change of +35 points.
- Ford County's Good-day share rose from 86.6% to 89.8% between the 2024 and 2025 EPA annual releases, a change of +3.2 percentage points.
Data updated August 2026
- Good · 325 d · 89.8%
- Moderate · 36 d · 9.9%
- USG · 1 d · 0.3%
How did Ford County's air break down in 2025?
Across 362 monitored days, 325 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 115 (USG).
EPA AQS →Air quality data from EPA Air Quality System (2025). 362 days monitored. Median AQI: 28 (Good).
Insights: Ford County, Kansas. EPA monitors recorded a median Air Quality Index of 28 across 362 measured days in 2025, earning a Good classification and a Good health grade. Of those days, 325 (90%) fell in the Good band (AQI 0–50), 36 (10%) registered Moderate readings, and 1 (0%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 51, while the worst single-day peak hit 115 (USG). Residents averaged about 26.9 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as PM2.5 (296 days), PM10 (66 days). Across the 2020–2025 trend window, the share of monitored days rated Good shifted by -8.6 points (measured against 302 monitored days in 2020 and 362 in 2025, so raw day counts are not comparable) and the median AQI moved +17 points, placing the multi-year trajectory at worsening. The worst single reading over the 2020–2025 window was AQI 115, usg but never Unhealthy. Nearby counties show comparable readings: Chase (82.8% good, AQI 31); Douglas (92.9% good, AQI 37); Johnson (68.5% good, AQI 44); Leavenworth (94.0% good, AQI 34); Neosho (64.1% good, AQI 44); Sedgwick (57.5% good, AQI 48).
Air Quality Summary
Good Days
89.8%
325 of 362 monitored days
14.8pp vs 75% target
Max AQI Recorded
115
USG
Health Grade
Good
90th-pct AQI 51
Ford County, Good days share 89.8%
National avg
Share of monitored days at AQI 0-50 (Good band).
Ford County, Unhealthy-or-worse share 0.0%
National avg
Share of monitored days above AQI 150 (Unhealthy or worse). Bar maxes at 10% (worst-county ceiling).
AQI Day Breakdown (2025)
Distribution of 362 monitored days across EPA AQI categories.
Good
325
90%
Moderate
36
10%
USG
1
0%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Ford County.
- PM2.5 · 296 days · 81.8%
- PM10 · 66 days · 18.2%
Health Impact Assessment
Good
Ford County's air quality is rated Good based on 89.8% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 89.8% of monitored days in 2025, with a median AQI of 28. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is PM2.5, driving AQI on 296 of 362 monitored days.
5-Year Air Quality Trend
Air quality is worsening in Ford County. Highest Good-day share: 2021 (98.6%, 353 of 358 monitored days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 297 | 5 | 0 | 0 | 11 | 79 |
| 2021 | 353 | 5 | 0 | 0 | 17 | 80 |
| 2022 | 339 | 21 | 1 | 1 | 19 | 169 |
| 2023 | 289 | 18 | 1 | 0 | 15 | 147 |
| 2024 | 317 | 49 | 0 | 0 | 26 | 80 |
| 2025 | 325 | 36 | 1 | 0 | 28 | 115 |
How does Ford County compare?
How Ford County compares
Good-day share better than US avg
Ford County 89.8%
Cass County, Minnesota 82.7%
US average 76.0%
Median AQI better than US avg
Ford County 28
Cass County, Minnesota 28
US average 39
Unhealthy days / yr better than US avg
Ford County 0
Cass County, Minnesota 8
US average 1
Counties with a similar median AQI
Nationwide peers within about the same annual median AQI as Ford County (28), not geographic neighbors.
Cass County, Minnesota
Median AQI 28 · 82.7% Good-day share
Crook County, Oregon
Median AQI 28 · 72.9% Good-day share
Grant County, Washington
Median AQI 28 · 79.7% Good-day share
Harney County, Oregon
Median AQI 28 · 71.5% Good-day share
Jefferson County, Oregon
Median AQI 28 · 74.0% Good-day share
Silver Bow County, Montana
Median AQI 28 · 84.9% Good-day share
Same primary pollutant: PM2.5
PM2.5 led the AQI on the most monitored days here. These peers share that driver and the closest Good-day share (a second relationship type beyond median-AQI neighbors).
Putnam County, Tennessee
90.0% Good-day share · median AQI 30
Sherman County, Kansas
90.1% Good-day share · median AQI 27
Mono County, California
90.1% Good-day share · median AQI 21
Deschutes County, Oregon
89.3% Good-day share · median AQI 23
Dawson County, Montana
90.3% Good-day share · median AQI 18
Cowlitz County, Washington
90.4% Good-day share · median AQI 22
Kansas counties on the map
Geographic containment only, other monitored counties in Kansas, independent of AQI or pollutant match.
What Ford County's air means for you
The air here stays in the breathable range year-round, with PM2.5 the main thing to watch.
- Sensitive groups (asthma, heart conditions, children, older adults) should check the AQI on high-PM2.5 days, the guide explains what a median of 28 means for exposure. Health guidance
- See how Ford County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Ford County with its Kansas neighbours before drawing a conclusion about the region. All of Kansas
Based on 362 EPA-monitored days in 2025; figures reflect only days the monitors reported. Source: EPA Air Quality System annual summaries.
Keep exploring the annual AQI record
Air-quality reading list
Frequently Asked Questions
What is the air quality in Ford County, Kansas? ▼
Ford County has a median Air Quality Index (AQI) of 28, rated "Good." 89.8% of monitored days (325 out of 362) had good air quality in 2025.
What is the main pollutant in Ford County? ▼
The primary pollutant in Ford County is Fine Particles (PM2.5), which was the main AQI driver on 296 days (82% of monitored days). Penetrates deep into lungs and bloodstream. Linked to heart disease and premature death.
How many unhealthy air days does Ford County have? ▼
In 2025, Ford County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 115.
Is the air quality in Ford County getting better or worse? ▼
Air quality in Ford County is worsening across floor-qualifying years (2020-2025); years with fewer than 100 monitored days are excluded from that direction. Highest qualifying Good-day share: 2021 at 98.6% (353 of 358 days). Lowest qualifying Good-day share: 2024 at 86.6% (317 of 366 days).
What does AQI 28 mean for health? ▼
Ford County's median AQI of 28 falls in the "Good" category. See the AQI category guide for what each range means for health.
How does Ford County compare to other counties in Kansas? ▼
Ford County has 89.8% good air days. Nearby counties in Kansas: Chase (82.8% good), Douglas (92.9% good), Johnson (68.5% good), Leavenworth (94.0% good), Neosho (64.1% good), Sedgwick (57.5% good).
What is the 90th percentile AQI in Ford County? ▼
The 90th percentile AQI for Ford County is 51, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 115 (USG).
Data Sources
Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by County dataset, 2020–2025 (aqs.epa.gov). For current conditions (not shown here — this page is historical annual data), see EPA AirNow (airnow.gov). See our methodology for how AQI, median, and coverage figures are computed.
Informational only, not professional advice. Data from EPA AQS. See our disclaimer. Spotted a figure that looks wrong? Report a correction.
Source: U.S. EPA Air Quality System (AQS) Annual AQI by county summary files for Ford County, Kansas · 2020–2025
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Every figure on PlainAirData is rendered directly from EPA AQS air-quality monitoring data, no number is typed in by an editor. This page draws directly on EPA AQS air-quality monitoring data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.