Median AQI
49
Good
Georgia · County air quality · 2025
Fulton County, Georgia
Median AQI 49 (Good). 55.8% of monitored days rated Good, direct from EPA Air Quality System stations.
- 49
- Median AQI
- 55.8%
- Good-air days
- 0
- Unhealthy days
- 10%
- Cleaner than US counties
The verdict
According to EPA Air Quality System monitoring data, Fulton County's air is good on balance, among the more polluted 10% of US counties, a median AQI of 49 with 55.8% of 274 monitored days in the Good band, driven mainly by PM2.5.
- 49
- median AQI · Good
- 55.8%
- days rated Good
- PM2.5
- main pollutant
- 10%
- cleaner than US counties
Not one day crossed into the Unhealthy tier; the worst single reading was AQI 129.
Data updated July 2026
- Good · 153 d · 55.8%
- Moderate · 117 d · 42.7%
- USG · 4 d · 1.5%
How did Fulton County's air break down in 2025?
Across 274 monitored days, 153 fell in the Good band (AQI 0–50) and 0 reached Unhealthy or worse. The worst single day peaked at AQI 129 (USG).
EPA AQS →Air quality data from EPA Air Quality System (2025). 274 days monitored. Median AQI: 49 (Good).
Insights: Fulton County, Georgia. EPA monitors recorded a median Air Quality Index of 49 across 274 measured days in 2025, earning a Good classification and a Moderate health grade. Of those days, 153 (56%) fell in the Good band (AQI 0–50), 117 (43%) registered Moderate readings, and 4 (1%) reached Unhealthy for Sensitive Groups. The 90th-percentile AQI settled at 64, while the worst single-day peak hit 129 (USG). Residents averaged about 16.8 clean-air days per 30-day window during the monitoring year.
The full pollutant mix ranks as PM2.5 (152 days), Ozone (109 days), NO2 (12 days), CO (1 days). Across the 2020–2025 trend window, good days shifted by -13 and the median AQI moved -3 points, placing the multi-year trajectory at improving. The worst single reading over the 2020–2025 window was AQI 129, usg but never Unhealthy. Nearby counties show comparable readings: Bibb (49.5% good, AQI 51); Charlton (79.0% good, AQI 24); Chatham (66.7% good, AQI 44); Clarke (66.7% good, AQI 44); Clayton (53.1% good, AQI 49); Cobb (92.5% good, AQI 36).
Air Quality Summary
Good Days
55.8%
153 of 274 monitored days
-19.2pp vs 75% target
Max AQI Recorded
129
USG
Health Grade
Moderate
90th-pct AQI 64
Fulton County, Good days share 55.8%
National avg
Share of monitored days at AQI 0-50 (Good band).
Fulton 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 274 monitored days across EPA AQI categories.
Good
153
56%
Moderate
117
43%
USG
4
1%
Unhealthy
0
0%
Very Unhealthy
0
0%
Hazardous
0
0%
Pollutant Breakdown
Days where each pollutant was the primary driver of AQI readings in Fulton County.
- PM2.5 · 152 days · 55.5%
- Ozone · 109 days · 39.8%
- NO₂ · 12 days · 4.4%
- CO · 1 days · 0.4%
Health Impact Assessment
Moderate
Fulton County's air quality is rated Moderate based on 55.8% good air days. No unhealthy air days were recorded in 2025.
Air quality was acceptable on 55.8% of monitored days in 2025, with a median AQI of 49. Unusually sensitive people can check real-time conditions at AirNow.gov during high-pollution events.
The dominant pollutant is PM2.5, driving AQI on 152 of 274 monitored days.
5-Year Air Quality Trend
Air quality is improving in Fulton County. Best year: 2024 (186 good days).
| Year | Good | Moderate | USG | Unhealthy | Median AQI | Max AQI |
|---|---|---|---|---|---|---|
| 2020 | 166 | 198 | 2 | 0 | 52 | 125 |
| 2021 | 147 | 214 | 4 | 0 | 53 | 150 |
| 2022 | 162 | 200 | 2 | 1 | 52 | 169 |
| 2023 | 155 | 198 | 10 | 2 | 53 | 172 |
| 2024 | 186 | 176 | 4 | 0 | 50 | 129 |
| 2025 | 153 | 117 | 4 | 0 | 49 | 129 |
How does Fulton County compare?
How Fulton County compares
Good-day share worse than US avg
Fulton County 55.8%
Bibb County, Georgia 49.5%
US average 76.5%
Median AQI worse than US avg
Fulton County 49
Bibb County, Georgia 51
US average 38
Unhealthy days / yr about average
Fulton County 0
Bibb County, Georgia 0
US average 0
Other Counties in Georgia
Air quality comparison for nearby counties in Georgia.
Counties with Similar Air Quality
Counties across the US with a similar median AQI to Fulton County.
Allegheny County, Pennsylvania
AQI 49 · 51.6% good
Arkansas County, Arkansas
AQI 49 · 51.6% good
Ashley County, Arkansas
AQI 49 · 53.9% good
Clayton County, Georgia
AQI 49 · 53.1% good
Cleveland County, Oklahoma
AQI 49 · 53.7% good
Dewey County, Oklahoma
AQI 49 · 56.6% good
What Fulton 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 49 means for exposure. Health guidance
- See how Fulton County ranks against every monitored U.S. county on Good-day share. County rankings
- Compare Fulton County with its Georgia neighbours before drawing a conclusion about the region. All of Georgia
Based on 274 EPA-monitored days in 2025; figures reflect only days the monitors reported. Source: EPA Air Quality System annual summaries.
More Air Quality Data
Air Quality Guides
Frequently Asked Questions
What is the air quality in Fulton County, Georgia? ▼
Fulton County has a median Air Quality Index (AQI) of 49, rated "Good." 55.8% of monitored days (153 out of 274) had good air quality in 2025.
What is the main pollutant in Fulton County? ▼
The primary pollutant in Fulton County is Fine Particles (PM2.5), which was the main AQI driver on 152 days (55% of monitored days). Penetrates deep into lungs and bloodstream. Linked to heart disease and premature death.
How many unhealthy air days does Fulton County have? ▼
In 2025, Fulton County recorded 0 unhealthy air days (0 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 129.
Is the air quality in Fulton County getting better or worse? ▼
Air quality in Fulton County is improving based on 5-year trends (2020-2025). Best year: 2024 with 186 good days. Worst year: 2021 with 147 good days.
What does AQI 49 mean for health? ▼
Fulton County's median AQI of 49 falls in the "Good" category. See the <a href="/guides/understanding-aqi" class="underline">AQI category guide</a> for what each range means for health.
How does Fulton County compare to other counties in Georgia? ▼
Fulton County has 55.8% good air days. Nearby counties in Georgia: Bibb (49.5% good), Charlton (79.0% good), Chatham (66.7% good), Clarke (66.7% good), Clayton (53.1% good), Cobb (92.5% good).
What is the 90th percentile AQI in Fulton County? ▼
The 90th percentile AQI for Fulton County is 64, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 129 (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.
Every figure on PlainAir 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.