Metro area air quality · 2025

Toledo, OH

Median AQI 52 (Moderate). 46.7% of monitored days rated Good across this metro's EPA monitoring network.

52
Median AQI
46.7%
Good-air days
1
Unhealthy days
10%
Cleaner than US metros

Aggregated from EPA Air Quality System (2025), 304 monitored days. EPA AQS →

The verdict

The Toledo, OH metro runs moderate on the EPA scale, among the more polluted US metros, a median AQI of 52 with 46.7% of 304 monitored days in the Good band.

52
median AQI · Moderate
46.7%
days rated Good
10%
cleaner than US metros
154
worst single reading

1 day reached Unhealthy or worse across the metro's monitors in 2025.

Insights: Toledo, OH metro. Aggregated EPA AQS monitors across this Core-Based Statistical Area logged a median Air Quality Index of 52 over 304 measured days in 2025, which corresponds to a Moderate band and a Poor metro-wide health grade. The monitored-day split lands at 142 Good days (47%), 153 Moderate (50%), and 8 Unhealthy-for-Sensitive-Groups (3%). The 90th-percentile AQI finished at 77 while the highest single-day reading hit 154 (Unhealthy). Metro residents averaged roughly 14.0 clean-air days per 30-day window across the reporting year.

Across the 2020–2025 trend window, good days shifted by -108 and the median AQI moved +10 points, which classifies the multi-year trajectory as worsening. The metro recorded 1 unhealthy-or-worse days combined, on those days the EPA recommends that sensitive groups limit prolonged outdoor exertion, and many schools and athletic programs adjust outdoor activity accordingly. Metros with comparable AQI profiles include Atlanta-Sandy Springs-Roswell, GA (45.3% good, AQI 52); El Dorado, AR (44.0% good, AQI 52); Greeley, CO (42.7% good, AQI 52).

Air Quality Summary

Median AQI

52

Moderate

Good Days

46.7%

142 of 304 days

Max AQI

154

Unhealthy

Health Grade

Poor

90th pct: 77

AQI Day Breakdown (2025)

Distribution of 304 monitored days across EPA AQI categories.

Good

142

47%

Moderate

153

50%

USG

8

3%

Unhealthy

1

0%

Very Unhealthy

0

0%

Hazardous

0

0%

Health Impact Assessment

Poor

The Toledo, OH metro area's air quality is rated Poor based on 46.7% good air days. There were 1 unhealthy days in 2025 when outdoor activity should be limited.

Air quality is acceptable most days, but 8 days reached "Unhealthy for Sensitive Groups" and peak AQI reached 154. Sensitive groups should monitor real-time conditions at AirNow.gov.

How does the Toledo, OH metro compare?

How Toledo, OH compares

Good-day share worse than US avg
Toledo, OH 46.7%
Atlanta-Sandy Springs-Roswell, GA 45.3%
US average 71.3%
Median AQI worse than US avg
Toledo, OH 52
Atlanta-Sandy Springs-Roswell, GA 52
US average 41
Unhealthy days / yr about average
Toledo, OH 1
Atlanta-Sandy Springs-Roswell, GA 0
US average 1

5-Year Air Quality Trend

Air quality is worsening in the Toledo, OH metro. Best year: 2020 (250 good days).

Year Good Moderate Unhealthy Median AQI
2020 250 96 0 42
2021 222 138 0 46
2022 239 118 0 44
2023 217 133 2 45
2024 155 207 0 53
2025 142 153 1 52

Metros with Similar Air Quality

Metro areas across the US with a similar median AQI to Toledo, OH.

Atlanta-Sandy Springs-Roswell, GA

AQI 52 · 45.3% good

52

El Dorado, AR

AQI 52 · 44.0% good

52

Greeley, CO

AQI 52 · 42.7% good

52

Jackson, MS

AQI 52 · 43.4% good

52

New Orleans-Metairie, LA

AQI 52 · 45.6% good

52

New York-Newark-Jersey City, NY-NJ-PA

AQI 52 · 47.0% good

52

More Air Quality Data

Explore EPA air quality rankings and guides across U.S. metros and counties.

Cleanest Metro Areas

U.S. metros ranked by their share of Good air-quality days.

Worst Air Quality

Counties and metros with the most unhealthy air days.

All Metro Areas

Annual AQI by CBSA for every monitored U.S. metro area.

Best and Worst City Air

What drives urban air quality and how metro areas compare.

Air Quality Guides

Frequently Asked Questions

What is the air quality in the Toledo, OH metro area? ▼
The Toledo, OH metro area has a median Air Quality Index (AQI) of 52, rated "Moderate." 46.7% of monitored days (142 out of 304) had good air quality in 2025.
How many unhealthy air days does Toledo, OH have? ▼
In 2025, the Toledo, OH metro area recorded 1 unhealthy air days (1 Unhealthy, 0 Very Unhealthy, 0 Hazardous). The maximum AQI reached 154.
Is air quality in Toledo, OH getting better or worse? ▼
Air quality in the Toledo, OH metro is worsening based on 5-year trends (2020-2025). Best year: 2020 with 250 good days. Worst year: 2025 with 142 good days.
What does AQI 52 mean for health? ▼
An AQI of 52 is "Moderate", air quality is acceptable, but some pollutants may pose a moderate health concern for a small number of sensitive individuals.
What is the 90th percentile AQI for Toledo, OH? ▼
The 90th percentile AQI for the Toledo, OH metro area is 77, meaning 90% of monitored days had an AQI at or below this level. The maximum AQI recorded was 154 (Unhealthy).
How does Toledo, OH compare to other metro areas? ▼
The Toledo, OH metro has 46.7% good air days. Similar metros: Atlanta-Sandy Springs-Roswell, GA (45.3% good), El Dorado, AR (44.0% good), Greeley, CO (42.7% good).

Data Sources

Primary Source: U.S. Environmental Protection Agency (EPA), Air Quality System (AQS), Annual AQI by CBSA dataset, 2020–2025. See our methodology for how AQI, median, and coverage figures are computed.

Read our methodology , how this data is sourced, computed, and verified.

Source: U.S. EPA Air Quality System (AQS) Annual AQI by CBSA summary files (metro-level) · 2020–2025

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.