United States · Ohio · 6 places
Air quality in Ohio today The AQI right now, city by city
Right now, Toledo has the cleanest air of the 6 Ohio cities we track (AQI 61, Moderate), and Columbus the worst (AQI 85, Moderate). Akron has the most tree cover, at 37.4% — #49 of 278 large US cities.
Every place is measured the same way, over the same 1.2 mi (2 km) around its center: the air quality right now, from ground stations where there are any, and its tree cover.
Average right now
AQI 74
Moderate
- places tracked
- 6
- average tree cover
- 23.9%
- US cities: 25.1%
- worst air now: Columbus
- 85
- cleanest air now: Toledo
- 61
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Ohio · average AQI 74
Air quality today across Ohio, city by city
| Columbus | 85Moderate | 15.9% | 43.2K | #184 of 278 |
|---|---|---|---|---|
| Cleveland | 84Moderate | 11.0% | 45.7K | #224 of 278 |
| Cincinnati | 75Moderate | 30.0% | — | #97 of 278 |
| Toledo | 61Moderate | 34.8% | — | #66 of 278 |
| Akron | 70Moderate | 37.4% | — | #49 of 278 |
| Dayton | 69Moderate | 14.2% | 48.1K | #199 of 278 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 1.2 mi (2 km) of each city center from Sentinel-2 imagery. The US greenness rank covers cities of 100,000+ people; see the full ranking.
Deforestation · 2001–2025
How much forest has Ohio lost?
Since 2001, Ohio has lost about 400,000 acres (162,000 hectares) of forest (about 300,000 football fields): 4.5% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 128,000 acres (51,600 hectares) (32%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 400,000 acres (162,000 ha)about 300,000 football fields
- Share of its forest
- 4.5%of what there was in 2000
- Cleared for good
- 128,000 acres (51,600 ha)deforestation: turned into farms, mines or towns
Acres of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 5,250 acres (2,130 ha) | 8,760 acres (3,540 ha) | 14,000 acres (5,670 ha) |
| 2002 | 5,410 acres (2,190 ha) | 7,950 acres (3,220 ha) | 13,400 acres (5,410 ha) |
| 2003 | 4,130 acres (1,670 ha) | 8,030 acres (3,250 ha) | 12,200 acres (4,920 ha) |
| 2004 | 6,050 acres (2,450 ha) | 8,110 acres (3,280 ha) | 14,200 acres (5,730 ha) |
| 2005 | 7,490 acres (3,030 ha) | 10,500 acres (4,270 ha) | 18,000 acres (7,300 ha) |
| 2006 | 7,240 acres (2,930 ha) | 9,470 acres (3,830 ha) | 16,700 acres (6,760 ha) |
| 2007 | 6,580 acres (2,660 ha) | 13,100 acres (5,300 ha) | 19,700 acres (7,970 ha) |
| 2008 | 6,760 acres (2,740 ha) | 14,400 acres (5,820 ha) | 21,200 acres (8,560 ha) |
| 2009 | 5,160 acres (2,090 ha) | 9,520 acres (3,850 ha) | 14,700 acres (5,940 ha) |
| 2010 | 5,800 acres (2,350 ha) | 15,300 acres (6,210 ha) | 21,100 acres (8,560 ha) |
| 2011 | 4,440 acres (1,800 ha) | 10,300 acres (4,180 ha) | 14,800 acres (5,980 ha) |
| 2012 | 6,470 acres (2,620 ha) | 14,300 acres (5,790 ha) | 20,800 acres (8,410 ha) |
| 2013 | 3,130 acres (1,270 ha) | 9,480 acres (3,840 ha) | 12,600 acres (5,110 ha) |
| 2014 | 4,700 acres (1,900 ha) | 10,100 acres (4,090 ha) | 14,800 acres (5,990 ha) |
| 2015 | 5,000 acres (2,020 ha) | 11,600 acres (4,690 ha) | 16,600 acres (6,710 ha) |
| 2016 | 7,030 acres (2,850 ha) | 15,100 acres (6,100 ha) | 22,100 acres (8,950 ha) |
| 2017 | 7,190 acres (2,910 ha) | 18,900 acres (7,640 ha) | 26,100 acres (10,500 ha) |
| 2018 | 4,340 acres (1,760 ha) | 9,980 acres (4,040 ha) | 14,300 acres (5,800 ha) |
| 2019 | 3,300 acres (1,330 ha) | 9,300 acres (3,760 ha) | 12,600 acres (5,100 ha) |
| 2020 | 3,800 acres (1,540 ha) | 11,000 acres (4,460 ha) | 14,800 acres (6,000 ha) |
| 2021 | 3,700 acres (1,500 ha) | 9,670 acres (3,910 ha) | 13,400 acres (5,410 ha) |
| 2022 | 4,070 acres (1,650 ha) | 10,000 acres (4,050 ha) | 14,100 acres (5,700 ha) |
| 2023 | 4,090 acres (1,660 ha) | 9,340 acres (3,780 ha) | 13,400 acres (5,440 ha) |
| 2024 | 3,150 acres (1,270 ha) | 9,090 acres (3,680 ha) | 12,200 acres (4,950 ha) |
| 2025 | 3,300 acres (1,340 ha) | 8,980 acres (3,630 ha) | 12,300 acres (4,970 ha) |
Forest loss is slowing down: about 13,100 acres (5,290 hectares) a year in 2021–2025, down from 18,000 acres (7,280 hectares) a year in 2016–2020. The worst year was 2017, when about 26,100 acres (10,500 hectares) of forest were lost.
What is causing deforestation in Ohio?
- Loggingcan grow back65% · 259,000 acres (105,000 ha)
- Farms, pasture and plantationscleared for good16% · 62,200 acres (25,200 ha)
- Towns and roadscleared for good13% · 53,000 acres (21,400 ha)
Also: mining and energy, storms, floods and other natural causes, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. How it's measured
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