City report · Ohio, United States
Cincinnati Air quality today
Air quality in Cincinnati currently reads AQI 75 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 75
Moderate
- PM2.5, fine particles (µg/m³)
- 22.1
- tree cover
- 30.0%
- trees in this area
- 94.2K
- more trees needed
- 0
Measured across a 1.2 mi (2 km) radius around Clifton Heights, Cincinnati, OH 45219, USA (4.9 sq mi), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Cincinnati · AQI 75 (Moderate)
Cincinnati's tree count comes to 94,248 trees across 4.9 sq mi (12.57 km²), already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Cincinnati today: AQI 75, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Lower Price Hill, 2.5 mi (4 km) away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
22.1
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
1260.2
Data: OpenAQ · AirNow
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Cincinnati's daily AQI at 39 on average, from 23 on Nov 5 to an hourly peak of 74 on Nov 7.
Where Cincinnati stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Cincinnati: Healthy tree cover
30.0% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).
Trees in this area
94,248
Target trees
94,248
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Cincinnati lost?
Since 2001, the area within 10 km of Cincinnati has lost about 717 acres (290 hectares) of forest (about 540 football fields): 3% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 717 acres (290 ha)about 540 football fields
- Share of its forest
- 3%of what there was in 2000
- Cleared for good
- 676 acres (274 ha)deforestation: turned into farms, mines or towns
The worst year was 2007, when about 86 acres (35 hectares) of forest were lost.
Acres of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 57 acres (23 ha) | under 1 ha | 57 acres (23 ha) |
| 2002 | 31 acres (13 ha) | under 1 ha | 32 acres (13 ha) |
| 2003 | 26 acres (11 ha) | under 1 ha | 28 acres (11 ha) |
| 2004 | 45 acres (18 ha) | under 1 ha | 47 acres (19 ha) |
| 2005 | 41 acres (17 ha) | under 1 ha | 42 acres (17 ha) |
| 2006 | 32 acres (13 ha) | under 1 ha | 33 acres (13 ha) |
| 2007 | 84 acres (34 ha) | under 1 ha | 86 acres (35 ha) |
| 2008 | 38 acres (15 ha) | under 1 ha | 39 acres (16 ha) |
| 2009 | 5 acres (2 ha) | under 1 ha | 5 acres (2 ha) |
| 2010 | 18 acres (7 ha) | under 1 ha | 19 acres (8 ha) |
| 2011 | 25 acres (10 ha) | under 1 ha | 25 acres (10 ha) |
| 2012 | 11 acres (5 ha) | under 1 ha | 12 acres (5 ha) |
| 2013 | 29 acres (12 ha) | 9 acres (4 ha) | 39 acres (16 ha) |
| 2014 | 5 acres (2 ha) | under 1 ha | 7 acres (3 ha) |
| 2015 | 7 acres (3 ha) | under 1 ha | 8 acres (3 ha) |
| 2016 | 18 acres (7 ha) | under 1 ha | 19 acres (8 ha) |
| 2017 | 17 acres (7 ha) | under 1 ha | 17 acres (7 ha) |
| 2018 | 23 acres (9 ha) | under 1 ha | 23 acres (9 ha) |
| 2019 | 6 acres (2 ha) | under 1 ha | 7 acres (3 ha) |
| 2020 | 6 acres (2 ha) | under 1 ha | 6 acres (3 ha) |
| 2021 | 34 acres (14 ha) | under 1 ha | 35 acres (14 ha) |
| 2022 | 21 acres (8 ha) | under 1 ha | 21 acres (9 ha) |
| 2023 | 15 acres (6 ha) | under 1 ha | 16 acres (6 ha) |
| 2024 | 51 acres (21 ha) | under 1 ha | 51 acres (21 ha) |
| 2025 | 32 acres (13 ha) | 10 acres (4 ha) | 43 acres (17 ha) |
What is causing deforestation around Cincinnati?
- Towns and roadscleared for good94% · 675 acres (273 ha)
- Unknown causescause unknown5.8% · 41 acres (17 ha)
Also: farms, pasture and plantations.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 41,400 acres (16,800 ha)
- Forest in 2020
- 40,600 acres (16,400 ha)
- Overall change
- −811 acres (328 ha)less forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Cincinnati stayed about the same size, at about 40,600 acres (16,400 hectares): new forest grew on about 479 acres (194 hectares), and about 1,290 acres (522 hectares) were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
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. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Cincinnati
Same 2 km radius, same index — so they compare directly.
- Dayton75.5 km
United States
- Tree cover
- 14%
- Air quality
- 69
- Lexington126.6 km
United States
- Tree cover
- 53%
- Air quality
- 32
- Louisville145.2 km
United States
- Tree cover
- 11%
- Air quality
- 54
- Indianapolis158.1 km
United States
- Tree cover
- 12%
- Air quality
- 114
- Columbus159.7 km
United States
- Tree cover
- 16%
- Air quality
- 85
- Meads175.5 km
United States
- Tree cover
- 71%
- Air quality
- 49
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Frequently asked
Questions about Cincinnati
What is the air quality (AQI) in Cincinnati right now?
The latest reading for Cincinnati shows an AQI of 75 (Moderate), measured Nov 11, 09:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Lower Price Hill, 2.5 mi (4 km) away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Cincinnati today?
At AQI 75 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Cincinnati been like this week?
Over the last 7 days, the CAMS air-quality model put Cincinnati's daily AQI at 39 on average, from 23 on Nov 5 to an hourly peak of 74 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Cincinnati lost since 2001?
Since 2001, the area within 10 km of Cincinnati has lost about 717 acres (290 hectares) of forest (about 540 football fields): 3% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Cincinnati stayed about the same size, at about 40,600 acres (16,400 hectares): new forest grew on about 479 acres (194 hectares), and about 1,290 acres (522 hectares) were lost.
What is the tree count in Cincinnati?
Cincinnati has an estimated 94,248 trees across the 4.9 sq mi (12.57 km²) measured — 30.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Cincinnati need?
Cincinnati has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Cincinnati's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Clifton Heights, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 1.2 mi (2 km) radius around Clifton Heights; the tree count is an estimate derived from that cover.
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