City report · New York, United States
Manhattan Air quality today
Air quality in Manhattan currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
AQI 29
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 4.8
- tree cover
- 40.4%
- trees in this area
- 112K
- more trees needed
- 0
Measured across a 1.2 mi (2 km) radius around Manhattan, New York, NY, USA (4.9 sq mi), from a satellite image of Aug 29, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Manhattan · AQI 29 (Good)
Manhattan's tree count comes to 111,944 trees across 4.3 sq mi (11.09 km²) of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Manhattan today: AQI 29, Good
Main pollutant: Ozone · Observed Nov 11, 12:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · CCNY, 2.7 mi (4.3 km) away · median of 6 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.8
PM10
—
NO₂
50.8
O₃
62.8
SO₂
—
CO
343.7
Data: OpenAQ · AirNow
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Manhattan's daily AQI at 47 on average, from 28 on Nov 8 to an hourly peak of 107 on Nov 6.
Where Manhattan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Manhattan: Healthy tree cover
40.4% tree cover against a 30% healthy-neighborhood target, across 4.3 sq mi (11.09 km²) of land.
Trees in this area
111,944
Target trees
111,944
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Manhattan lost?
Since 2001, the area within 10 km of Manhattan has lost about 125 acres (51 hectares) of forest (about 94 football fields): 3.5% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 125 acres (51 ha)about 94 football fields
- Share of its forest
- 3.5%of what there was in 2000
- Cleared for good
- 100 acres (41 ha)deforestation: turned into farms, mines or towns
The worst year was 2023, when about 25 acres (10 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 | 2 acres (1 ha) | 3 acres (1 ha) | 5 acres (2 ha) |
| 2002 | 3 acres (1 ha) | 3 acres (1 ha) | 7 acres (3 ha) |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 5 acres (2 ha) | under 1 ha | 6 acres (2 ha) |
| 2005 | under 1 ha | under 1 ha | 4 acres (2 ha) |
| 2006 | 15 acres (6 ha) | under 1 ha | 16 acres (6 ha) |
| 2007 | 7 acres (3 ha) | under 1 ha | 8 acres (3 ha) |
| 2008 | under 1 ha | 3 acres (1 ha) | 5 acres (2 ha) |
| 2009 | under 1 ha | under 1 ha | 3 acres (1 ha) |
| 2010 | 4 acres (2 ha) | 3 acres (1 ha) | 7 acres (3 ha) |
| 2011 | 8 acres (3 ha) | under 1 ha | 9 acres (4 ha) |
| 2012 | under 1 ha | under 1 ha | 3 acres (1 ha) |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | 3 acres (1 ha) |
| 2019 | under 1 ha | under 1 ha | 3 acres (1 ha) |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | 9 acres (4 ha) | under 1 ha | 9 acres (4 ha) |
| 2023 | 25 acres (10 ha) | under 1 ha | 25 acres (10 ha) |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Manhattan?
- Towns and roadscleared for good80% · 100 acres (41 ha)
- Storms, floods and other natural causescan grow back2.8% · 3 acres (1 ha)
- Unknown causescause unknown17% · 22 acres (9 ha)
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
- 8,640 acres (3,500 ha)
- Forest in 2020
- 9,010 acres (3,650 ha)
- Overall change
- +371 acres (150 ha)more forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Manhattan grew from about 8,640 acres (3,500 hectares) to 9,010 acres (3,650 hectares), a net gain of about 371 acres (150 hectares) (+4.3%). New forest grew on about 499 acres (202 hectares), while 126 acres (51 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 Manhattan
Same 2 km radius, same index — so they compare directly.
- Brooklyn14.9 km
United States
- Tree cover
- 23%
- Air quality
- 27
- Queens15.7 km
United States
- Tree cover
- 12%
- Air quality
- 26
- Yonkers17.3 km
United States
- Tree cover
- 46%
- Air quality
- 31
- Newark18.2 km
United States
- Tree cover
- 11%
- Air quality
- 29
- Paterson22.8 km
United States
- Tree cover
- 26%
- Air quality
- 7
- Elizabeth24.5 km
United States
- Tree cover
- 15%
- Air quality
- 39
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Frequently asked
Questions about Manhattan
What is the air quality (AQI) in Manhattan right now?
The latest reading for Manhattan shows an AQI of 29 (Good), measured Nov 11, 12:00 local time by 6 ground monitoring stations via OpenAQ (the median of their readings; the nearest is CCNY, 2.7 mi (4.3 km) away). The main pollutant is Ozone. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Manhattan today?
At AQI 29 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Manhattan been like this week?
Over the last 7 days, the CAMS air-quality model put Manhattan's daily AQI at 47 on average, from 28 on Nov 8 to an hourly peak of 107 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Manhattan lost since 2001?
Since 2001, the area within 10 km of Manhattan has lost about 125 acres (51 hectares) of forest (about 94 football fields): 3.5% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Manhattan grew from about 8,640 acres (3,500 hectares) to 9,010 acres (3,650 hectares), a net gain of about 371 acres (150 hectares) (+4.3%). New forest grew on about 499 acres (202 hectares), while 126 acres (51 hectares) were lost.
What is the tree count in Manhattan?
Manhattan has an estimated 111,944 trees across the 4.3 sq mi (11.09 km²) of land measured — 40.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Manhattan need?
Manhattan has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Manhattan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Manhattan, 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 Manhattan; the tree count is an estimate derived from that cover.
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