City report · The Netherlands
Leeuwarden Air quality today
Air quality in Leeuwarden currently reads AQI 108 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 108
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 32.9
- tree cover
- 26.5%
- trees in this area
- 83.1K
- more trees needed
- 26.6K
Measured across a 2 km radius around Leeuwarden, Netherlands (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Leeuwarden · AQI 108 (Unhealthy for sensitive groups)
Leeuwarden's tree count comes to 83,086 trees across 12.54 km² of land, 8 points below the 35% tree-cover level considered healthy for this area, so roughly 26,650 more trees would close the gap.
Air quality detail
Air quality in Leeuwarden today: AQI 108, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 85 km, e.g. Groningen and Zwolle
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
32.9
PM10
22.4
NO₂
7.8
O₃
52.0
SO₂
0.9
CO
219.0
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Leeuwarden's daily AQI at 69 on average, from 40 on Nov 5 to an hourly peak of 89 on Nov 8.
Where Leeuwarden stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Leeuwarden: Below target
26.5% tree cover against a 35% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
83,086
Target trees
109,736
More trees needed
26,650
CO₂ if planted / yr
586.3 t
Deforestation · 2001–2025
How much forest has Leeuwarden lost?
Since 2001, the area within 10 km of Leeuwarden has lost about 11 hectares of forest (about 15 football pitches): under 1% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (6.5%). Almost none of it was deforestation, meaning forest cleared for good.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 11 haabout 15 football pitches
- Share of its forest
- under 1%of what there was in 2000
- Cleared for good
- under 1 hadeforestation: turned into farms, mines or towns
The worst year was 2005, when about 3 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | 1 ha | 2 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | 3 ha | 3 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 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 | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 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 Leeuwarden?
- Farms, pasture and plantationscleared for good6.5% · under 1 ha
- Unknown causescause unknown91% · 10 ha
Also: logging, towns and roads.
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
- 679 ha
- Forest in 2020
- 836 ha
- Overall change
- +157 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Leeuwarden grew from about 679 hectares to 836 hectares, a net gain of about 157 hectares (+23%). New forest grew on about 208 hectares, while 52 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 Leeuwarden
Same 2 km radius, same index — so they compare directly.
- Groningen50.4 km
The Netherlands
- Tree cover
- 31%
- Air quality
- 74
- Zwolle79.1 km
The Netherlands
- Tree cover
- 31%
- Air quality
- 115
- Almere Stad100.9 km
The Netherlands
- Tree cover
- 34%
- Air quality
- 112
- Zaanstad106.9 km
The Netherlands
- Tree cover
- 23%
- Air quality
- 80
- Apeldoorn110.9 km
The Netherlands
- Tree cover
- 34%
- Air quality
- 76
- Amsterdam111.0 km
The Netherlands
- Tree cover
- 21%
- Air quality
- 74
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Frequently asked
Questions about Leeuwarden
What is the air quality (AQI) in Leeuwarden right now?
The latest reading for Leeuwarden shows an AQI of 108 (Unhealthy for sensitive groups), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Leeuwarden today?
At AQI 108 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Leeuwarden been like this week?
Over the last 7 days, the CAMS air-quality model put Leeuwarden's daily AQI at 69 on average, from 40 on Nov 5 to an hourly peak of 89 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Leeuwarden lost since 2001?
Since 2001, the area within 10 km of Leeuwarden has lost about 11 hectares of forest (about 15 football pitches): under 1% of the forest it had in 2000. The biggest cause was farms, pasture and plantations (6.5%). Almost none of it was deforestation, meaning forest cleared for good. Comparing satellite maps from 2000 and 2020, the forest around Leeuwarden grew from about 679 hectares to 836 hectares, a net gain of about 157 hectares (+23%). New forest grew on about 208 hectares, while 52 hectares were lost.
What is the tree count in Leeuwarden?
Leeuwarden has an estimated 83,086 trees across the 12.54 km² of land measured — 26.5% tree cover, 8 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Leeuwarden need?
Leeuwarden needs roughly 26,650 more trees to close a 8-point shortfall against its 35% tree-cover target — about 586.3 t of extra CO₂ absorbed per year once grown.
How are Leeuwarden's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Leeuwarden; the tree count is an estimate derived from that cover.
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