City report · Gelderland, The Netherlands
Nijmegen Air quality today
Air quality in Nijmegen currently reads AQI 82 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 82
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 25.5
- tree cover
- 30.9%
- trees in this area
- 89.8K
- more trees needed
- 0
Measured across a 2 km radius around Stadscentrum, Nijmegen, Netherlands (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Nijmegen · AQI 82 (Moderate)
Nijmegen's tree count comes to 89,795 trees across 11.63 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Nijmegen today: AQI 82, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Nijmegen-Graafseweg, 400 m away · median of 4 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
25.5
PM10
30.7
NO₂
19.0
O₃
18.8
SO₂
—
CO
—
Data: OpenAQ · EEA, Netherlands, RIVM · Luchtmeetnet
- 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 Nijmegen's daily AQI at 74 on average, from 49 on Nov 5 to an hourly peak of 105 on Nov 7.
Where Nijmegen stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Nijmegen: Healthy tree cover
30.9% tree cover against a 30% healthy-neighborhood target, across 11.63 km² of land.
Trees in this area
89,795
Target trees
89,795
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Nijmegen lost?
Since 2001, the area within 10 km of Nijmegen has lost about 231 hectares of forest (about 320 football pitches): 3.8% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 23 hectares (9.7%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 231 haabout 320 football pitches
- Share of its forest
- 3.8%of what there was in 2000
- Cleared for good
- 23 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 45 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 | 2 ha | 4 ha | 6 ha |
| 2002 | under 1 ha | 3 ha | 4 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | 3 ha | 3 ha |
| 2005 | 2 ha | 1 ha | 3 ha |
| 2006 | under 1 ha | 6 ha | 6 ha |
| 2007 | under 1 ha | 3 ha | 4 ha |
| 2008 | under 1 ha | 7 ha | 8 ha |
| 2009 | 2 ha | 12 ha | 14 ha |
| 2010 | 1 ha | 43 ha | 45 ha |
| 2011 | under 1 ha | 4 ha | 4 ha |
| 2012 | under 1 ha | 8 ha | 9 ha |
| 2013 | under 1 ha | 19 ha | 19 ha |
| 2014 | under 1 ha | 16 ha | 16 ha |
| 2015 | under 1 ha | 11 ha | 11 ha |
| 2016 | under 1 ha | 13 ha | 14 ha |
| 2017 | 3 ha | 7 ha | 10 ha |
| 2018 | 2 ha | 4 ha | 6 ha |
| 2019 | under 1 ha | 12 ha | 12 ha |
| 2020 | 3 ha | 8 ha | 11 ha |
| 2021 | 2 ha | 11 ha | 13 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | 10 ha | 10 ha |
| 2024 | under 1 ha | 1 ha | 2 ha |
| 2025 | under 1 ha | under 1 ha | 1 ha |
What is causing deforestation around Nijmegen?
- Loggingcan grow back83% · 192 ha
- Towns and roadscleared for good8.3% · 19 ha
- Farms, pasture and plantationscleared for good1.5% · 3 ha
Also: 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.
Forest gained and lost, 2000–2020
- Forest in 2000
- 8,740 ha
- Forest in 2020
- 9,110 ha
- Overall change
- +373 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Nijmegen grew from about 8,740 hectares to 9,110 hectares, a net gain of about 373 hectares (+4.3%). New forest grew on about 599 hectares, while 227 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 Nijmegen
Same 2 km radius, same index — so they compare directly.
- Arnhem15.8 km
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- Tree cover
- 31%
- Air quality
- 80
- 's-Hertogenbosch41.0 km
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- Air quality
- 112
- Apeldoorn41.6 km
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- 34%
- Air quality
- 79
- Amersfoort47.1 km
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- Tree cover
- 36%
- Air quality
- 122
- Eindhoven51.6 km
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- Tree cover
- 27%
- Air quality
- 74
- Venlo56.9 km
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- Tree cover
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- Air quality
- 112
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Frequently asked
Questions about Nijmegen
What is the air quality (AQI) in Nijmegen right now?
The latest reading for Nijmegen shows an AQI of 82 (Moderate), measured Nov 11, 19:00 local time by 4 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Nijmegen-Graafseweg, 400 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Nijmegen today?
At AQI 82 (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 Nijmegen been like this week?
Over the last 7 days, the CAMS air-quality model put Nijmegen's daily AQI at 74 on average, from 49 on Nov 5 to an hourly peak of 105 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 Nijmegen lost since 2001?
Since 2001, the area within 10 km of Nijmegen has lost about 231 hectares of forest (about 320 football pitches): 3.8% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 23 hectares (9.7%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Nijmegen grew from about 8,740 hectares to 9,110 hectares, a net gain of about 373 hectares (+4.3%). New forest grew on about 599 hectares, while 227 hectares were lost.
What is the tree count in Nijmegen?
Nijmegen has an estimated 89,795 trees across the 11.63 km² of land measured — 30.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Nijmegen need?
Nijmegen has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Nijmegen's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Stadscentrum, 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 2 km radius around Stadscentrum; the tree count is an estimate derived from that cover.
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