City report · Utrecht, The Netherlands
Amersfoort Air quality today
Air quality in Amersfoort currently reads AQI 122 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 122
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 44.1
- tree cover
- 35.6%
- trees in this area
- 112K
- more trees needed
- 0
Measured across a 2 km radius around Lieve Vrouwekerkhof, Amersfoort, Netherlands (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Amersfoort · AQI 122 (Unhealthy for sensitive groups)
Amersfoort's tree count comes to 111,841 trees across 12.57 km², already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Amersfoort today: AQI 122, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 20:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Amersfoort De Nieuwe Poort, 600 m away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
44.1
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, LJLG, Fopz
- 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 Amersfoort's daily AQI at 70 on average, from 41 on Nov 4 to an hourly peak of 112 on Nov 7.
Where Amersfoort stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Amersfoort: Healthy tree cover
35.6% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
111,841
Target trees
111,841
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Amersfoort lost?
Since 2001, the area within 10 km of Amersfoort has lost about 681 hectares of forest (about 950 football pitches): 7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 123 hectares (18%) 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
- 681 haabout 950 football pitches
- Share of its forest
- 7%of what there was in 2000
- Cleared for good
- 123 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 87 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 | 4 ha | 4 ha |
| 2002 | 2 ha | 12 ha | 13 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | 23 ha | 24 ha |
| 2005 | 4 ha | 22 ha | 25 ha |
| 2006 | 4 ha | 8 ha | 12 ha |
| 2007 | 11 ha | 77 ha | 87 ha |
| 2008 | under 1 ha | 18 ha | 18 ha |
| 2009 | 20 ha | 43 ha | 63 ha |
| 2010 | 17 ha | 65 ha | 82 ha |
| 2011 | 4 ha | 19 ha | 24 ha |
| 2012 | 3 ha | 12 ha | 15 ha |
| 2013 | 3 ha | 10 ha | 13 ha |
| 2014 | 2 ha | 7 ha | 9 ha |
| 2015 | under 1 ha | 8 ha | 9 ha |
| 2016 | 6 ha | 48 ha | 54 ha |
| 2017 | 10 ha | 21 ha | 31 ha |
| 2018 | 6 ha | 8 ha | 14 ha |
| 2019 | 12 ha | 35 ha | 46 ha |
| 2020 | 2 ha | 38 ha | 40 ha |
| 2021 | 9 ha | 55 ha | 64 ha |
| 2022 | 3 ha | 9 ha | 11 ha |
| 2023 | 3 ha | 8 ha | 11 ha |
| 2024 | 3 ha | 3 ha | 7 ha |
| 2025 | under 1 ha | 7 ha | 7 ha |
What is causing deforestation around Amersfoort?
- Loggingcan grow back80% · 548 ha
- Towns and roadscleared for good18% · 120 ha
- Unknown causescause unknown1.4% · 10 ha
Also: farms, pasture and plantations, mining and energy.
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
- 8,160 ha
- Forest in 2020
- 8,690 ha
- Overall change
- +531 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Amersfoort grew from about 8,160 hectares to 8,690 hectares, a net gain of about 531 hectares (+6.5%). New forest grew on about 847 hectares, while 315 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 Amersfoort
Same 2 km radius, same index — so they compare directly.
- Utrecht19.5 km
The Netherlands
- Tree cover
- 27%
- Air quality
- 74
- Almere Stad26.7 km
The Netherlands
- Tree cover
- 34%
- Air quality
- 111
- Apeldoorn40.1 km
The Netherlands
- Tree cover
- 34%
- Air quality
- 79
- Arnhem40.7 km
The Netherlands
- Tree cover
- 31%
- Air quality
- 80
- Amsterdam41.7 km
The Netherlands
- Tree cover
- 21%
- Air quality
- 83
- Nijmegen47.1 km
The Netherlands
- Tree cover
- 31%
- Air quality
- 82
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Frequently asked
Questions about Amersfoort
What is the air quality (AQI) in Amersfoort right now?
The latest reading for Amersfoort shows an AQI of 122 (Unhealthy for sensitive groups), measured Nov 11, 20:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Amersfoort De Nieuwe Poort, 600 m away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Amersfoort today?
At AQI 122 (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 Amersfoort been like this week?
Over the last 7 days, the CAMS air-quality model put Amersfoort's daily AQI at 70 on average, from 41 on Nov 4 to an hourly peak of 112 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 Amersfoort lost since 2001?
Since 2001, the area within 10 km of Amersfoort has lost about 681 hectares of forest (about 950 football pitches): 7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 123 hectares (18%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Amersfoort grew from about 8,160 hectares to 8,690 hectares, a net gain of about 531 hectares (+6.5%). New forest grew on about 847 hectares, while 315 hectares were lost.
What is the tree count in Amersfoort?
Amersfoort has an estimated 111,841 trees across the 12.57 km² measured — 35.6% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Amersfoort need?
Amersfoort has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Amersfoort's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Lieve Vrouwekerkhof, 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 Lieve Vrouwekerkhof; the tree count is an estimate derived from that cover.
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