City report · Germany
Saarbrücken Air quality today
Air quality in Saarbrücken currently reads AQI 74 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 74
Moderate
- PM2.5, fine particles (µg/m³)
- 21.6
- tree cover
- 49.6%
- trees in this area
- 155K
- more trees needed
- 0
Measured across a 2 km radius around Sankt Johann, Mitte, Saarbrücken, Germany (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Saarbrücken · AQI 74 (Moderate)
Saarbrücken's tree count comes to 154,732 trees across 12.48 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Saarbrücken today: AQI 74, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Saarbrücken-Verkehr, 500 m away · median of 4 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
21.6
PM10
27.9
NO₂
30.3
O₃
9.1
SO₂
3.2
CO
870.0
Data: OpenAQ · EEA
- 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 Saarbrücken's daily AQI at 70 on average, from 48 on Nov 11 to an hourly peak of 92 on Nov 7.
Where Saarbrücken stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Saarbrücken: Healthy tree cover
49.6% tree cover against a 30% healthy-neighborhood target, across 12.48 km² of land.
Trees in this area
154,732
Target trees
154,732
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Saarbrücken lost?
Since 2001, the area within 10 km of Saarbrücken has lost about 532 hectares of forest (about 750 football pitches): 3.2% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 170 hectares (32%) 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 north of the city center.
- Forest lost since 2001
- 532 haabout 750 football pitches
- Share of its forest
- 3.2%of what there was in 2000
- Cleared for good
- 170 hadeforestation: turned into farms, mines or towns
The worst year was 2024, when about 62 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 | 14 ha | 13 ha | 27 ha |
| 2002 | 4 ha | 2 ha | 6 ha |
| 2003 | 4 ha | 3 ha | 6 ha |
| 2004 | 6 ha | 7 ha | 13 ha |
| 2005 | 10 ha | 26 ha | 35 ha |
| 2006 | 10 ha | 23 ha | 33 ha |
| 2007 | 5 ha | 17 ha | 23 ha |
| 2008 | 13 ha | 20 ha | 34 ha |
| 2009 | 6 ha | 2 ha | 8 ha |
| 2010 | 9 ha | 24 ha | 33 ha |
| 2011 | 3 ha | 6 ha | 9 ha |
| 2012 | 3 ha | 4 ha | 8 ha |
| 2013 | 3 ha | 1 ha | 4 ha |
| 2014 | 4 ha | 2 ha | 6 ha |
| 2015 | under 1 ha | 1 ha | 2 ha |
| 2016 | 6 ha | 7 ha | 14 ha |
| 2017 | 4 ha | 12 ha | 16 ha |
| 2018 | 10 ha | 4 ha | 14 ha |
| 2019 | 4 ha | 14 ha | 19 ha |
| 2020 | 7 ha | 24 ha | 31 ha |
| 2021 | 19 ha | 34 ha | 53 ha |
| 2022 | under 1 ha | 7 ha | 7 ha |
| 2023 | 10 ha | 31 ha | 41 ha |
| 2024 | 11 ha | 51 ha | 62 ha |
| 2025 | 5 ha | 27 ha | 32 ha |
What is causing deforestation around Saarbrücken?
- Loggingcan grow back64% · 338 ha
- Towns and roadscleared for good31% · 164 ha
- Farms, pasture and plantationscleared for good1.2% · 6 ha
Also: 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
- 21,100 ha
- Forest in 2020
- 21,200 ha
- Overall change
- +101 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Saarbrücken stayed about the same size, at about 21,200 hectares: new forest grew on about 273 hectares, and about 172 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 Saarbrücken
Same 2 km radius, same index — so they compare directly.
- Metz62.1 km
France
- Tree cover
- 30%
- Air quality
- 91
- Trier64.0 km
Germany
- Tree cover
- 47%
- Air quality
- 53
- Luxembourg76.1 km
Luxembourg
- Tree cover
- 36%
- Air quality
- 50
- Nancy85.7 km
France
- Tree cover
- 21%
- Air quality
- 6
- Strasbourg90.0 km
France
- Tree cover
- 26%
- Air quality
- 148
- Karlsruhe104.5 km
Germany
- Tree cover
- 42%
- Air quality
- 79
Build your own
Compare Saarbrücken with anywhere
This place
Saarbrücken
Use this data
Put Saarbrücken's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Saarbrücken
What is the air quality (AQI) in Saarbrücken right now?
The latest reading for Saarbrücken shows an AQI of 74 (Moderate), measured Nov 11, 16:00 local time by 4 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Saarbrücken-Verkehr, 500 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Saarbrücken today?
At AQI 74 (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 Saarbrücken been like this week?
Over the last 7 days, the CAMS air-quality model put Saarbrücken's daily AQI at 70 on average, from 48 on Nov 11 to an hourly peak of 92 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 Saarbrücken lost since 2001?
Since 2001, the area within 10 km of Saarbrücken has lost about 532 hectares of forest (about 750 football pitches): 3.2% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 170 hectares (32%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Saarbrücken stayed about the same size, at about 21,200 hectares: new forest grew on about 273 hectares, and about 172 hectares were lost.
What is the tree count in Saarbrücken?
Saarbrücken has an estimated 154,732 trees across the 12.48 km² of land measured — 49.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Saarbrücken need?
Saarbrücken has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Saarbrücken's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Sankt Johann, 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 Sankt Johann; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address