City report · Saxony-Anhalt, Germany
Halle (Saale) Air quality today
Air quality in Halle (Saale) currently reads AQI 62 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 62
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 15.1
- tree cover
- 24.5%
- trees in this area
- 76.8K
- more trees needed
- 17.2K
Measured across a 2 km radius around Nördliche Innenstadt, Mitte, Halle (Saale), Germany (12.57 km²), from a satellite image of Aug 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Halle (Saale) · AQI 62 (Moderate)
Halle (Saale)'s tree count comes to 76,815 trees across 12.54 km² of land, 5 points below the 30% tree-cover level considered healthy for this area, so roughly 17,244 more trees would close the gap.
Air quality detail
Air quality in Halle (Saale) today: AQI 62, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Halle/Riebeckplatz, 700 m away · median of 3 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
15.1
PM10
22.0
NO₂
26.7
O₃
6.8
SO₂
—
CO
464.5
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 Halle (Saale)'s daily AQI at 64 on average, from 43 on Nov 4 to an hourly peak of 83 on Nov 9.
Where Halle (Saale) stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Halle (Saale): Below target
24.5% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
76,815
Target trees
94,059
More trees needed
17,244
CO₂ if planted / yr
379.4 t
Deforestation · 2001–2025
How much forest has Halle (Saale) lost?
Since 2001, the area within 10 km of Halle (Saale) has lost about 55 hectares of forest (about 77 football pitches): 1.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 8 hectares (14%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 6 km west of the city center.
- Forest lost since 2001
- 55 haabout 77 football pitches
- Share of its forest
- 1.7%of what there was in 2000
- Cleared for good
- 8 hadeforestation: turned into farms, mines or towns
The worst year was 2021, when about 20 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 | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | 1 ha |
| 2005 | under 1 ha | 3 ha | 4 ha |
| 2006 | under 1 ha | under 1 ha | 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 | 1 ha |
| 2011 | 1 ha | under 1 ha | 2 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 | 1 ha | 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | 1 ha |
| 2019 | under 1 ha | 3 ha | 3 ha |
| 2020 | under 1 ha | 10 ha | 10 ha |
| 2021 | 2 ha | 18 ha | 20 ha |
| 2022 | under 1 ha | 1 ha | 2 ha |
| 2023 | under 1 ha | 2 ha | 2 ha |
| 2024 | under 1 ha | under 1 ha | 1 ha |
| 2025 | under 1 ha | 3 ha | 3 ha |
What is causing deforestation around Halle (Saale)?
- Loggingcan grow back73% · 40 ha
- Towns and roadscleared for good14% · 8 ha
- Farms, pasture and plantationscleared for good1.1% · under 1 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
- 6,160 ha
- Forest in 2020
- 6,940 ha
- Overall change
- +780 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Halle (Saale) grew from about 6,160 hectares to 6,940 hectares, a net gain of about 780 hectares (+13%). New forest grew on about 826 hectares, while 46 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
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Frequently asked
Questions about Halle (Saale)
What is the air quality (AQI) in Halle (Saale) right now?
The latest reading for Halle (Saale) shows an AQI of 62 (Moderate), measured Nov 11, 17:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Halle/Riebeckplatz, 700 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Halle (Saale) today?
At AQI 62 (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 Halle (Saale) been like this week?
Over the last 7 days, the CAMS air-quality model put Halle (Saale)'s daily AQI at 64 on average, from 43 on Nov 4 to an hourly peak of 83 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Halle (Saale) lost since 2001?
Since 2001, the area within 10 km of Halle (Saale) has lost about 55 hectares of forest (about 77 football pitches): 1.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 8 hectares (14%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Halle (Saale) grew from about 6,160 hectares to 6,940 hectares, a net gain of about 780 hectares (+13%). New forest grew on about 826 hectares, while 46 hectares were lost.
What is the tree count in Halle (Saale)?
Halle (Saale) has an estimated 76,815 trees across the 12.54 km² of land measured — 24.5% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Halle (Saale) need?
Halle (Saale) needs roughly 17,244 more trees to close a 5-point shortfall against its 30% tree-cover target — about 379.4 t of extra CO₂ absorbed per year once grown.
How are Halle (Saale)'s air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Nördliche Innenstadt, 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 Nördliche Innenstadt; the tree count is an estimate derived from that cover.
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