City report · Czechia
Liberec Air quality today
Air quality in Liberec currently reads AQI 24 (Good): Air quality is satisfactory for everyone.
AQI 24
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 4.3
- tree cover
- 46.5%
- trees in this area
- 146K
- more trees needed
- 0
Measured across a 2 km radius around Liberec, Czechia (12.57 km²), from a satellite image of Sep 19, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Liberec · AQI 24 (Good)
Liberec's tree count comes to 145,500 trees across 12.52 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Liberec today: AQI 24, Good
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ and World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Liberec Rochlice, Liberecky, Czech Republic, 1.6 km away · median of 2 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.3
PM10
6.7
NO₂
—
O₃
46.9
SO₂
4.3
CO
—
Data: OpenAQ · EEA, World Air Quality Index Project, Czech Hydrometeorological Institute (Český hydrometeorologický ústav)
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Liberec's daily AQI at 68 on average, from 57 on Nov 7 to an hourly peak of 127 on Nov 6.
Where Liberec stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Liberec: Healthy tree cover
46.5% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
145,500
Target trees
145,500
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Liberec lost?
Since 2001, the area within 10 km of Liberec has lost about 2,000 hectares of forest (about 2,800 football pitches): 10% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 101 hectares (5%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 6 km west of the city center.
- Forest lost since 2001
- 2,000 haabout 2,800 football pitches
- Share of its forest
- 10%of what there was in 2000
- Cleared for good
- 101 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 179 hectares a year in 2021–2025, up from 83 hectares a year in 2016–2020. The worst year was 2021, when about 309 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 | 16 ha | 18 ha |
| 2002 | 3 ha | 15 ha | 18 ha |
| 2003 | under 1 ha | 8 ha | 9 ha |
| 2004 | 6 ha | 61 ha | 67 ha |
| 2005 | 9 ha | 102 ha | 111 ha |
| 2006 | 2 ha | 46 ha | 48 ha |
| 2007 | 4 ha | 48 ha | 52 ha |
| 2008 | 5 ha | 57 ha | 62 ha |
| 2009 | 6 ha | 35 ha | 40 ha |
| 2010 | 9 ha | 56 ha | 65 ha |
| 2011 | 4 ha | 55 ha | 59 ha |
| 2012 | 1 ha | 39 ha | 40 ha |
| 2013 | 2 ha | 21 ha | 23 ha |
| 2014 | 2 ha | 50 ha | 52 ha |
| 2015 | 2 ha | 23 ha | 25 ha |
| 2016 | 11 ha | 94 ha | 105 ha |
| 2017 | 6 ha | 80 ha | 86 ha |
| 2018 | under 1 ha | 32 ha | 33 ha |
| 2019 | 4 ha | 56 ha | 59 ha |
| 2020 | 6 ha | 128 ha | 133 ha |
| 2021 | 3 ha | 306 ha | 309 ha |
| 2022 | 2 ha | 156 ha | 158 ha |
| 2023 | 4 ha | 180 ha | 184 ha |
| 2024 | 5 ha | 135 ha | 140 ha |
| 2025 | 4 ha | 102 ha | 106 ha |
What is causing deforestation around Liberec?
- Loggingcan grow back94% · 1,890 ha
- Towns and roadscleared for good5.1% · 101 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
- 21,800 ha
- Forest in 2020
- 21,700 ha
- Overall change
- −37 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Liberec stayed about the same size, at about 21,700 hectares: new forest grew on about 182 hectares, and about 220 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 Liberec
Same 2 km radius, same index — so they compare directly.
- Wałbrzych86.4 km
Poland
- Tree cover
- 62%
- Air quality
- 47
- Legnica91.7 km
Poland
- Tree cover
- 38%
- Air quality
- 64
- Dresden97.6 km
Germany
- Tree cover
- 33%
- Air quality
- 52
- Zielona Góra133.6 km
Poland
- Tree cover
- 45%
- Air quality
- 65
- Wrocław143.3 km
Poland
- Tree cover
- 30%
- Air quality
- 119
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Frequently asked
Questions about Liberec
What is the air quality (AQI) in Liberec right now?
The latest reading for Liberec shows an AQI of 24 (Good), measured Nov 11, 16:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Liberec Rochlice, Liberecky, Czech Republic, 1.6 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Liberec today?
At AQI 24 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Liberec been like this week?
Over the last 7 days, the CAMS air-quality model put Liberec's daily AQI at 68 on average, from 57 on Nov 7 to an hourly peak of 127 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Liberec lost since 2001?
Since 2001, the area within 10 km of Liberec has lost about 2,000 hectares of forest (about 2,800 football pitches): 10% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 101 hectares (5%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is speeding up: about 179 hectares a year in 2021–2025, up from 83 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Liberec stayed about the same size, at about 21,700 hectares: new forest grew on about 182 hectares, and about 220 hectares were lost.
What is the tree count in Liberec?
Liberec has an estimated 145,500 trees across the 12.52 km² of land measured — 46.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Liberec need?
Liberec has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Liberec's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Liberec, 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 Liberec; the tree count is an estimate derived from that cover.
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