City report · Czechia
Pilsen Air quality today
Air quality in Pilsen currently reads AQI 53 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 53
Moderate
- PM2.5, fine particles (µg/m³)
- 10.3
- tree cover
- 28.2%
- trees in this area
- 88.5K
- more trees needed
- 5.6K
Measured across a 2 km radius around Pilsen 3, Czechia (12.57 km²), from a satellite image of Sep 6, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Pilsen · AQI 53 (Moderate)
Pilsen's tree count comes to 88,504 trees across 12.56 km² of land, 2 points below the 30% tree-cover level considered healthy for this area, so roughly 5,649 more trees would close the gap.
Air quality detail
Air quality in Pilsen today: AQI 53, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 14:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Plzen-Doubravka, Plzensky, Czech Republic, 4 km away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.3
PM10
9.7
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, Czech Hydrometeorological Institute (Český hydrometeorologický ústav)
- 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 Pilsen's daily AQI at 82 on average, from 58 on Nov 4 to an hourly peak of 152 on Nov 8.
Where Pilsen stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Pilsen: Below target
28.2% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
88,504
Target trees
94,153
More trees needed
5,649
CO₂ if planted / yr
124.3 t
Deforestation · 2001–2025
How much forest has Pilsen lost?
Since 2001, the area within 10 km of Pilsen has lost about 1,090 hectares of forest (about 1,500 football pitches): 12% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 139 hectares (13%) 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 southwest of the city center.
- Forest lost since 2001
- 1,090 haabout 1,500 football pitches
- Share of its forest
- 12%of what there was in 2000
- Cleared for good
- 139 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 66 hectares a year in 2021–2025, against 64 hectares a year in 2016–2020. The worst year was 2021, when about 121 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 | 9 ha | 9 ha |
| 2002 | 3 ha | 36 ha | 39 ha |
| 2003 | 3 ha | 3 ha | 6 ha |
| 2004 | 6 ha | 48 ha | 54 ha |
| 2005 | 2 ha | 22 ha | 24 ha |
| 2006 | 7 ha | 20 ha | 27 ha |
| 2007 | 4 ha | 40 ha | 44 ha |
| 2008 | 2 ha | 47 ha | 49 ha |
| 2009 | 14 ha | 30 ha | 44 ha |
| 2010 | under 1 ha | 9 ha | 10 ha |
| 2011 | 5 ha | 30 ha | 35 ha |
| 2012 | 4 ha | 25 ha | 29 ha |
| 2013 | 7 ha | 10 ha | 17 ha |
| 2014 | 2 ha | 33 ha | 35 ha |
| 2015 | 3 ha | 15 ha | 17 ha |
| 2016 | 4 ha | 35 ha | 38 ha |
| 2017 | 5 ha | 35 ha | 40 ha |
| 2018 | 13 ha | 38 ha | 51 ha |
| 2019 | 6 ha | 81 ha | 88 ha |
| 2020 | 13 ha | 91 ha | 103 ha |
| 2021 | 6 ha | 115 ha | 121 ha |
| 2022 | 12 ha | 56 ha | 68 ha |
| 2023 | 8 ha | 45 ha | 52 ha |
| 2024 | 6 ha | 46 ha | 52 ha |
| 2025 | 5 ha | 33 ha | 38 ha |
What is causing deforestation around Pilsen?
- Loggingcan grow back86% · 942 ha
- Towns and roadscleared for good11% · 123 ha
- Mining and energycleared for good1.4% · 15 ha
Also: farms, pasture and plantations, 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
- 11,700 ha
- Forest in 2020
- 11,900 ha
- Overall change
- +167 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Pilsen stayed about the same size, at about 11,900 hectares: new forest grew on about 356 hectares, and about 188 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 Pilsen
Same 2 km radius, same index — so they compare directly.
- Regensburg123.1 km
Germany
- Tree cover
- 29%
- Air quality
- 111
- Chemnitz125.1 km
Germany
- Tree cover
- 41%
- Air quality
- 15
- Dresden147.2 km
Germany
- Tree cover
- 33%
- Air quality
- 52
- Gera156.0 km
Germany
- Tree cover
- 48%
- Air quality
- 46
- Liberec164.6 km
Czechia
- Tree cover
- 47%
- Air quality
- 34
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Frequently asked
Questions about Pilsen
What is the air quality (AQI) in Pilsen right now?
The latest reading for Pilsen shows an AQI of 53 (Moderate), measured Nov 11, 14:00 local time by the Plzen-Doubravka, Plzensky, Czech Republic ground monitoring station, 4 km away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Pilsen today?
At AQI 53 (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 Pilsen been like this week?
Over the last 7 days, the CAMS air-quality model put Pilsen's daily AQI at 82 on average, from 58 on Nov 4 to an hourly peak of 152 on Nov 8. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Pilsen lost since 2001?
Since 2001, the area within 10 km of Pilsen has lost about 1,090 hectares of forest (about 1,500 football pitches): 12% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 139 hectares (13%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 66 hectares a year in 2021–2025, against 64 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Pilsen stayed about the same size, at about 11,900 hectares: new forest grew on about 356 hectares, and about 188 hectares were lost.
What is the tree count in Pilsen?
Pilsen has an estimated 88,504 trees across the 12.56 km² of land measured — 28.2% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Pilsen need?
Pilsen needs roughly 5,649 more trees to close a 2-point shortfall against its 30% tree-cover target — about 124.3 t of extra CO₂ absorbed per year once grown.
How are Pilsen's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Pilsen 3, 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 Pilsen 3; the tree count is an estimate derived from that cover.
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