City report · Silesia, Poland
Bytom Air quality today
Air quality in Bytom currently reads AQI 101 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 101
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 35.5
- tree cover
- 43.0%
- trees in this area
- 135K
- more trees needed
- 0
Measured across a 2 km radius around Bytom, Poland (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bytom · AQI 101 (Unhealthy for sensitive groups)
Bytom's tree count comes to 134,548 trees across 12.52 km² of land, already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Bytom today: AQI 101, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Wojkowice, 7.8 km away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
35.5
PM10
—
NO₂
—
O₃
55.1
SO₂
6.8
CO
—
Data: OpenAQ · AirGradient, EEA, farad
- 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 Bytom's daily AQI at 124 on average, from 67 on Nov 3 to an hourly peak of 213 on Nov 8.
Where Bytom stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bytom: Healthy tree cover
43.0% tree cover against a 35% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
134,548
Target trees
134,548
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Bytom lost?
Since 2001, the area within 10 km of Bytom has lost about 850 hectares of forest (about 1,200 football pitches): 9.1% of the forest it had in 2000. Most of it (53%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km northeast of the city center.
- Forest lost since 2001
- 850 haabout 1,200 football pitches
- Share of its forest
- 9.1%of what there was in 2000
- Cleared for good
- 454 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 116 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 | 7 ha | 2 ha | 8 ha |
| 2002 | 11 ha | 15 ha | 26 ha |
| 2003 | 5 ha | 2 ha | 7 ha |
| 2004 | 5 ha | 3 ha | 8 ha |
| 2005 | 27 ha | 24 ha | 51 ha |
| 2006 | 17 ha | 10 ha | 28 ha |
| 2007 | 24 ha | 11 ha | 35 ha |
| 2008 | 15 ha | 22 ha | 37 ha |
| 2009 | 35 ha | 16 ha | 51 ha |
| 2010 | 61 ha | 56 ha | 116 ha |
| 2011 | 24 ha | 22 ha | 47 ha |
| 2012 | 25 ha | 16 ha | 41 ha |
| 2013 | 7 ha | 9 ha | 15 ha |
| 2014 | 16 ha | 18 ha | 34 ha |
| 2015 | 9 ha | 9 ha | 18 ha |
| 2016 | 32 ha | 25 ha | 57 ha |
| 2017 | 22 ha | 17 ha | 39 ha |
| 2018 | 19 ha | 16 ha | 35 ha |
| 2019 | 6 ha | 9 ha | 15 ha |
| 2020 | 15 ha | 18 ha | 33 ha |
| 2021 | 17 ha | 28 ha | 45 ha |
| 2022 | 12 ha | 19 ha | 31 ha |
| 2023 | 11 ha | 7 ha | 18 ha |
| 2024 | 25 ha | 6 ha | 30 ha |
| 2025 | 8 ha | 18 ha | 26 ha |
What is causing deforestation around Bytom?
- Towns and roadscleared for good47% · 402 ha
- Loggingcan grow back45% · 379 ha
- Mining and energycleared for good4.5% · 38 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
- 14,900 ha
- Forest in 2020
- 14,700 ha
- Overall change
- −170 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bytom stayed about the same size, at about 14,700 hectares: new forest grew on about 427 hectares, and about 597 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 Bytom
Same 2 km radius, same index — so they compare directly.
- Gliwice19.0 km
Poland
- Tree cover
- 44%
- Air quality
- 90
- Dąbrowa Górnicza19.4 km
Poland
- Tree cover
- 44%
- Air quality
- 115
- Tychy23.6 km
Poland
- Tree cover
- 44%
- Air quality
- 115
- Rybnik39.4 km
Poland
- Tree cover
- 42%
- Air quality
- 79
- Częstochowa51.7 km
Poland
- Tree cover
- 31%
- Air quality
- 98
- Bielsko-Biala59.0 km
Poland
- Tree cover
- 42%
- Air quality
- 84
Build your own
Compare Bytom with anywhere
This place
Bytom
Use this data
Put Bytom's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Bytom
What is the air quality (AQI) in Bytom right now?
The latest reading for Bytom shows an AQI of 101 (Unhealthy for sensitive groups), measured Nov 11, 16:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Wojkowice, 7.8 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Bytom today?
At AQI 101 (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 Bytom been like this week?
Over the last 7 days, the CAMS air-quality model put Bytom's daily AQI at 124 on average, from 67 on Nov 3 to an hourly peak of 213 on Nov 8. On 5 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Bytom lost since 2001?
Since 2001, the area within 10 km of Bytom has lost about 850 hectares of forest (about 1,200 football pitches): 9.1% of the forest it had in 2000. Most of it (53%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Bytom stayed about the same size, at about 14,700 hectares: new forest grew on about 427 hectares, and about 597 hectares were lost.
What is the tree count in Bytom?
Bytom has an estimated 134,548 trees across the 12.52 km² of land measured — 43.0% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Bytom need?
Bytom has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Bytom's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Bytom, 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 Bytom; 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