City report · Silesia, Poland
Tychy Air quality today
Air quality in Tychy currently reads AQI 115 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 115
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 41.2
- tree cover
- 44.2%
- trees in this area
- 139K
- more trees needed
- 0
Measured across a 2 km radius around Tychy, Poland (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Tychy · AQI 115 (Unhealthy for sensitive groups)
Tychy's tree count comes to 138,858 trees across 12.57 km², already at or above the 35% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Tychy today: AQI 115, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Katowice, Zawodzie, 15.2 km away · median of 9 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
41.2
PM10
19.5
NO₂
21.1
O₃
50.9
SO₂
9.9
CO
346.0
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 Tychy's daily AQI at 135 on average, from 96 on Nov 4 to an hourly peak of 204 on Nov 6.
Where Tychy stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Tychy: Healthy tree cover
44.2% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
138,858
Target trees
138,858
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Tychy lost?
Since 2001, the area within 10 km of Tychy has lost about 2,610 hectares of forest (about 3,700 football pitches): 16% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 46 hectares (1.8%) 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 southwest of the city center.
- Forest lost since 2001
- 2,610 haabout 3,700 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 46 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 141 hectares a year in 2021–2025, against 133 hectares a year in 2016–2020. The worst year was 2005, when about 224 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 | 26 ha | 26 ha |
| 2002 | 1 ha | 66 ha | 67 ha |
| 2003 | under 1 ha | 46 ha | 47 ha |
| 2004 | under 1 ha | 23 ha | 23 ha |
| 2005 | 2 ha | 222 ha | 224 ha |
| 2006 | under 1 ha | 16 ha | 16 ha |
| 2007 | under 1 ha | 45 ha | 45 ha |
| 2008 | 2 ha | 90 ha | 92 ha |
| 2009 | under 1 ha | 23 ha | 24 ha |
| 2010 | 2 ha | 129 ha | 131 ha |
| 2011 | under 1 ha | 93 ha | 94 ha |
| 2012 | 1 ha | 85 ha | 86 ha |
| 2013 | 1 ha | 97 ha | 98 ha |
| 2014 | 2 ha | 177 ha | 179 ha |
| 2015 | under 1 ha | 89 ha | 90 ha |
| 2016 | 2 ha | 201 ha | 203 ha |
| 2017 | 7 ha | 144 ha | 151 ha |
| 2018 | 2 ha | 117 ha | 119 ha |
| 2019 | under 1 ha | 77 ha | 78 ha |
| 2020 | 2 ha | 112 ha | 114 ha |
| 2021 | 3 ha | 145 ha | 148 ha |
| 2022 | 2 ha | 177 ha | 178 ha |
| 2023 | 3 ha | 119 ha | 122 ha |
| 2024 | 7 ha | 152 ha | 159 ha |
| 2025 | 4 ha | 96 ha | 100 ha |
What is causing deforestation around Tychy?
- Loggingcan grow back98% · 2,560 ha
- Towns and roadscleared for good1.7% · 46 ha
Also: mining and energy, 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
- 19,600 ha
- Forest in 2020
- 19,400 ha
- Overall change
- −172 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Tychy stayed about the same size, at about 19,400 hectares: new forest grew on about 354 hectares, and about 526 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 Tychy
Same 2 km radius, same index — so they compare directly.
- Katowice14.2 km
Poland
- Tree cover
- 27%
- Air quality
- 115
- Ruda Śląska15.6 km
Poland
- Tree cover
- 57%
- Air quality
- 108
- Bytom23.6 km
Poland
- Tree cover
- 43%
- Air quality
- 101
- Zabrze24.5 km
Poland
- Tree cover
- 42%
- Air quality
- 108
- Gliwice27.3 km
Poland
- Tree cover
- 44%
- Air quality
- 90
- Dąbrowa Górnicza27.7 km
Poland
- Tree cover
- 44%
- Air quality
- 115
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Frequently asked
Questions about Tychy
What is the air quality (AQI) in Tychy right now?
The latest reading for Tychy shows an AQI of 115 (Unhealthy for sensitive groups), measured Nov 11, 17:00 local time by 9 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Katowice, Zawodzie, 15.2 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Tychy today?
At AQI 115 (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 Tychy been like this week?
Over the last 7 days, the CAMS air-quality model put Tychy's daily AQI at 135 on average, from 96 on Nov 4 to an hourly peak of 204 on Nov 6. On 6 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Tychy lost since 2001?
Since 2001, the area within 10 km of Tychy has lost about 2,610 hectares of forest (about 3,700 football pitches): 16% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 46 hectares (1.8%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 141 hectares a year in 2021–2025, against 133 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Tychy stayed about the same size, at about 19,400 hectares: new forest grew on about 354 hectares, and about 526 hectares were lost.
What is the tree count in Tychy?
Tychy has an estimated 138,858 trees across the 12.57 km² measured — 44.2% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Tychy need?
Tychy has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Tychy's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Tychy, 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 Tychy; the tree count is an estimate derived from that cover.
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