Poland · Greater Poland · 2 cities
Air quality in Greater Poland today The AQI right now, city by city
Right now, Poznań has the cleanest air of the 2 cities we track in Greater Poland (AQI 77, Moderate), and Kalisz the worst (AQI 78, Moderate). Kalisz has the most tree cover, at 37.1% — #21 of 39 cities measured in Poland.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
- cities tracked
- 2
- average tree cover
- 35.8%
- Poland: 37.6%
- worst air now: Kalisz
- 78
- cleanest air now: Poznań
- 77
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Greater Poland
Air quality today across Greater Poland, city by city
| Poznań | 77Moderate | 34.5% | — | #24 of 39 |
|---|---|---|---|---|
| Kalisz | 78Moderate | 37.1% | — | #21 of 39 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Poland.
Deforestation · 2001–2025
How much forest has Greater Poland lost?
Since 2001, Greater Poland has lost about 153,000 hectares of forest (about 210,000 football pitches): 19% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1,890 hectares (1.2%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 153,000 haabout 210,000 football pitches
- Share of its forest
- 19%of what there was in 2000
- Cleared for good
- 1,890 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 22 ha | 1,610 ha | 1,630 ha |
| 2002 | 43 ha | 3,530 ha | 3,570 ha |
| 2003 | 35 ha | 3,360 ha | 3,400 ha |
| 2004 | 44 ha | 3,900 ha | 3,940 ha |
| 2005 | 139 ha | 8,730 ha | 8,860 ha |
| 2006 | 43 ha | 3,350 ha | 3,400 ha |
| 2007 | 54 ha | 3,920 ha | 3,980 ha |
| 2008 | 59 ha | 3,750 ha | 3,810 ha |
| 2009 | 87 ha | 5,210 ha | 5,300 ha |
| 2010 | 95 ha | 6,600 ha | 6,700 ha |
| 2011 | 147 ha | 5,960 ha | 6,100 ha |
| 2012 | 179 ha | 5,680 ha | 5,860 ha |
| 2013 | 22 ha | 3,820 ha | 3,840 ha |
| 2014 | 99 ha | 6,340 ha | 6,440 ha |
| 2015 | 90 ha | 4,960 ha | 5,050 ha |
| 2016 | 131 ha | 7,790 ha | 7,920 ha |
| 2017 | 90 ha | 9,760 ha | 9,850 ha |
| 2018 | 81 ha | 8,160 ha | 8,240 ha |
| 2019 | 129 ha | 8,000 ha | 8,130 ha |
| 2020 | 46 ha | 7,270 ha | 7,310 ha |
| 2021 | 78 ha | 7,890 ha | 7,970 ha |
| 2022 | 66 ha | 9,170 ha | 9,230 ha |
| 2023 | 38 ha | 7,210 ha | 7,250 ha |
| 2024 | 24 ha | 7,070 ha | 7,100 ha |
| 2025 | 48 ha | 7,970 ha | 8,020 ha |
Forest loss has stayed about the same: about 7,910 hectares a year in 2021–2025, against 8,290 hectares a year in 2016–2020. The worst year was 2017, when about 9,850 hectares of forest were lost.
What is causing deforestation in Greater Poland?
- Loggingcan grow back98% · 150,000 ha
Also: towns and roads, mining and energy, farms, pasture and plantations, storms, floods and other natural causes, wildfires, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. How it's measured
Other regions in Poland
Clean-air buying guides
Cleaner air at home in Greater Poland
Picked by tested clean-air delivery rate (CADR), noise and running cost, from independent test labels. No brand pays to be listed.
- The best air purifiers for wildfire smoke and smog
Air purifiers that keep up with wildfire smoke and winter smog, ranked by verified smoke CADR, with the room each one clears on a smoky day.
- The best air purifiers for bedrooms: quiet picks sized for your room
Quiet HEPA air purifiers for bedrooms, compared on what matters at night: noise on the lowest setting (from 20 dB), verified room size and filter cost.
- The best air purifiers under $200
Good HEPA air purifiers under $200 at the makers' own prices, compared on verified clean air, room size and what the filters cost each year.
Your own street