City report · Pomerania, Poland
Gdynia Air quality today
Air quality in Gdynia currently reads AQI 72 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 72
Moderate
- PM2.5, fine particles (µg/m³)
- 20.4
- tree cover
- 45.3%
- trees in this area
- 118K
- more trees needed
- 0
Measured across a 2 km radius around Działki Leśne, Gdynia, Poland (12.57 km²), from a satellite image of Sep 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Gdynia · AQI 72 (Moderate)
Gdynia's tree count comes to 118,405 trees across 10.46 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Gdynia today: AQI 72, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Gdynia, ul. Porębskiego, 5.3 km away · median of 2 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
20.4
PM10
21.8
NO₂
7.9
O₃
40.2
SO₂
2.9
CO
—
Data: OpenAQ · EEA
- 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 Gdynia's daily AQI at 49 on average, from 24 on Nov 4 to an hourly peak of 134 on Nov 8.
Where Gdynia stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Gdynia: Healthy tree cover
45.3% tree cover against a 30% healthy-neighborhood target, across 10.46 km² of land.
Trees in this area
118,405
Target trees
118,405
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Gdynia lost?
Since 2001, the area within 10 km of Gdynia has lost about 566 hectares of forest (about 790 football pitches): 6.2% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 122 hectares (22%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 4 km west of the city center.
- Forest lost since 2001
- 566 haabout 790 football pitches
- Share of its forest
- 6.2%of what there was in 2000
- Cleared for good
- 122 hadeforestation: turned into farms, mines or towns
The worst year was 2003, when about 44 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 | 2 ha | 3 ha |
| 2002 | under 1 ha | 5 ha | 5 ha |
| 2003 | 5 ha | 39 ha | 44 ha |
| 2004 | 3 ha | 15 ha | 18 ha |
| 2005 | 1 ha | 12 ha | 13 ha |
| 2006 | 2 ha | 9 ha | 12 ha |
| 2007 | 4 ha | 18 ha | 21 ha |
| 2008 | 2 ha | 19 ha | 21 ha |
| 2009 | 7 ha | 24 ha | 31 ha |
| 2010 | 5 ha | 17 ha | 22 ha |
| 2011 | 3 ha | 33 ha | 36 ha |
| 2012 | 5 ha | 10 ha | 15 ha |
| 2013 | 2 ha | 3 ha | 5 ha |
| 2014 | 3 ha | 9 ha | 12 ha |
| 2015 | 5 ha | 21 ha | 26 ha |
| 2016 | 5 ha | 28 ha | 33 ha |
| 2017 | 10 ha | 33 ha | 43 ha |
| 2018 | 1 ha | 21 ha | 22 ha |
| 2019 | 4 ha | 27 ha | 31 ha |
| 2020 | 29 ha | 12 ha | 41 ha |
| 2021 | 6 ha | 18 ha | 23 ha |
| 2022 | 4 ha | 18 ha | 22 ha |
| 2023 | 7 ha | 10 ha | 17 ha |
| 2024 | 2 ha | 12 ha | 14 ha |
| 2025 | 6 ha | 29 ha | 35 ha |
What is causing deforestation around Gdynia?
- Loggingcan grow back75% · 423 ha
- Towns and roadscleared for good22% · 122 ha
- Unknown causescause unknown3.7% · 21 ha
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
- 8,890 ha
- Forest in 2020
- 9,280 ha
- Overall change
- +396 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Gdynia grew from about 8,890 hectares to 9,280 hectares, a net gain of about 396 hectares (+4.5%). New forest grew on about 544 hectares, while 147 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
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Frequently asked
Questions about Gdynia
What is the air quality (AQI) in Gdynia right now?
The latest reading for Gdynia shows an AQI of 72 (Moderate), measured Nov 11, 16:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Gdynia, ul. Porębskiego, 5.3 km away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Gdynia today?
At AQI 72 (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 Gdynia been like this week?
Over the last 7 days, the CAMS air-quality model put Gdynia's daily AQI at 49 on average, from 24 on Nov 4 to an hourly peak of 134 on Nov 8. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Gdynia lost since 2001?
Since 2001, the area within 10 km of Gdynia has lost about 566 hectares of forest (about 790 football pitches): 6.2% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 122 hectares (22%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Gdynia grew from about 8,890 hectares to 9,280 hectares, a net gain of about 396 hectares (+4.5%). New forest grew on about 544 hectares, while 147 hectares were lost.
What is the tree count in Gdynia?
Gdynia has an estimated 118,405 trees across the 10.46 km² of land measured — 45.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Gdynia need?
Gdynia has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Gdynia's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Działki Leśne, 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 Działki Leśne; the tree count is an estimate derived from that cover.
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