City report · Greece
Pátra Air quality today
Air quality in Pátra currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
AQI 33
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.3
- tree cover
- 16.3%
- trees in this area
- 32.6K
- more trees needed
- 27.4K
Measured across a 2 km radius around Patras, Greece (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Pátra · AQI 33 (Good)
Pátra's tree count comes to 32,619 trees across 8.01 km² of land, 14 points below the 30% tree-cover level considered healthy for this area, so roughly 27,416 more trees would close the gap.
Air quality detail
Air quality in Pátra today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 185 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 185 km, e.g. Larissa and Piraeus
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.3
PM10
11.4
NO₂
1.9
O₃
66.0
SO₂
0.4
CO
131.0
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Pátra's daily AQI at 29 on average, from 24 on Nov 11 to an hourly peak of 54 on Nov 6.
Where Pátra stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Pátra: Critically low
16.3% tree cover against a 30% healthy-neighborhood target, across 8.01 km² of land.
Trees in this area
32,619
Target trees
60,035
More trees needed
27,416
CO₂ if planted / yr
603.2 t
Deforestation · 2001–2025
How much forest has Pátra lost?
Since 2001, the area within 10 km of Pátra has lost about 324 hectares of forest (about 450 football pitches): 12% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 25 hectares (7.7%) 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 east of the city center.
- Forest lost since 2001
- 324 haabout 450 football pitches
- Share of its forest
- 12%of what there was in 2000
- Cleared for good
- 25 hadeforestation: turned into farms, mines or towns
The worst year was 2012, when about 144 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 1 ha | under 1 ha | 1 ha |
| 2004 | under 1 ha | under 1 ha | 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | 2 ha |
| 2007 | 2 ha | 3 ha | 5 ha |
| 2008 | 1 ha | 1 ha | 2 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | 2 ha | 2 ha |
| 2011 | under 1 ha | 4 ha | 4 ha |
| 2012 | under 1 ha | 144 ha | 144 ha |
| 2013 | under 1 ha | 24 ha | 24 ha |
| 2014 | under 1 ha | 7 ha | 7 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | 2 ha | 3 ha |
| 2018 | under 1 ha | 3 ha | 3 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | 15 ha | 105 ha | 120 ha |
What is causing deforestation around Pátra?
- Wildfirescan grow back82% · 264 ha
- Towns and roadscleared for good4.5% · 14 ha
- Mining and energycleared for good2.7% · 9 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
- 6,200 ha
- Forest in 2020
- 6,220 ha
- Overall change
- +26 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Pátra stayed about the same size, at about 6,220 hectares: new forest grew on about 51 hectares, and about 24 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 Pátra
What is the air quality (AQI) in Pátra right now?
The latest reading for Pátra shows an AQI of 33 (Good), observed Nov 11, 12:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 185 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Pátra today?
At AQI 33 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Pátra been like this week?
Over the last 7 days, the CAMS air-quality model put Pátra's daily AQI at 29 on average, from 24 on Nov 11 to an hourly peak of 54 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Pátra lost since 2001?
Since 2001, the area within 10 km of Pátra has lost about 324 hectares of forest (about 450 football pitches): 12% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 25 hectares (7.7%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Pátra stayed about the same size, at about 6,220 hectares: new forest grew on about 51 hectares, and about 24 hectares were lost.
What is the tree count in Pátra?
Pátra has an estimated 32,619 trees across the 8.01 km² of land measured — 16.3% tree cover, 14 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Pátra need?
Pátra needs roughly 27,416 more trees to close a 14-point shortfall against its 30% tree-cover target — about 603.2 t of extra CO₂ absorbed per year once grown.
How are Pátra's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Patras; the tree count is an estimate derived from that cover.
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