City report · Paraná, Brazil
Curitiba Air quality today
Air quality in Curitiba currently reads AQI 21 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 21
Good
- PM2.5, fine particles (µg/m³)
- 3.6
- tree cover
- 14.3%
- trees in this area
- 44.7K
- more trees needed
- 49.0K
Measured across a 2 km radius around São Francisco, Curitiba - Paraná, 82860-140, Brazil (12.57 km²), from a satellite image of Aug 1, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Curitiba · AQI 21 (Good)
Curitiba's tree count comes to 44,655 trees across 12.49 km² of land, 16 points below the 30% tree-cover level considered healthy for this area, so roughly 49,027 more trees would close the gap.
Air quality detail
Air quality in Curitiba today: AQI 21, Good
Main pollutant: PM2.5 · Observed Nov 10, 20:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.6
PM10
4.3
NO₂
9.9
O₃
38.0
SO₂
1.5
CO
136.0
- 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 Curitiba's daily AQI at 34 on average, from 23 on Nov 8 to an hourly peak of 78 on Nov 7.
Where Curitiba stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Curitiba: Critically low
14.3% tree cover against a 30% healthy-neighborhood target, across 12.49 km² of land.
Trees in this area
44,655
Target trees
93,682
More trees needed
49,027
CO₂ if planted / yr
1,079 t
Deforestation · 2001–2025
How much forest has Curitiba lost?
Since 2001, the area within 10 km of Curitiba has lost about 542 hectares of forest (about 760 football pitches): 11% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from May 2017 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 542 haabout 760 football pitches
- Share of its forest
- 11%of what there was in 2000
- Cleared for good
- 507 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 49 hectares of forest were lost.
Curitiba's full deforestation reportHectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 36 ha | 1 ha | 37 ha |
| 2002 | 11 ha | under 1 ha | 12 ha |
| 2003 | 22 ha | under 1 ha | 23 ha |
| 2004 | 17 ha | under 1 ha | 18 ha |
| 2005 | 36 ha | 1 ha | 37 ha |
| 2006 | 21 ha | 2 ha | 23 ha |
| 2007 | 20 ha | 1 ha | 21 ha |
| 2008 | 47 ha | 2 ha | 49 ha |
| 2009 | 22 ha | under 1 ha | 22 ha |
| 2010 | 30 ha | 16 ha | 46 ha |
| 2011 | 17 ha | 1 ha | 18 ha |
| 2012 | 33 ha | under 1 ha | 33 ha |
| 2013 | 17 ha | under 1 ha | 17 ha |
| 2014 | 30 ha | 4 ha | 34 ha |
| 2015 | 10 ha | under 1 ha | 11 ha |
| 2016 | 11 ha | under 1 ha | 11 ha |
| 2017 | 24 ha | under 1 ha | 24 ha |
| 2018 | 17 ha | under 1 ha | 17 ha |
| 2019 | 11 ha | under 1 ha | 12 ha |
| 2020 | 14 ha | under 1 ha | 14 ha |
| 2021 | 13 ha | under 1 ha | 13 ha |
| 2022 | 9 ha | under 1 ha | 9 ha |
| 2023 | 18 ha | under 1 ha | 18 ha |
| 2024 | 7 ha | under 1 ha | 7 ha |
| 2025 | 17 ha | 2 ha | 18 ha |
What is causing deforestation around Curitiba?
- Towns and roadscleared for good93% · 505 ha
- Loggingcan grow back3.8% · 21 ha
- Unknown causescause unknown2.7% · 15 ha
Also: farms, pasture and plantations.
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
- 6,450 ha
- Forest in 2020
- 6,250 ha
- Overall change
- −204 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Curitiba shrank from about 6,450 hectares to 6,250 hectares, a net loss of about 204 hectares (−3.2%). New forest grew on about 184 hectares, but 387 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 Curitiba
Same 2 km radius, same index — so they compare directly.
- Almirante Tamandaré12.0 km
Brazil
- Tree cover
- 57%
- Air quality
- 26
- São José dos Pinhais13.1 km
Brazil
- Tree cover
- 29%
- Air quality
- 11
- Colombo15.9 km
Brazil
- Tree cover
- 55%
- Air quality
- 7
- Piraquara20.7 km
Brazil
- Tree cover
- 48%
- Air quality
- 39
- Araucária23.0 km
Brazil
- Tree cover
- 48%
- Air quality
- 33
- Fazenda Rio Grande25.8 km
Brazil
- Tree cover
- 21%
- Air quality
- 39
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Frequently asked
Questions about Curitiba
What is the air quality (AQI) in Curitiba right now?
The latest reading for Curitiba shows an AQI of 21 (Good), observed Nov 10, 20:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Curitiba today?
At AQI 21 (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 Curitiba been like this week?
Over the last 7 days, the CAMS air-quality model put Curitiba's daily AQI at 34 on average, from 23 on Nov 8 to an hourly peak of 78 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Curitiba lost since 2001?
Since 2001, the area within 10 km of Curitiba has lost about 542 hectares of forest (about 760 football pitches): 11% of the forest it had in 2000. Most of it (94%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Curitiba shrank from about 6,450 hectares to 6,250 hectares, a net loss of about 204 hectares (−3.2%). New forest grew on about 184 hectares, but 387 hectares were lost.
What is the tree count in Curitiba?
Curitiba has an estimated 44,655 trees across the 12.49 km² of land measured — 14.3% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Curitiba need?
Curitiba needs roughly 49,027 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,079 t of extra CO₂ absorbed per year once grown.
How are Curitiba'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 São Francisco; the tree count is an estimate derived from that cover.
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