City report · Rio Grande do Sul, Brazil
Canoas Air quality today
Air quality in Canoas currently reads AQI 49 (Good): Air quality is satisfactory for everyone.
AQI 49
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.9
- tree cover
- 19.5%
- trees in this area
- 61.2K
- more trees needed
- 33.0K
Measured across a 2 km radius around Centro, Canoas - RS, Brazil (12.57 km²), from a satellite image of Oct 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Canoas · AQI 49 (Good)
Canoas's tree count comes to 61,200 trees across 12.56 km² of land, 10 points below the 30% tree-cover level considered healthy for this area, so roughly 32,954 more trees would close the gap.
Air quality detail
Air quality in Canoas today: AQI 49, Good
Main pollutant: PM2.5 · Observed Nov 11, 02:00 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
7.9
PM10
9.9
NO₂
8.2
O₃
32.0
SO₂
3.1
CO
118.0
- 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 Canoas's daily AQI at 40 on average, from 24 on Nov 6 to an hourly peak of 60 on Nov 9.
Where Canoas stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Canoas: Below target
19.5% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
61,200
Target trees
94,154
More trees needed
32,954
CO₂ if planted / yr
725.0 t
Deforestation · 2001–2025
How much forest has Canoas lost?
Since 2001, the area within 10 km of Canoas has lost about 833 hectares of forest (about 1,200 football pitches): 13% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from March 2017 of a 5 × 5 km area about 5 km northeast of the city center.
- Forest lost since 2001
- 833 haabout 1,200 football pitches
- Share of its forest
- 13%of what there was in 2000
- Cleared for good
- 770 hadeforestation: turned into farms, mines or towns
The worst year was 2014, when about 73 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 | 60 ha | 7 ha | 66 ha |
| 2002 | 31 ha | 3 ha | 34 ha |
| 2003 | 17 ha | under 1 ha | 18 ha |
| 2004 | 24 ha | 2 ha | 26 ha |
| 2005 | 32 ha | 2 ha | 34 ha |
| 2006 | 55 ha | under 1 ha | 55 ha |
| 2007 | 40 ha | under 1 ha | 41 ha |
| 2008 | 29 ha | under 1 ha | 29 ha |
| 2009 | 39 ha | 4 ha | 43 ha |
| 2010 | 32 ha | 2 ha | 34 ha |
| 2011 | 23 ha | 3 ha | 26 ha |
| 2012 | 51 ha | 2 ha | 53 ha |
| 2013 | 50 ha | 6 ha | 56 ha |
| 2014 | 70 ha | 4 ha | 73 ha |
| 2015 | 7 ha | under 1 ha | 8 ha |
| 2016 | 23 ha | 3 ha | 26 ha |
| 2017 | 27 ha | 1 ha | 29 ha |
| 2018 | 10 ha | 1 ha | 11 ha |
| 2019 | 6 ha | under 1 ha | 7 ha |
| 2020 | 12 ha | 1 ha | 13 ha |
| 2021 | 30 ha | under 1 ha | 30 ha |
| 2022 | 20 ha | 13 ha | 33 ha |
| 2023 | 27 ha | 2 ha | 29 ha |
| 2024 | 29 ha | 4 ha | 34 ha |
| 2025 | 25 ha | 1 ha | 26 ha |
What is causing deforestation around Canoas?
- Towns and roadscleared for good81% · 672 ha
- Farms, pasture and plantationscleared for good10% · 84 ha
- Loggingcan grow back4.7% · 40 ha
Also: mining and energy, 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.
Forest gained and lost, 2000–2020
- Forest in 2000
- 4,900 ha
- Forest in 2020
- 4,690 ha
- Overall change
- −210 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Canoas shrank from about 4,900 hectares to 4,690 hectares, a net loss of about 210 hectares (−4.3%). New forest grew on about 447 hectares, but 657 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 Canoas
Same 2 km radius, same index — so they compare directly.
- Porto Alegre13.6 km
Brazil
- Tree cover
- 22%
- Air quality
- 44
- Alvorada13.8 km
Brazil
- Tree cover
- 22%
- Air quality
- 56
- São Leopoldo17.9 km
Brazil
- Tree cover
- 32%
- Air quality
- 26
- Gravataí18.6 km
Brazil
- Tree cover
- 42%
- Air quality
- 42
- Viamão23.8 km
Brazil
- Tree cover
- 58%
- Air quality
- 38
- Novo Hamburgo27.1 km
Brazil
- Tree cover
- 31%
- Air quality
- 28
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Frequently asked
Questions about Canoas
What is the air quality (AQI) in Canoas right now?
The latest reading for Canoas shows an AQI of 49 (Good), observed Nov 11, 02:00 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 Canoas today?
At AQI 49 (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 Canoas been like this week?
Over the last 7 days, the CAMS air-quality model put Canoas's daily AQI at 40 on average, from 24 on Nov 6 to an hourly peak of 60 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Canoas lost since 2001?
Since 2001, the area within 10 km of Canoas has lost about 833 hectares of forest (about 1,200 football pitches): 13% of the forest it had in 2000. Most of it (92%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Canoas shrank from about 4,900 hectares to 4,690 hectares, a net loss of about 210 hectares (−4.3%). New forest grew on about 447 hectares, but 657 hectares were lost.
What is the tree count in Canoas?
Canoas has an estimated 61,200 trees across the 12.56 km² of land measured — 19.5% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Canoas need?
Canoas needs roughly 32,954 more trees to close a 10-point shortfall against its 30% tree-cover target — about 725.0 t of extra CO₂ absorbed per year once grown.
How are Canoas'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 Centro; the tree count is an estimate derived from that cover.
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