City report · Rio Grande do Sul, Brazil
Gravataí Air quality today
Air quality in Gravataí currently reads AQI 42 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 42
Good
- PM2.5, fine particles (µg/m³)
- 6.8
- tree cover
- 41.9%
- trees in this area
- 131K
- more trees needed
- 0
Measured across a 2 km radius around Centro, Gravataí - 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.
Gravataí · AQI 42 (Good)
Gravataí's tree count comes to 131,106 trees across 12.52 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Gravataí today: AQI 42, 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
6.8
PM10
9.1
NO₂
5.2
O₃
36.0
SO₂
2.9
CO
82.0
- 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 Gravataí's daily AQI at 38 on average, from 21 on Nov 6 to an hourly peak of 60 on Nov 5.
Where Gravataí stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Gravataí: Healthy tree cover
41.9% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
131,106
Target trees
131,106
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Gravataí lost?
Since 2001, the area within 10 km of Gravataí has lost about 975 hectares of forest (about 1,400 football pitches): 9.2% of the forest it had in 2000. Most of it (59%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from February 2017 of a 5 × 5 km area about 3 km east of the city center.
- Forest lost since 2001
- 975 haabout 1,400 football pitches
- Share of its forest
- 9.2%of what there was in 2000
- Cleared for good
- 576 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 60 hectares a year in 2021–2025, up from 46 hectares a year in 2016–2020. The worst year was 2024, when about 119 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 | 15 ha | 16 ha | 31 ha |
| 2002 | 14 ha | 7 ha | 22 ha |
| 2003 | 9 ha | 14 ha | 23 ha |
| 2004 | 17 ha | 10 ha | 27 ha |
| 2005 | 15 ha | 9 ha | 23 ha |
| 2006 | 23 ha | 11 ha | 34 ha |
| 2007 | 15 ha | 11 ha | 26 ha |
| 2008 | 21 ha | 13 ha | 33 ha |
| 2009 | 22 ha | 6 ha | 28 ha |
| 2010 | 25 ha | 11 ha | 35 ha |
| 2011 | 6 ha | 2 ha | 7 ha |
| 2012 | 17 ha | 11 ha | 29 ha |
| 2013 | 45 ha | 9 ha | 54 ha |
| 2014 | 28 ha | 21 ha | 49 ha |
| 2015 | 16 ha | 11 ha | 27 ha |
| 2016 | 30 ha | 28 ha | 58 ha |
| 2017 | 57 ha | 24 ha | 81 ha |
| 2018 | 12 ha | 10 ha | 22 ha |
| 2019 | 22 ha | 17 ha | 39 ha |
| 2020 | 21 ha | 8 ha | 29 ha |
| 2021 | 25 ha | 14 ha | 39 ha |
| 2022 | 29 ha | 6 ha | 35 ha |
| 2023 | 38 ha | 21 ha | 60 ha |
| 2024 | 32 ha | 87 ha | 119 ha |
| 2025 | 21 ha | 25 ha | 45 ha |
What is causing deforestation around Gravataí?
- Loggingcan grow back40% · 387 ha
- Towns and roadscleared for good35% · 343 ha
- Farms, pasture and plantationscleared for good24% · 234 ha
Also: 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
- 6,790 ha
- Forest in 2020
- 7,250 ha
- Overall change
- +465 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Gravataí grew from about 6,790 hectares to 7,250 hectares, a net gain of about 465 hectares (+6.8%). New forest grew on about 970 hectares, while 505 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 Gravataí
Same 2 km radius, same index — so they compare directly.
- Viamão15.7 km
Brazil
- Tree cover
- 58%
- Air quality
- 38
- Canoas18.6 km
Brazil
- Tree cover
- 20%
- Air quality
- 49
- Porto Alegre25.0 km
Brazil
- Tree cover
- 22%
- Air quality
- 44
- São Leopoldo25.1 km
Brazil
- Tree cover
- 32%
- Air quality
- 26
- Novo Hamburgo32.2 km
Brazil
- Tree cover
- 31%
- Air quality
- 28
- Caxias do Sul87.9 km
Brazil
- Tree cover
- 18%
- Air quality
- 25
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Frequently asked
Questions about Gravataí
What is the air quality (AQI) in Gravataí right now?
The latest reading for Gravataí shows an AQI of 42 (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 Gravataí today?
At AQI 42 (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 Gravataí been like this week?
Over the last 7 days, the CAMS air-quality model put Gravataí's daily AQI at 38 on average, from 21 on Nov 6 to an hourly peak of 60 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Gravataí lost since 2001?
Since 2001, the area within 10 km of Gravataí has lost about 975 hectares of forest (about 1,400 football pitches): 9.2% of the forest it had in 2000. Most of it (59%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss is speeding up: about 60 hectares a year in 2021–2025, up from 46 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Gravataí grew from about 6,790 hectares to 7,250 hectares, a net gain of about 465 hectares (+6.8%). New forest grew on about 970 hectares, while 505 hectares were lost.
What is the tree count in Gravataí?
Gravataí has an estimated 131,106 trees across the 12.52 km² of land measured — 41.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Gravataí need?
Gravataí has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Gravataí'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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