City report · São Paulo, Brazil
Guarujá Air quality today
Air quality in Guarujá currently reads AQI 28 (Good): Air quality is satisfactory for everyone.
AQI 28
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.1
- tree cover
- 46.8%
- trees in this area
- 98.7K
- more trees needed
- 0
Measured across a 2 km radius around Vila Maia, Guarujá - SP, Brazil (12.57 km²), from a satellite image of Nov 3, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Guarujá · AQI 28 (Good)
Guarujá's tree count comes to 98,655 trees across 8.43 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Guarujá today: AQI 28, Good
Main pollutant: PM10 · Observed Nov 11, 12:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Cubatão-Centro, São Paulo, Brazil, 20.8 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.1
PM10
30.2
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, CETESB - Companhia Ambiental do Estado de São Paulo
- 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 Guarujá's daily AQI at 56 on average, from 48 on Nov 8 to an hourly peak of 85 on Nov 5.
Where Guarujá stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Guarujá: Healthy tree cover
46.8% tree cover against a 30% healthy-neighborhood target, across 8.43 km² of land.
Trees in this area
98,655
Target trees
98,655
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Guarujá lost?
Since 2001, the area within 10 km of Guarujá has lost about 105 hectares of forest (about 150 football pitches): 1.5% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from June 2017 of a 5 × 5 km area about 5 km northeast of the city center.
- Forest lost since 2001
- 105 haabout 150 football pitches
- Share of its forest
- 1.5%of what there was in 2000
- Cleared for good
- 91 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 10 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 | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 5 ha | under 1 ha | 5 ha |
| 2004 | under 1 ha | under 1 ha | 1 ha |
| 2005 | 6 ha | 1 ha | 8 ha |
| 2006 | 2 ha | under 1 ha | 3 ha |
| 2007 | 6 ha | under 1 ha | 7 ha |
| 2008 | 1 ha | under 1 ha | 2 ha |
| 2009 | 5 ha | under 1 ha | 5 ha |
| 2010 | 2 ha | under 1 ha | 2 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 2 ha | under 1 ha | 2 ha |
| 2013 | 3 ha | under 1 ha | 4 ha |
| 2014 | 6 ha | under 1 ha | 6 ha |
| 2015 | 9 ha | under 1 ha | 9 ha |
| 2016 | 10 ha | under 1 ha | 10 ha |
| 2017 | 8 ha | 2 ha | 10 ha |
| 2018 | 2 ha | under 1 ha | 3 ha |
| 2019 | 3 ha | under 1 ha | 3 ha |
| 2020 | 3 ha | under 1 ha | 4 ha |
| 2021 | 8 ha | under 1 ha | 8 ha |
| 2022 | 3 ha | under 1 ha | 3 ha |
| 2023 | 3 ha | 4 ha | 6 ha |
| 2024 | 3 ha | 2 ha | 4 ha |
| 2025 | 2 ha | under 1 ha | 2 ha |
What is causing deforestation around Guarujá?
- Towns and roadscleared for good82% · 86 ha
- Storms, floods and other natural causescan grow back6% · 6 ha
- Farms, pasture and plantationscleared for good4.8% · 5 ha
Also: shifting farming, 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
- 7,150 ha
- Forest in 2020
- 7,240 ha
- Overall change
- +88 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Guarujá stayed about the same size, at about 7,240 hectares: new forest grew on about 217 hectares, and about 129 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 Guarujá
Same 2 km radius, same index — so they compare directly.
- Praia Grande14.9 km
Brazil
- Tree cover
- 47%
- Air quality
- 28
- Cubatão20.3 km
Brazil
- Tree cover
- 58%
- Air quality
- 28
- Mauá41.8 km
Brazil
- Tree cover
- 22%
- Air quality
- 46
- São Bernardo do Campo45.7 km
Brazil
- Tree cover
- 16%
- Air quality
- 40
- São Caetano do Sul50.9 km
Brazil
- Tree cover
- 12%
- Air quality
- 46
- Mogi das Cruzes52.8 km
Brazil
- Tree cover
- 17%
- Air quality
- 25
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Frequently asked
Questions about Guarujá
What is the air quality (AQI) in Guarujá right now?
The latest reading for Guarujá shows an AQI of 28 (Good), measured Nov 11, 12:00 local time by the Cubatão-Centro, São Paulo, Brazil ground monitoring station, 20.8 km away, via OpenAQ. The main pollutant is PM10. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Guarujá today?
At AQI 28 (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 Guarujá been like this week?
Over the last 7 days, the CAMS air-quality model put Guarujá's daily AQI at 56 on average, from 48 on Nov 8 to an hourly peak of 85 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 Guarujá lost since 2001?
Since 2001, the area within 10 km of Guarujá has lost about 105 hectares of forest (about 150 football pitches): 1.5% of the forest it had in 2000. Most of it (87%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Guarujá stayed about the same size, at about 7,240 hectares: new forest grew on about 217 hectares, and about 129 hectares were lost.
What is the tree count in Guarujá?
Guarujá has an estimated 98,655 trees across the 8.43 km² of land measured — 46.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Guarujá need?
Guarujá has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Guarujá's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Vila Maia, 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 Vila Maia; the tree count is an estimate derived from that cover.
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