City report · São Paulo, Brazil
Guaratinguetá Air quality today
Air quality in Guaratinguetá currently reads AQI 46 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 46
Good
- PM2.5, fine particles (µg/m³)
- 8.2
- tree cover
- 31.3%
- trees in this area
- 97.5K
- more trees needed
- 0
Measured across a 2 km radius around Centro Histórico, Guaratinguetá - SP, Brazil (12.57 km²), from a satellite image of Sep 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Guaratinguetá · AQI 46 (Good)
Guaratinguetá's tree count comes to 97,545 trees across 12.47 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Guaratinguetá today: AQI 46, Good
Main pollutant: PM2.5 · Observed Nov 11, 11:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Guaratinguetá, São Paulo, Brazil, 1.6 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.2
PM10
—
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 Guaratinguetá's daily AQI at 39 on average, from 17 on Nov 9 to an hourly peak of 72 on Nov 5.
Where Guaratinguetá stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Guaratinguetá: Healthy tree cover
31.3% tree cover against a 30% healthy-neighborhood target, across 12.47 km² of land.
Trees in this area
97,545
Target trees
97,545
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Guaratinguetá lost?
Since 2001, the area within 10 km of Guaratinguetá has lost about 829 hectares of forest (about 1,200 football pitches): 13% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 192 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km east of the city center.
- Forest lost since 2001
- 829 haabout 1,200 football pitches
- Share of its forest
- 13%of what there was in 2000
- Cleared for good
- 192 hadeforestation: turned into farms, mines or towns
The worst year was 2012, when about 176 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 | 9 ha | 10 ha | 19 ha |
| 2002 | 15 ha | 2 ha | 17 ha |
| 2003 | 26 ha | 26 ha | 52 ha |
| 2004 | 4 ha | 13 ha | 17 ha |
| 2005 | 6 ha | 18 ha | 24 ha |
| 2006 | 15 ha | 7 ha | 22 ha |
| 2007 | 6 ha | 8 ha | 13 ha |
| 2008 | 1 ha | 9 ha | 11 ha |
| 2009 | 10 ha | under 1 ha | 10 ha |
| 2010 | 15 ha | 6 ha | 21 ha |
| 2011 | 8 ha | 39 ha | 47 ha |
| 2012 | 10 ha | 166 ha | 176 ha |
| 2013 | 6 ha | 5 ha | 11 ha |
| 2014 | 9 ha | 78 ha | 86 ha |
| 2015 | 6 ha | 4 ha | 10 ha |
| 2016 | 10 ha | 18 ha | 28 ha |
| 2017 | 9 ha | 34 ha | 43 ha |
| 2018 | 3 ha | 94 ha | 97 ha |
| 2019 | 3 ha | 5 ha | 8 ha |
| 2020 | 3 ha | 5 ha | 8 ha |
| 2021 | 6 ha | 6 ha | 12 ha |
| 2022 | 4 ha | 3 ha | 7 ha |
| 2023 | 5 ha | 68 ha | 73 ha |
| 2024 | 3 ha | 2 ha | 5 ha |
| 2025 | 4 ha | 11 ha | 16 ha |
What is causing deforestation around Guaratinguetá?
- Loggingcan grow back74% · 613 ha
- Farms, pasture and plantationscleared for good19% · 157 ha
- Towns and roadscleared for good4.2% · 35 ha
Also: wildfires, storms, floods and other natural causes, 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
- 7,160 ha
- Forest in 2020
- 8,520 ha
- Overall change
- +1,370 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Guaratinguetá grew from about 7,160 hectares to 8,520 hectares, a net gain of about 1,370 hectares (+19%). New forest grew on about 1,550 hectares, while 177 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 Guaratinguetá
Same 2 km radius, same index — so they compare directly.
- Pindamonhangaba30.1 km
Brazil
- Tree cover
- 31%
- Air quality
- 56
- Taubaté43.9 km
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- Tree cover
- 17%
- Air quality
- 56
- Caçapava61.4 km
Brazil
- Tree cover
- 26%
- Air quality
- 39
- São José dos Campos81.7 km
Brazil
- Tree cover
- 48%
- Air quality
- 17
- Resende85.7 km
Brazil
- Tree cover
- 37%
- Air quality
- 6
- Angra dos Reis92.0 km
Brazil
- Tree cover
- 63%
- Air quality
- 16
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Frequently asked
Questions about Guaratinguetá
What is the air quality (AQI) in Guaratinguetá right now?
The latest reading for Guaratinguetá shows an AQI of 46 (Good), measured Nov 11, 11:00 local time by the Guaratinguetá, São Paulo, Brazil ground monitoring station, 1.6 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Guaratinguetá today?
At AQI 46 (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 Guaratinguetá been like this week?
Over the last 7 days, the CAMS air-quality model put Guaratinguetá's daily AQI at 39 on average, from 17 on Nov 9 to an hourly peak of 72 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 Guaratinguetá lost since 2001?
Since 2001, the area within 10 km of Guaratinguetá has lost about 829 hectares of forest (about 1,200 football pitches): 13% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 192 hectares (23%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Guaratinguetá grew from about 7,160 hectares to 8,520 hectares, a net gain of about 1,370 hectares (+19%). New forest grew on about 1,550 hectares, while 177 hectares were lost.
What is the tree count in Guaratinguetá?
Guaratinguetá has an estimated 97,545 trees across the 12.47 km² of land measured — 31.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Guaratinguetá need?
Guaratinguetá has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Guaratinguetá's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Centro Histórico, 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 Centro Histórico; the tree count is an estimate derived from that cover.
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