City report · São Paulo, Brazil
Mauá Air quality today
Air quality in Mauá currently reads AQI 51 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 51
Moderate
- PM2.5, fine particles (µg/m³)
- 9.1
- tree cover
- 22.1%
- trees in this area
- 69.4K
- more trees needed
- 24.8K
Measured across a 2 km radius around Centro, Mauá - 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.
Mauá · AQI 51 (Moderate)
Mauá's tree count comes to 69,429 trees across 12.57 km², 8 points below the 30% tree-cover level considered healthy for this area, so roughly 24,819 more trees would close the gap.
Air quality detail
Air quality in Mauá today: AQI 51, Moderate
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 · Mauá, São Paulo, Brazil, 500 m away · median of 4 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
9.1
PM10
11.9
NO₂
—
O₃
—
SO₂
—
CO
—
Data: World Air Quality Index Project, CETESB - Companhia Ambiental do Estado de São Paulo
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Mauá's daily AQI at 60 on average, from 39 on Nov 8 to an hourly peak of 113 on Nov 6.
Where Mauá stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mauá: Below target
22.1% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
69,429
Target trees
94,248
More trees needed
24,819
CO₂ if planted / yr
546.0 t
Deforestation · 2001–2025
How much forest has Mauá lost?
Since 2001, the area within 10 km of Mauá has lost about 901 hectares of forest (about 1,300 football pitches): 8.9% of the forest it had in 2000. Most of it (96%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km northeast of the city center.
- Forest lost since 2001
- 901 haabout 1,300 football pitches
- Share of its forest
- 8.9%of what there was in 2000
- Cleared for good
- 868 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 20 hectares a year in 2021–2025, down from 56 hectares a year in 2016–2020. The worst year was 2007, when about 99 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 | 8 ha | under 1 ha | 8 ha |
| 2002 | 16 ha | under 1 ha | 16 ha |
| 2003 | 9 ha | under 1 ha | 9 ha |
| 2004 | 22 ha | under 1 ha | 23 ha |
| 2005 | 6 ha | under 1 ha | 6 ha |
| 2006 | 2 ha | 2 ha | 5 ha |
| 2007 | 95 ha | 3 ha | 99 ha |
| 2008 | 23 ha | 4 ha | 27 ha |
| 2009 | 22 ha | under 1 ha | 23 ha |
| 2010 | 92 ha | 1 ha | 93 ha |
| 2011 | 8 ha | under 1 ha | 8 ha |
| 2012 | 67 ha | under 1 ha | 67 ha |
| 2013 | 97 ha | 2 ha | 98 ha |
| 2014 | 21 ha | 3 ha | 23 ha |
| 2015 | 18 ha | under 1 ha | 18 ha |
| 2016 | 39 ha | under 1 ha | 39 ha |
| 2017 | 81 ha | 1 ha | 82 ha |
| 2018 | 85 ha | under 1 ha | 86 ha |
| 2019 | 23 ha | 8 ha | 31 ha |
| 2020 | 38 ha | 3 ha | 40 ha |
| 2021 | 29 ha | under 1 ha | 30 ha |
| 2022 | 13 ha | under 1 ha | 13 ha |
| 2023 | 13 ha | under 1 ha | 13 ha |
| 2024 | 27 ha | under 1 ha | 27 ha |
| 2025 | 15 ha | 2 ha | 17 ha |
What is causing deforestation around Mauá?
- Towns and roadscleared for good83% · 752 ha
- Farms, pasture and plantationscleared for good9.4% · 85 ha
- Mining and energycleared for good3.4% · 31 ha
Also: logging, 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
- 11,700 ha
- Forest in 2020
- 11,300 ha
- Overall change
- −343 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mauá shrank from about 11,700 hectares to 11,300 hectares, a net loss of about 343 hectares (−2.9%). New forest grew on about 296 hectares, but 639 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 Mauá
Same 2 km radius, same index — so they compare directly.
- São Paulo22.3 km
Brazil
- Tree cover
- 11%
- Air quality
- 53
- Itaquaquecetuba23.3 km
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- Tree cover
- 17%
- Air quality
- 20
- Guarulhos23.9 km
Brazil
- Tree cover
- 12%
- Air quality
- 13
- Cubatão25.5 km
Brazil
- Tree cover
- 58%
- Air quality
- 18
- Mogi das Cruzes32.2 km
Brazil
- Tree cover
- 17%
- Air quality
- 20
- Taboão da Serra34.0 km
Brazil
- Tree cover
- 18%
- Air quality
- 51
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Frequently asked
Questions about Mauá
What is the air quality (AQI) in Mauá right now?
The latest reading for Mauá shows an AQI of 51 (Moderate), measured Nov 11, 11:00 local time by 4 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Mauá, São Paulo, Brazil, 500 m away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Mauá today?
At AQI 51 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Mauá been like this week?
Over the last 7 days, the CAMS air-quality model put Mauá's daily AQI at 60 on average, from 39 on Nov 8 to an hourly peak of 113 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Mauá lost since 2001?
Since 2001, the area within 10 km of Mauá has lost about 901 hectares of forest (about 1,300 football pitches): 8.9% of the forest it had in 2000. Most of it (96%) was deforestation, forest cleared for good, mainly for towns and roads. Forest loss is slowing down: about 20 hectares a year in 2021–2025, down from 56 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Mauá shrank from about 11,700 hectares to 11,300 hectares, a net loss of about 343 hectares (−2.9%). New forest grew on about 296 hectares, but 639 hectares were lost.
What is the tree count in Mauá?
Mauá has an estimated 69,429 trees across the 12.57 km² measured — 22.1% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Mauá need?
Mauá needs roughly 24,819 more trees to close a 8-point shortfall against its 30% tree-cover target — about 546.0 t of extra CO₂ absorbed per year once grown.
How are Mauá's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Centro, 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; the tree count is an estimate derived from that cover.
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