City report · São Paulo, Brazil
Osasco Air quality today
Air quality in Osasco currently reads AQI 42 (Good): Air quality is satisfactory for everyone.
AQI 42
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 7.5
- tree cover
- 13.0%
- trees in this area
- 40.8K
- more trees needed
- 53.4K
Measured across a 2 km radius around Km 18, Osasco - 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.
Osasco · AQI 42 (Good)
Osasco's tree count comes to 40,841 trees across 12.57 km², 17 points below the 30% tree-cover level considered healthy for this area, so roughly 53,407 more trees would close the gap.
Air quality detail
Air quality in Osasco today: AQI 42, Good
Main pollutant: PM2.5 · Observed Nov 11, 12:00 local time via World Air Quality Index Project ground stations, US EPA index. Values in µg/m³.
Ground station · Osasco, São Paulo, Brazil, 600 m away · median of 6 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.5
PM10
20.5
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 Osasco's daily AQI at 67 on average, from 30 on Nov 8 to an hourly peak of 158 on Nov 4.
Where Osasco stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Osasco: Critically low
13.0% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
40,841
Target trees
94,248
More trees needed
53,407
CO₂ if planted / yr
1,175 t
Deforestation · 2001–2025
How much forest has Osasco lost?
Since 2001, the area within 10 km of Osasco has lost about 875 hectares of forest (about 1,200 football pitches): 16% of the forest it had in 2000. Most of it (82%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 875 haabout 1,200 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 717 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 82 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 | 41 ha | 7 ha | 48 ha |
| 2002 | 37 ha | 2 ha | 39 ha |
| 2003 | 25 ha | 3 ha | 27 ha |
| 2004 | 54 ha | 5 ha | 59 ha |
| 2005 | 48 ha | 17 ha | 65 ha |
| 2006 | 62 ha | 2 ha | 63 ha |
| 2007 | 74 ha | 9 ha | 82 ha |
| 2008 | 9 ha | 9 ha | 18 ha |
| 2009 | 70 ha | 7 ha | 77 ha |
| 2010 | 16 ha | under 1 ha | 16 ha |
| 2011 | 24 ha | under 1 ha | 24 ha |
| 2012 | 17 ha | 4 ha | 21 ha |
| 2013 | 14 ha | 2 ha | 15 ha |
| 2014 | 23 ha | 6 ha | 28 ha |
| 2015 | 22 ha | under 1 ha | 23 ha |
| 2016 | 12 ha | 10 ha | 22 ha |
| 2017 | 21 ha | 3 ha | 24 ha |
| 2018 | 7 ha | 9 ha | 16 ha |
| 2019 | 22 ha | 8 ha | 30 ha |
| 2020 | 7 ha | 5 ha | 13 ha |
| 2021 | 19 ha | 7 ha | 25 ha |
| 2022 | 11 ha | under 1 ha | 11 ha |
| 2023 | 52 ha | 11 ha | 63 ha |
| 2024 | 24 ha | 31 ha | 55 ha |
| 2025 | 10 ha | 1 ha | 11 ha |
What is causing deforestation around Osasco?
- Towns and roadscleared for good70% · 615 ha
- Loggingcan grow back17% · 151 ha
- Farms, pasture and plantationscleared for good11% · 96 ha
Also: mining and energy, 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
- 7,640 ha
- Forest in 2020
- 7,960 ha
- Overall change
- +322 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Osasco grew from about 7,640 hectares to 7,960 hectares, a net gain of about 322 hectares (+4.2%). New forest grew on about 787 hectares, while 465 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 Osasco
Same 2 km radius, same index — so they compare directly.
- Cotia15.2 km
Brazil
- Tree cover
- 44%
- Air quality
- 46
- São Paulo15.9 km
Brazil
- Tree cover
- 11%
- Air quality
- 59
- Santana de Parnaíba16.2 km
Brazil
- Tree cover
- 50%
- Air quality
- 51
- Caieiras19.4 km
Brazil
- Tree cover
- 68%
- Air quality
- 51
- Itapecerica da Serra21.3 km
Brazil
- Tree cover
- 62%
- Air quality
- 40
- São Caetano do Sul26.5 km
Brazil
- Tree cover
- 12%
- Air quality
- 46
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Frequently asked
Questions about Osasco
What is the air quality (AQI) in Osasco right now?
The latest reading for Osasco shows an AQI of 42 (Good), measured Nov 11, 12:00 local time by 6 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Osasco, São Paulo, Brazil, 600 m away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Osasco 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 Osasco been like this week?
Over the last 7 days, the CAMS air-quality model put Osasco's daily AQI at 67 on average, from 30 on Nov 8 to an hourly peak of 158 on Nov 4. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Osasco lost since 2001?
Since 2001, the area within 10 km of Osasco has lost about 875 hectares of forest (about 1,200 football pitches): 16% of the forest it had in 2000. Most of it (82%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Osasco grew from about 7,640 hectares to 7,960 hectares, a net gain of about 322 hectares (+4.2%). New forest grew on about 787 hectares, while 465 hectares were lost.
What is the tree count in Osasco?
Osasco has an estimated 40,841 trees across the 12.57 km² measured — 13.0% tree cover, 17 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Osasco need?
Osasco needs roughly 53,407 more trees to close a 17-point shortfall against its 30% tree-cover target — about 1,175 t of extra CO₂ absorbed per year once grown.
How are Osasco's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Km 18, 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 Km 18; the tree count is an estimate derived from that cover.
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