City report · São Paulo, Brazil
Piracicaba Air quality today
Air quality in Piracicaba currently reads AQI 79 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 79
Moderate
- PM2.5, fine particles (µg/m³)
- 24.0
- tree cover
- 16.4%
- trees in this area
- 51.3K
- more trees needed
- 42.6K
Measured across a 2 km radius around Centro, Piracicaba - SP, Brazil (12.57 km²), from a satellite image of Nov 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Piracicaba · AQI 79 (Moderate)
Piracicaba's tree count comes to 51,316 trees across 12.52 km² of land, 14 points below the 30% tree-cover level considered healthy for this area, so roughly 42,555 more trees would close the gap.
Air quality detail
Air quality in Piracicaba today: AQI 79, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 45 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 45 km, e.g. Santa Bárbara d'Oeste and Limeira
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
24.0
PM10
39.5
NO₂
37.9
O₃
7.0
SO₂
6.9
CO
546.0
- 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 Piracicaba's daily AQI at 103 on average, from 55 on Nov 9 to an hourly peak of 202 on Nov 7.
Where Piracicaba stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Piracicaba: Critically low
16.4% tree cover against a 30% healthy-neighborhood target, across 12.52 km² of land.
Trees in this area
51,316
Target trees
93,871
More trees needed
42,555
CO₂ if planted / yr
936.2 t
Deforestation · 2001–2025
How much forest has Piracicaba lost?
Since 2001, the area within 10 km of Piracicaba has lost about 164 hectares of forest (about 230 football pitches): 5.2% of the forest it had in 2000. Most of it (75%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 164 haabout 230 football pitches
- Share of its forest
- 5.2%of what there was in 2000
- Cleared for good
- 123 hadeforestation: turned into farms, mines or towns
The worst year was 2012, when about 24 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 | 11 ha | 4 ha | 15 ha |
| 2002 | 12 ha | 2 ha | 14 ha |
| 2003 | 3 ha | under 1 ha | 4 ha |
| 2004 | 3 ha | under 1 ha | 3 ha |
| 2005 | 3 ha | under 1 ha | 4 ha |
| 2006 | 4 ha | 1 ha | 6 ha |
| 2007 | 7 ha | 1 ha | 8 ha |
| 2008 | 13 ha | 2 ha | 15 ha |
| 2009 | under 1 ha | under 1 ha | 1 ha |
| 2010 | 14 ha | 3 ha | 17 ha |
| 2011 | 10 ha | 2 ha | 12 ha |
| 2012 | 13 ha | 11 ha | 24 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 2 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | under 1 ha | 1 ha |
| 2016 | 3 ha | under 1 ha | 3 ha |
| 2017 | 5 ha | 5 ha | 10 ha |
| 2018 | 1 ha | 3 ha | 4 ha |
| 2019 | under 1 ha | 1 ha | 2 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | 2 ha | 1 ha | 3 ha |
| 2022 | 6 ha | 2 ha | 8 ha |
| 2023 | 3 ha | 1 ha | 4 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | 2 ha | 1 ha | 3 ha |
What is causing deforestation around Piracicaba?
- Towns and roadscleared for good46% · 75 ha
- Farms, pasture and plantationscleared for good29% · 48 ha
- Loggingcan grow back12% · 19 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
- 3,990 ha
- Forest in 2020
- 4,290 ha
- Overall change
- +294 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Piracicaba grew from about 3,990 hectares to 4,290 hectares, a net gain of about 294 hectares (+7.4%). New forest grew on about 413 hectares, while 119 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
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Frequently asked
Questions about Piracicaba
What is the air quality (AQI) in Piracicaba right now?
The latest reading for Piracicaba shows an AQI of 79 (Moderate), observed Nov 11, 02:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 45 km, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Piracicaba today?
At AQI 79 (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 Piracicaba been like this week?
Over the last 7 days, the CAMS air-quality model put Piracicaba's daily AQI at 103 on average, from 55 on Nov 9 to an hourly peak of 202 on Nov 7. On 4 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Piracicaba lost since 2001?
Since 2001, the area within 10 km of Piracicaba has lost about 164 hectares of forest (about 230 football pitches): 5.2% of the forest it had in 2000. Most of it (75%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Piracicaba grew from about 3,990 hectares to 4,290 hectares, a net gain of about 294 hectares (+7.4%). New forest grew on about 413 hectares, while 119 hectares were lost.
What is the tree count in Piracicaba?
Piracicaba has an estimated 51,316 trees across the 12.52 km² of land measured — 16.4% tree cover, 14 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Piracicaba need?
Piracicaba needs roughly 42,555 more trees to close a 14-point shortfall against its 30% tree-cover target — about 936.2 t of extra CO₂ absorbed per year once grown.
How are Piracicaba'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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