City report · Pará, Brazil
Santarém Air quality today
Air quality in Santarém currently reads AQI 72 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 72
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 20.3
- tree cover
- 11.1%
- trees in this area
- 34.9K
- more trees needed
- 59.4K
Measured across a 2 km radius around Interventória, Santarém - PA, 68020-590, Brazil (12.57 km²), from a satellite image of Nov 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Santarém · AQI 72 (Moderate)
Santarém's tree count comes to 34,872 trees across 12.57 km², 19 points below the 30% tree-cover level considered healthy for this area, so roughly 59,376 more trees would close the gap.
Air quality detail
Air quality in Santarém today: AQI 72, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 02:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
20.3
PM10
21.0
NO₂
2.6
O₃
56.0
SO₂
0.8
CO
203.0
- 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 Santarém's daily AQI at 70 on average, from 63 on Nov 5 to an hourly peak of 90 on Nov 10.
Where Santarém stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Santarém: Critically low
11.1% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
34,872
Target trees
94,248
More trees needed
59,376
CO₂ if planted / yr
1,306 t
Deforestation · 2001–2025
How much forest has Santarém lost?
Since 2001, the area within 10 km of Santarém has lost about 2,640 hectares of forest (about 3,700 football pitches): 25% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 2,640 haabout 3,700 football pitches
- Share of its forest
- 25%of what there was in 2000
- Cleared for good
- 2,510 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 91 hectares a year in 2021–2025, down from 146 hectares a year in 2016–2020. The worst year was 2012, when about 380 hectares of forest were lost.
Santarém's full deforestation reportHectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 75 ha | 2 ha | 77 ha |
| 2002 | 64 ha | 3 ha | 66 ha |
| 2003 | 46 ha | under 1 ha | 47 ha |
| 2004 | 107 ha | 1 ha | 108 ha |
| 2005 | 61 ha | under 1 ha | 61 ha |
| 2006 | 20 ha | under 1 ha | 20 ha |
| 2007 | 92 ha | 2 ha | 94 ha |
| 2008 | 89 ha | 2 ha | 91 ha |
| 2009 | 119 ha | 5 ha | 124 ha |
| 2010 | 55 ha | 2 ha | 56 ha |
| 2011 | 93 ha | 2 ha | 94 ha |
| 2012 | 376 ha | 4 ha | 380 ha |
| 2013 | 79 ha | 5 ha | 84 ha |
| 2014 | 79 ha | 4 ha | 83 ha |
| 2015 | 64 ha | 2 ha | 65 ha |
| 2016 | 239 ha | 27 ha | 266 ha |
| 2017 | 164 ha | 7 ha | 171 ha |
| 2018 | 91 ha | under 1 ha | 92 ha |
| 2019 | 116 ha | 4 ha | 120 ha |
| 2020 | 81 ha | 1 ha | 82 ha |
| 2021 | 37 ha | 3 ha | 40 ha |
| 2022 | 105 ha | 9 ha | 114 ha |
| 2023 | 115 ha | 2 ha | 117 ha |
| 2024 | 81 ha | 13 ha | 94 ha |
| 2025 | 60 ha | 31 ha | 91 ha |
What is causing deforestation around Santarém?
- Farms, pasture and plantationscleared for good46% · 1,220 ha
- Towns and roadscleared for good41% · 1,090 ha
- Mining and energycleared for good7.3% · 193 ha
Also: storms, floods and other natural causes, 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
- 8,310 ha
- Forest in 2020
- 7,670 ha
- Overall change
- −640 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Santarém shrank from about 8,310 hectares to 7,670 hectares, a net loss of about 640 hectares (−7.7%). New forest grew on about 513 hectares, but 1,150 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 Santarém
What is the air quality (AQI) in Santarém right now?
The latest reading for Santarém shows an AQI of 72 (Moderate), observed Nov 11, 02:00 local time via Open-Meteo / CAMS, 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 Santarém today?
At AQI 72 (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 Santarém been like this week?
Over the last 7 days, the CAMS air-quality model put Santarém's daily AQI at 70 on average, from 63 on Nov 5 to an hourly peak of 90 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Santarém lost since 2001?
Since 2001, the area within 10 km of Santarém has lost about 2,640 hectares of forest (about 3,700 football pitches): 25% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 91 hectares a year in 2021–2025, down from 146 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Santarém shrank from about 8,310 hectares to 7,670 hectares, a net loss of about 640 hectares (−7.7%). New forest grew on about 513 hectares, but 1,150 hectares were lost.
What is the tree count in Santarém?
Santarém has an estimated 34,872 trees across the 12.57 km² measured — 11.1% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Santarém need?
Santarém needs roughly 59,376 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,306 t of extra CO₂ absorbed per year once grown.
How are Santarém'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 Interventória; the tree count is an estimate derived from that cover.
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