City report · Uruguay
Salto Air quality today
Air quality in Salto currently reads AQI 36 (Good): Air quality is satisfactory for everyone.
AQI 36
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.3
- tree cover
- 35.5%
- trees in this area
- 108K
- more trees needed
- 0
Measured across a 2 km radius around Centro, 50000 Salto, Departamento de Salto, Uruguay (12.57 km²), from a satellite image of Mar 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Salto · AQI 36 (Good)
Salto's tree count comes to 107,512 trees across 12.12 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Salto today: AQI 36, Good
Main pollutant: PM2.5 · Observed Nov 10, 16:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.3
PM10
7.5
NO₂
0.9
O₃
90.0
SO₂
0.5
CO
154.0
- 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 Salto's daily AQI at 21 on average, from 13 on Nov 5 to an hourly peak of 48 on Nov 8.
Where Salto stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Salto: Healthy tree cover
35.5% tree cover against a 30% healthy-neighborhood target, across 12.12 km² of land.
Trees in this area
107,512
Target trees
107,512
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Salto lost?
Since 2001, the area within 10 km of Salto has lost about 882 hectares of forest (about 1,200 football pitches): 12% of the forest it had in 2000. Most of it (55%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2018: satellite photo from March 2018 of a 5 × 5 km area about 7 km north of the city center.
- Forest lost since 2001
- 882 haabout 1,200 football pitches
- Share of its forest
- 12%of what there was in 2000
- Cleared for good
- 488 hadeforestation: turned into farms, mines or towns
The worst year was 2013, when about 124 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 | 14 ha | under 1 ha | 15 ha |
| 2002 | 9 ha | 39 ha | 48 ha |
| 2003 | 14 ha | 25 ha | 39 ha |
| 2004 | 18 ha | 26 ha | 44 ha |
| 2005 | 34 ha | 20 ha | 53 ha |
| 2006 | 32 ha | 25 ha | 57 ha |
| 2007 | 35 ha | 5 ha | 40 ha |
| 2008 | 33 ha | 20 ha | 53 ha |
| 2009 | 32 ha | 7 ha | 39 ha |
| 2010 | 15 ha | 5 ha | 20 ha |
| 2011 | 35 ha | 33 ha | 68 ha |
| 2012 | 22 ha | 22 ha | 43 ha |
| 2013 | 71 ha | 54 ha | 124 ha |
| 2014 | 9 ha | 6 ha | 15 ha |
| 2015 | 15 ha | 2 ha | 17 ha |
| 2016 | 29 ha | 6 ha | 34 ha |
| 2017 | 21 ha | 9 ha | 31 ha |
| 2018 | 10 ha | 11 ha | 21 ha |
| 2019 | 7 ha | 4 ha | 11 ha |
| 2020 | 2 ha | 9 ha | 11 ha |
| 2021 | 3 ha | 19 ha | 22 ha |
| 2022 | 7 ha | 17 ha | 24 ha |
| 2023 | 10 ha | 14 ha | 24 ha |
| 2024 | 8 ha | 17 ha | 25 ha |
| 2025 | 4 ha | 2 ha | 6 ha |
What is causing deforestation around Salto?
- Farms, pasture and plantationscleared for good51% · 448 ha
- Loggingcan grow back42% · 374 ha
- Towns and roadscleared for good4.5% · 40 ha
Also: 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
- 2,110 ha
- Forest in 2020
- 1,620 ha
- Overall change
- −488 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Salto shrank from about 2,110 hectares to 1,620 hectares, a net loss of about 488 hectares (−23%). New forest grew on about 178 hectares, but 666 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 Salto
Same 2 km radius, same index — so they compare directly.
- Uruguaiana199.9 km
Brazil
- Tree cover
- 32%
- Air quality
- 37
- Paraná246.4 km
Argentina
- Tree cover
- 23%
- Air quality
- 24
- Santa Fe262.2 km
Argentina
- Tree cover
- 19%
- Air quality
- 30
- San Nicolás de los Arroyos302.5 km
Argentina
- Tree cover
- 36%
- Air quality
- 6
Also compared:Salto vs MontevideoSalto vs Maldonado
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Frequently asked
Questions about Salto
What is the air quality (AQI) in Salto right now?
The latest reading for Salto shows an AQI of 36 (Good), observed Nov 10, 16:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Salto today?
At AQI 36 (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 Salto been like this week?
Over the last 7 days, the CAMS air-quality model put Salto's daily AQI at 21 on average, from 13 on Nov 5 to an hourly peak of 48 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Salto lost since 2001?
Since 2001, the area within 10 km of Salto has lost about 882 hectares of forest (about 1,200 football pitches): 12% of the forest it had in 2000. Most of it (55%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Salto shrank from about 2,110 hectares to 1,620 hectares, a net loss of about 488 hectares (−23%). New forest grew on about 178 hectares, but 666 hectares were lost.
What is the tree count in Salto?
Salto has an estimated 107,512 trees across the 12.12 km² of land measured — 35.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Salto need?
Salto has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Salto'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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