City report · Santa Fe, Argentina
Rosario Air quality today
Air quality in Rosario currently reads AQI 27 (Good): Air quality is satisfactory for everyone.
AQI 27
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 4.9
- tree cover
- 18.2%
- trees in this area
- 44.6K
- more trees needed
- 28.9K
Measured across a 2 km radius around Centro, S2000 Rosario, Santa Fe, Argentina (12.57 km²), from a satellite image of Mar 11, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Rosario · AQI 27 (Good)
Rosario's tree count comes to 44,598 trees across 9.8 km² of land, 12 points below the 30% tree-cover level considered healthy for this area, so roughly 28,915 more trees would close the gap.
Air quality detail
Air quality in Rosario today: AQI 27, Good
Main pollutant: PM2.5 · Observed Nov 10, 15:00 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
4.9
PM10
6.3
NO₂
1.9
O₃
85.0
SO₂
1.1
CO
106.0
- 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 Rosario's daily AQI at 35 on average, from 20 on Nov 10 to an hourly peak of 73 on Nov 8.
Where Rosario stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Rosario: Below target
18.2% tree cover against a 30% healthy-neighborhood target, across 9.8 km² of land.
Trees in this area
44,598
Target trees
73,513
More trees needed
28,915
CO₂ if planted / yr
636.1 t
Deforestation · 2001–2025
How much forest has Rosario lost?
Since 2001, the area within 10 km of Rosario has lost about 10 hectares of forest (about 14 football pitches): 1.3% of the forest it had in 2000. The biggest cause was storms, floods and other natural causes (44%), after which forest can grow back. About 2 hectares (19%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 10 haabout 14 football pitches
- Share of its forest
- 1.3%of what there was in 2000
- Cleared for good
- 2 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 3 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 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | under 1 ha | under 1 ha | 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | 3 ha | 3 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | 1 ha | under 1 ha | 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Rosario?
- Storms, floods and other natural causescan grow back44% · 5 ha
- Towns and roadscleared for good19% · 2 ha
- Wildfirescan grow back11% · 1 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
- 199 ha
- Forest in 2020
- 262 ha
- Overall change
- +63 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Rosario grew from about 199 hectares to 262 hectares, a net gain of about 63 hectares (+32%). New forest grew on about 83 hectares, while 20 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 Rosario
Same 2 km radius, same index — so they compare directly.
- San Nicolás de los Arroyos58.7 km
Argentina
- Tree cover
- 36%
- Air quality
- 6
- Paraná135.4 km
Argentina
- Tree cover
- 23%
- Air quality
- 24
- Santa Fe144.5 km
Argentina
- Tree cover
- 19%
- Air quality
- 30
- José C. Paz245.7 km
Argentina
- Tree cover
- 21%
- Air quality
- 7
- Paysandú249.6 km
Uruguay
- Tree cover
- 15%
- Air quality
- 16
- Merlo260.2 km
Argentina
- Tree cover
- 25%
- Air quality
- 8
Also compared:Rosario vs Buenos AiresRosario vs CórdobaRosario vs Mar del PlataRosario vs San Miguel de Tucumán
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Frequently asked
Questions about Rosario
What is the air quality (AQI) in Rosario right now?
The latest reading for Rosario shows an AQI of 27 (Good), observed Nov 10, 15:00 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 Rosario today?
At AQI 27 (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 Rosario been like this week?
Over the last 7 days, the CAMS air-quality model put Rosario's daily AQI at 35 on average, from 20 on Nov 10 to an hourly peak of 73 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 Rosario lost since 2001?
Since 2001, the area within 10 km of Rosario has lost about 10 hectares of forest (about 14 football pitches): 1.3% of the forest it had in 2000. The biggest cause was storms, floods and other natural causes (44%), after which forest can grow back. About 2 hectares (19%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Rosario grew from about 199 hectares to 262 hectares, a net gain of about 63 hectares (+32%). New forest grew on about 83 hectares, while 20 hectares were lost.
What is the tree count in Rosario?
Rosario has an estimated 44,598 trees across the 9.8 km² of land measured — 18.2% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Rosario need?
Rosario needs roughly 28,915 more trees to close a 12-point shortfall against its 30% tree-cover target — about 636.1 t of extra CO₂ absorbed per year once grown.
How are Rosario'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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