City report · Coahuila, Mexico
Saltillo Air quality today
Air quality in Saltillo 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)
- 21.0
- tree cover
- 4.8%
- trees in this area
- 15.1K
- more trees needed
- 79.2K
Measured across a 2 km radius around Sin Nombre de Col 9, Saltillo, Coah., Mexico (12.57 km²), from a satellite image of Sep 20, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Saltillo · AQI 72 (Moderate)
Saltillo's tree count comes to 15,080 trees across 12.57 km², 25 points below the 30% tree-cover level considered healthy for this area, so roughly 79,168 more trees would close the gap.
Air quality detail
Air quality in Saltillo today: AQI 72, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 14:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 85 km, e.g. Ciudad Santa Catarina and Monterrey
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
21.0
PM10
13.4
NO₂
2.9
O₃
99.0
SO₂
3.3
CO
276.0
- 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 Saltillo's daily AQI at 47 on average, from 32 on Nov 8 to an hourly peak of 69 on Nov 6.
Where Saltillo stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Saltillo: Critically low
4.8% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
15,080
Target trees
94,248
More trees needed
79,168
CO₂ if planted / yr
1,742 t
Deforestation · 2001–2025
How much forest has Saltillo lost?
Since 2001, the area within 10 km of Saltillo has lost about 91 hectares of forest (about 130 football pitches): 3.2% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 28 hectares (31%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 91 haabout 130 football pitches
- Share of its forest
- 3.2%of what there was in 2000
- Cleared for good
- 28 hadeforestation: turned into farms, mines or towns
The worst year was 2018, when about 34 hectares of forest were lost, mostly to wildfires.
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 | 8 ha | 3 ha | 11 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 | 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 | 1 ha | under 1 ha | 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | 2 ha | under 1 ha | 2 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 8 ha | under 1 ha | 9 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | 33 ha | 34 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 | 17 ha | 17 ha |
| 2022 | under 1 ha | 3 ha | 3 ha |
| 2023 | 1 ha | 2 ha | 3 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | 1 ha | 2 ha | 3 ha |
What is causing deforestation around Saltillo?
- Wildfirescan grow back62% · 56 ha
- Towns and roadscleared for good26% · 24 ha
- Mining and energycleared for good3.6% · 3 ha
Also: farms, pasture and plantations, 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
- 3,180 ha
- Forest in 2020
- 3,040 ha
- Overall change
- −137 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Saltillo shrank from about 3,180 hectares to 3,040 hectares, a net loss of about 137 hectares (−4.3%). New forest grew on about 14 hectares, but 151 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 Saltillo
Same 2 km radius, same index — so they compare directly.
- Santa Catarina59.1 km
Mexico
- Tree cover
- 4%
- Air quality
- 107
- Monterrey72.4 km
Mexico
- Tree cover
- 5%
- Air quality
- 122
- Ciudad General Escobedo78.1 km
Mexico
- Tree cover
- 8%
- Air quality
- 107
- Ciudad Apodaca88.6 km
Mexico
- Tree cover
- 19%
- Air quality
- 107
- Ciudad Benito Juárez92.4 km
Mexico
- Tree cover
- 20%
- Air quality
- 107
- Monclova170.4 km
Mexico
- Tree cover
- 10%
- Air quality
- 73
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Frequently asked
Questions about Saltillo
What is the air quality (AQI) in Saltillo right now?
The latest reading for Saltillo shows an AQI of 72 (Moderate), observed Nov 10, 14:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 85 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 Saltillo 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 Saltillo been like this week?
Over the last 7 days, the CAMS air-quality model put Saltillo's daily AQI at 47 on average, from 32 on Nov 8 to an hourly peak of 69 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Saltillo lost since 2001?
Since 2001, the area within 10 km of Saltillo has lost about 91 hectares of forest (about 130 football pitches): 3.2% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 28 hectares (31%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Saltillo shrank from about 3,180 hectares to 3,040 hectares, a net loss of about 137 hectares (−4.3%). New forest grew on about 14 hectares, but 151 hectares were lost.
What is the tree count in Saltillo?
Saltillo has an estimated 15,080 trees across the 12.57 km² measured — 4.8% tree cover, 25 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Saltillo need?
Saltillo needs roughly 79,168 more trees to close a 25-point shortfall against its 30% tree-cover target — about 1,742 t of extra CO₂ absorbed per year once grown.
How are Saltillo'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 Sin Nombre de Col 9; the tree count is an estimate derived from that cover.
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