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City report · Texas, United States

San Angelo Air quality today

Air quality in San Angelo currently reads AQI 11 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 11

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
2.1
tree cover
14.5%
trees in this area
45.6K
more trees needed
48.7K

Measured across a 1.2 mi (2 km) radius around San Angelo, TX, USA (4.9 sq mi), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

San Angelo · AQI 11 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 15, 2026

San Angelo's tree count comes to 45,553 trees across 4.9 sq mi (12.57 km²), 16 points below the 30% tree-cover level considered healthy for this area, so roughly 48,695 more trees would close the gap.

Air quality detail

Air quality in San Angelo today: AQI 11, Good

Main pollutant: PM2.5 · Observed Nov 10, 14:00 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

2.1

PM10

2.2

NO₂

0.4

O₃

77.0

SO₂

0.2

CO

124.0

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 San Angelo's daily AQI at 21 on average, from 10 on Nov 4 to an hourly peak of 55 on Nov 7.

Last 7 daysavg 21 · peak 55
Nov 4: AQI 10 (peak 34)Nov 5: AQI 17 (peak 36)Nov 6: AQI 13 (peak 31)Nov 7: AQI 41 (peak 55)Nov 8: AQI 41 (peak 54)Nov 9: AQI 16 (peak 36)Nov 10: AQI 11 (peak 15)
Nov 4Nov 10

Where San Angelo stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in San Angelo: Critically low

14.5% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).

16 points below target

Trees in this area

45,553

Target trees

94,248

More trees needed

48,695

CO₂ if planted / yr

1,071 t

Deforestation · 2001–2025

How much forest has San Angelo lost?

Since 2001, the area within 10 km of San Angelo has lost about 360 acres (146 hectares) of forest (about 270 football fields): 57% of the forest it had in 2000. The biggest cause was storms, floods and other natural causes (50%), after which forest can grow back. About 168 acres (68 hectares) (47%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around San Angelo, August 2017

2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.

Forest lost since 2001
360 acres (146 ha)about 270 football fields
Share of its forest
57%of what there was in 2000
Cleared for good
168 acres (68 ha)deforestation: turned into farms, mines or towns

The worst year was 2008, when about 101 acres (41 hectares) of forest were lost.

Forest lost each year around San Angelo, 2001–2025

Acres of forest lost each year

Forest lost each year around San Angelo, 2001–2025. Use the left and right arrow keys to read each year.101

Show the figures as a table
Forest lost each year around San Angelo, 2001–2025
YearCleared for goodCan grow backTotal
200122 acres (9 ha)20 acres (8 ha)42 acres (17 ha)
200235 acres (14 ha)53 acres (21 ha)88 acres (36 ha)
20038 acres (3 ha)under 1 ha10 acres (4 ha)
2004under 1 haunder 1 ha3 acres (1 ha)
20057 acres (3 ha)under 1 ha9 acres (4 ha)
2006under 1 haunder 1 haunder 1 ha
20073 acres (1 ha)under 1 ha4 acres (2 ha)
200857 acres (23 ha)44 acres (18 ha)101 acres (41 ha)
2009under 1 haunder 1 haunder 1 ha
201022 acres (9 ha)14 acres (6 ha)36 acres (15 ha)
2011under 1 haunder 1 haunder 1 ha
20126 acres (2 ha)55 acres (22 ha)61 acres (25 ha)
2013under 1 haunder 1 haunder 1 ha
2014under 1 haunder 1 haunder 1 ha
2015under 1 haunder 1 haunder 1 ha
2016under 1 haunder 1 haunder 1 ha
2017under 1 haunder 1 haunder 1 ha
2018under 1 haunder 1 haunder 1 ha
2019under 1 haunder 1 haunder 1 ha
2020under 1 haunder 1 haunder 1 ha
2021under 1 haunder 1 haunder 1 ha
2022under 1 haunder 1 haunder 1 ha
2023under 1 haunder 1 haunder 1 ha
2024under 1 haunder 1 haunder 1 ha
2025under 1 haunder 1 haunder 1 ha

What is causing deforestation around San Angelo?

  • Storms, floods and other natural causescan grow back50% · 179 acres (73 ha)
  • Farms, pasture and plantationscleared for good39% · 139 acres (56 ha)
  • Towns and roadscleared for good8% · 29 acres (12 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
425 acres (172 ha)
Forest in 2020
121 acres (49 ha)
Overall change
−304 acres (123 ha)less forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around San Angelo shrank from about 425 acres (172 hectares) to 121 acres (49 hectares), a net loss of about 304 acres (123 hectares) (−72%). New forest grew on about 12 acres (5 hectares), but 316 acres (128 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 San Angelo

Same 2 km radius, same index — so they compare directly.

  • Abilene

    United States

    128.1 km
    Tree cover
    20%
    Air quality
    25
  • Midland

    United States

    166.1 km
    Tree cover
    5%
    Air quality
    36
  • Odessa

    United States

    187.6 km
    Tree cover
    1%
    Air quality
    9
  • Ciudad Acuña

    Mexico

    243.1 km
    Tree cover
    20%
    Air quality
    11
  • Killeen

    United States

    260.3 km
    Tree cover
    26%
    Air quality
    11
  • Lubbock

    United States

    270.1 km
    Tree cover
    6%
    Air quality
    20

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San Angelo air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about San Angelo

What is the air quality (AQI) in San Angelo right now?

The latest reading for San Angelo shows an AQI of 11 (Good), observed Nov 10, 14:00 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 San Angelo today?

At AQI 11 (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 San Angelo been like this week?

Over the last 7 days, the CAMS air-quality model put San Angelo's daily AQI at 21 on average, from 10 on Nov 4 to an hourly peak of 55 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around San Angelo lost since 2001?

Since 2001, the area within 10 km of San Angelo has lost about 360 acres (146 hectares) of forest (about 270 football fields): 57% of the forest it had in 2000. The biggest cause was storms, floods and other natural causes (50%), after which forest can grow back. About 168 acres (68 hectares) (47%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around San Angelo shrank from about 425 acres (172 hectares) to 121 acres (49 hectares), a net loss of about 304 acres (123 hectares) (−72%). New forest grew on about 12 acres (5 hectares), but 316 acres (128 hectares) were lost.

What is the tree count in San Angelo?

San Angelo has an estimated 45,553 trees across the 4.9 sq mi (12.57 km²) measured — 14.5% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.

How many more trees does San Angelo need?

San Angelo needs roughly 48,695 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,071 t of extra CO₂ absorbed per year once grown.

How are San Angelo'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 1.2 mi (2 km) radius around San Angelo; the tree count is an estimate derived from that cover.

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