City report · Texas, United States
Lewisville Air quality today
Air quality in Lewisville currently reads AQI 67 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 67
Moderate
- PM2.5, fine particles (µg/m³)
- 17.8
- tree cover
- 25.0%
- trees in this area
- 78.1K
- more trees needed
- 15.6K
Measured across a 1.2 mi (2 km) radius around Lewisville, 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.
Lewisville · AQI 67 (Moderate)
Lewisville's tree count comes to 78,147 trees across 4.8 sq mi (12.51 km²) of land, 5 points below the 30% tree-cover level considered healthy for this area, so roughly 15,629 more trees would close the gap.
Air quality detail
Air quality in Lewisville today: AQI 67, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · North Irving TX, 8.5 mi (13.7 km) away · median of 10 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.8
PM10
—
NO₂
—
O₃
5.9
SO₂
—
CO
—
Data: OpenAQ · AirGradient, AirNow, AK, thol, Raul
- 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 Lewisville's daily AQI at 48 on average, from 21 on Nov 6 to an hourly peak of 104 on Nov 9.
Where Lewisville stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Lewisville: Below target
25.0% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.51 km²) of land.
Trees in this area
78,147
Target trees
93,776
More trees needed
15,629
CO₂ if planted / yr
343.8 t
Deforestation · 2001–2025
How much forest has Lewisville lost?
Since 2001, the area within 10 km of Lewisville has lost about 834 acres (338 hectares) of forest (about 630 football fields): 11% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for towns and roads.
2018: satellite photo from August 2018 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 834 acres (338 ha)about 630 football fields
- Share of its forest
- 11%of what there was in 2000
- Cleared for good
- 790 acres (320 ha)deforestation: turned into farms, mines or towns
The worst year was 2004, when about 63 acres (25 hectares) of forest were lost.
Acres of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 35 acres (14 ha) | 6 acres (2 ha) | 41 acres (17 ha) |
| 2002 | 43 acres (17 ha) | under 1 ha | 44 acres (18 ha) |
| 2003 | 51 acres (21 ha) | under 1 ha | 53 acres (21 ha) |
| 2004 | 59 acres (24 ha) | 3 acres (1 ha) | 63 acres (25 ha) |
| 2005 | 45 acres (18 ha) | under 1 ha | 46 acres (19 ha) |
| 2006 | 56 acres (23 ha) | 5 acres (2 ha) | 62 acres (25 ha) |
| 2007 | 36 acres (14 ha) | under 1 ha | 36 acres (15 ha) |
| 2008 | 24 acres (10 ha) | under 1 ha | 26 acres (10 ha) |
| 2009 | 23 acres (9 ha) | 3 acres (1 ha) | 26 acres (10 ha) |
| 2010 | 9 acres (4 ha) | under 1 ha | 10 acres (4 ha) |
| 2011 | 10 acres (4 ha) | under 1 ha | 11 acres (4 ha) |
| 2012 | 13 acres (5 ha) | under 1 ha | 14 acres (6 ha) |
| 2013 | 47 acres (19 ha) | under 1 ha | 48 acres (19 ha) |
| 2014 | 56 acres (23 ha) | under 1 ha | 57 acres (23 ha) |
| 2015 | 59 acres (24 ha) | under 1 ha | 59 acres (24 ha) |
| 2016 | 43 acres (17 ha) | under 1 ha | 44 acres (18 ha) |
| 2017 | 47 acres (19 ha) | under 1 ha | 47 acres (19 ha) |
| 2018 | 14 acres (6 ha) | under 1 ha | 14 acres (6 ha) |
| 2019 | 22 acres (9 ha) | under 1 ha | 22 acres (9 ha) |
| 2020 | 15 acres (6 ha) | under 1 ha | 15 acres (6 ha) |
| 2021 | 25 acres (10 ha) | under 1 ha | 25 acres (10 ha) |
| 2022 | 3 acres (1 ha) | under 1 ha | 3 acres (1 ha) |
| 2023 | 18 acres (7 ha) | under 1 ha | 18 acres (7 ha) |
| 2024 | 18 acres (7 ha) | under 1 ha | 19 acres (8 ha) |
| 2025 | 21 acres (8 ha) | 13 acres (5 ha) | 34 acres (14 ha) |
What is causing deforestation around Lewisville?
- Towns and roadscleared for good93% · 773 acres (313 ha)
- Farms, pasture and plantationscleared for good1.7% · 14 acres (6 ha)
- Unknown causescause unknown4.6% · 38 acres (15 ha)
Also: storms, floods and other natural causes, mining and energy.
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
- 10,300 acres (4,150 ha)
- Forest in 2020
- 11,200 acres (4,510 ha)
- Overall change
- +890 acres (360 ha)more forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Lewisville grew from about 10,300 acres (4,150 hectares) to 11,200 acres (4,510 hectares), a net gain of about 890 acres (360 hectares) (+8.7%). New forest grew on about 1,440 acres (584 hectares), while 556 acres (225 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 Lewisville
Same 2 km radius, same index — so they compare directly.
- Carrollton14.1 km
United States
- Tree cover
- 23%
- Air quality
- 74
- Frisco19.7 km
United States
- Tree cover
- 18%
- Air quality
- 57
- Denton22.8 km
United States
- Tree cover
- 28%
- Air quality
- 40
- Irving26.2 km
United States
- Tree cover
- 34%
- Air quality
- 57
- Richardson27.0 km
United States
- Tree cover
- 27%
- Air quality
- 57
- Plano27.7 km
United States
- Tree cover
- 14%
- Air quality
- 42
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Frequently asked
Questions about Lewisville
What is the air quality (AQI) in Lewisville right now?
The latest reading for Lewisville shows an AQI of 67 (Moderate), measured Nov 11, 09:00 local time by 10 ground monitoring stations via OpenAQ (the median of their readings; the nearest is North Irving TX, 8.5 mi (13.7 km) away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Lewisville today?
At AQI 67 (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 Lewisville been like this week?
Over the last 7 days, the CAMS air-quality model put Lewisville's daily AQI at 48 on average, from 21 on Nov 6 to an hourly peak of 104 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Lewisville lost since 2001?
Since 2001, the area within 10 km of Lewisville has lost about 834 acres (338 hectares) of forest (about 630 football fields): 11% of the forest it had in 2000. Most of it (95%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Lewisville grew from about 10,300 acres (4,150 hectares) to 11,200 acres (4,510 hectares), a net gain of about 890 acres (360 hectares) (+8.7%). New forest grew on about 1,440 acres (584 hectares), while 556 acres (225 hectares) were lost.
What is the tree count in Lewisville?
Lewisville has an estimated 78,147 trees across the 4.8 sq mi (12.51 km²) of land measured — 25.0% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Lewisville need?
Lewisville needs roughly 15,629 more trees to close a 5-point shortfall against its 30% tree-cover target — about 343.8 t of extra CO₂ absorbed per year once grown.
How are Lewisville's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Lewisville, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Lewisville; the tree count is an estimate derived from that cover.
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