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City report · Colorado, United States

Arvada Air quality today

Air quality in Arvada currently reads AQI 32 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 32

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
5.8
tree cover
20.6%
trees in this area
64.6K
more trees needed
29.5K

Measured across a 1.2 mi (2 km) radius around Arvada, CO, USA (4.9 sq mi), from a satellite image of Sep 9, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Arvada · AQI 32 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 9, 2026

Arvada's tree count comes to 64,587 trees across 4.8 sq mi (12.54 km²) of land, 9 points below the 30% tree-cover level considered healthy for this area, so roughly 29,472 more trees would close the gap.

Air quality detail

Air quality in Arvada today: AQI 32, Good

Main pollutant: PM2.5 · Observed Nov 11, 08:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · La Casa NCORE - 4545, 4.7 mi (7.5 km) away · median of 2 stations

Health signal

Air quality is satisfactory for everyone.

PM2.5

5.8

PM10

—

NO₂

60.8

O₃

11.8

SO₂

3.4

CO

973.8

Data: OpenAQ · AirNow

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 Arvada's daily AQI at 45 on average, from 32 on Nov 7 to an hourly peak of 59 on Nov 5.

Last 7 days · model estimateavg 45 · peak 59
Nov 5: AQI 48 (peak 59)Nov 6: AQI 47 (peak 59)Nov 7: AQI 32 (peak 52)Nov 8: AQI 40 (peak 53)Nov 9: AQI 47 (peak 58)Nov 10: AQI 52 (peak 57)Nov 11: AQI 47 (peak 49)
Nov 5Nov 11

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

Tree cover detail

Tree cover in Arvada: Below target

20.6% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.54 km²) of land.

9 points below target

Trees in this area

64,587

Target trees

94,059

More trees needed

29,472

CO₂ if planted / yr

648.4 t

Deforestation · 2001–2025

How much forest has Arvada lost?

There was very little forest around Arvada in 2000, about 178 acres (72 hectares), and about 13 acres (5 hectares) of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.

Satellite image of the area around Arvada, June 2017

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

The worst year was 2005, when about 6 acres (3 hectares) of forest were lost.

Forest lost each year around Arvada, 2001–2025

Acres of forest lost each year

Forest lost each year around Arvada, 2001–2025. Use the left and right arrow keys to read each year.6.42

Show the figures as a table
Forest lost each year around Arvada, 2001–2025
YearCleared for goodCan grow backTotal
2001under 1 haunder 1 haunder 1 ha
2002under 1 haunder 1 haunder 1 ha
2003under 1 haunder 1 haunder 1 ha
2004under 1 haunder 1 haunder 1 ha
20056 acres (2 ha)under 1 ha6 acres (3 ha)
2006under 1 haunder 1 haunder 1 ha
2007under 1 haunder 1 haunder 1 ha
2008under 1 haunder 1 haunder 1 ha
2009under 1 haunder 1 haunder 1 ha
2010under 1 haunder 1 haunder 1 ha
2011under 1 haunder 1 haunder 1 ha
2012under 1 haunder 1 haunder 1 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 Arvada?

  • Towns and roadscleared for good58% · 8 acres (3 ha)
  • Unknown causescause unknown38% · 5 acres (2 ha)

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
6,580 acres (2,660 ha)
Forest in 2020
7,800 acres (3,160 ha)
Overall change
+1,220 acres (494 ha)more forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Arvada grew from about 6,580 acres (2,660 hectares) to 7,800 acres (3,160 hectares), a net gain of about 1,220 acres (494 hectares) (+19%). New forest grew on about 1,250 acres (504 hectares), while 25 acres (10 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 Arvada

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

  • Thornton

    United States

    12.2 km
    Tree cover
    10%
    Air quality
    132
  • Aurora

    United States

    23.3 km
    Tree cover
    14%
    Air quality
    23
  • Boulder

    United States

    28.3 km
    Tree cover
    38%
    Air quality
    14
  • Centennial

    United States

    30.7 km
    Tree cover
    19%
    Air quality
    34
  • Greeley

    United States

    76.1 km
    Tree cover
    23%
    Air quality
    25
  • Fort Collins

    United States

    87.0 km
    Tree cover
    38%
    Air quality
    37

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

Questions about Arvada

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

The latest reading for Arvada shows an AQI of 32 (Good), measured Nov 11, 08:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is La Casa NCORE - 4545, 4.7 mi (7.5 km) away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Arvada today?

At AQI 32 (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 Arvada been like this week?

Over the last 7 days, the CAMS air-quality model put Arvada's daily AQI at 45 on average, from 32 on Nov 7 to an hourly peak of 59 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Arvada lost since 2001?

There was very little forest around Arvada in 2000, about 178 acres (72 hectares), and about 13 acres (5 hectares) of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Arvada grew from about 6,580 acres (2,660 hectares) to 7,800 acres (3,160 hectares), a net gain of about 1,220 acres (494 hectares) (+19%). New forest grew on about 1,250 acres (504 hectares), while 25 acres (10 hectares) were lost.

What is the tree count in Arvada?

Arvada has an estimated 64,587 trees across the 4.8 sq mi (12.54 km²) of land measured — 20.6% tree cover, 9 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Arvada need?

Arvada needs roughly 29,472 more trees to close a 9-point shortfall against its 30% tree-cover target — about 648.4 t of extra CO₂ absorbed per year once grown.

How are Arvada's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Arvada, 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 Arvada; the tree count is an estimate derived from that cover.

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