City report · Arizona, United States
Deer Valley Air quality today
Air quality in Deer Valley currently reads AQI 54 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 54
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 10.6
- tree cover
- 2.1%
- trees in this area
- 6.6K
- more trees needed
- 87.7K
Measured across a 1.2 mi (2 km) radius around Deer Valley, Phoenix, AZ, USA (4.9 sq mi), from a satellite image of Sep 13, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Deer Valley · AQI 54 (Moderate)
Deer Valley's tree count comes to 6,597 trees across 4.9 sq mi (12.57 km²), 28 points below the 30% tree-cover level considered healthy for this area, so roughly 87,650 more trees would close the gap.
Air quality detail
Air quality in Deer Valley today: AQI 54, 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 Phoenix, 9.4 mi (15.1 km) away · median of 8 stations
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.6
PM10
34.0
NO₂
39.5
O₃
15.7
SO₂
1.8
CO
229.1
Data: OpenAQ · AirNow
- 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 Deer Valley's daily AQI at 55 on average, from 44 on Nov 7 to an hourly peak of 97 on Nov 4.
Where Deer Valley stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Deer Valley: Critically low
2.1% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).
Trees in this area
6,597
Target trees
94,247
More trees needed
87,650
CO₂ if planted / yr
1,928 t
Deforestation · 2001–2025
How much forest has Deer Valley lost?
There was almost no forest around Deer Valley in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
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. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Deer Valley
Same 2 km radius, same index — so they compare directly.
- Glendale16.8 km
United States
- Tree cover
- 5%
- Air quality
- 57
- Surprise19.3 km
United States
- Tree cover
- 2%
- Air quality
- 54
- Phoenix26.8 km
United States
- Tree cover
- 3%
- Air quality
- 57
- Scottsdale29.2 km
United States
- Tree cover
- 8%
- Air quality
- 52
- Tempe36.5 km
United States
- Tree cover
- 4%
- Air quality
- 23
- Mesa41.0 km
United States
- Tree cover
- 10%
- Air quality
- 23
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Frequently asked
Questions about Deer Valley
What is the air quality (AQI) in Deer Valley right now?
The latest reading for Deer Valley shows an AQI of 54 (Moderate), measured Nov 11, 09:00 local time by 8 ground monitoring stations via OpenAQ (the median of their readings; the nearest is North Phoenix, 9.4 mi (15.1 km) away). The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Deer Valley today?
At AQI 54 (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 Deer Valley been like this week?
Over the last 7 days, the CAMS air-quality model put Deer Valley's daily AQI at 55 on average, from 44 on Nov 7 to an hourly peak of 97 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Deer Valley lost since 2001?
There was almost no forest around Deer Valley in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Deer Valley?
Deer Valley has an estimated 6,597 trees across the 4.9 sq mi (12.57 km²) measured — 2.1% tree cover, 28 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Deer Valley need?
Deer Valley needs roughly 87,650 more trees to close a 28-point shortfall against its 30% tree-cover target — about 1,928 t of extra CO₂ absorbed per year once grown.
How are Deer Valley's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Deer Valley, 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 Deer Valley; the tree count is an estimate derived from that cover.
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