City report · California, United States
Hollywood Air quality today
Air quality in Hollywood currently reads AQI 33 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 33
Good
- PM2.5, fine particles (µg/m³)
- 5.9
- tree cover
- 16.9%
- trees in this area
- 53.1K
- more trees needed
- 41.2K
Measured across a 1.2 mi (2 km) radius around Hollywood, Los Angeles, CA, USA (4.9 sq mi), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Hollywood · AQI 33 (Good)
Hollywood's tree count comes to 53,093 trees across 4.9 sq mi (12.57 km²), 13 points below the 30% tree-cover level considered healthy for this area, so roughly 41,155 more trees would close the gap.
Air quality detail
Air quality in Hollywood today: AQI 33, Good
Main pollutant: PM2.5 · Observed Nov 11, 07:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · North Holywood, 6.2 mi (9.9 km) away · median of 2 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.9
PM10
24.0
NO₂
61.4
O₃
4.9
SO₂
0.8
CO
572.8
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 Hollywood's daily AQI at 56 on average, from 46 on Nov 7 to an hourly peak of 83 on Nov 4.
Where Hollywood stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Hollywood: Critically low
16.9% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).
Trees in this area
53,093
Target trees
94,248
More trees needed
41,155
CO₂ if planted / yr
905.4 t
Deforestation · 2001–2025
How much forest has Hollywood lost?
Since 2001, the area within 10 km of Hollywood has lost about 570 acres (231 hectares) of forest (about 430 football fields): 17% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 87 acres (35 hectares) (15%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from June 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 570 acres (231 ha)about 430 football fields
- Share of its forest
- 17%of what there was in 2000
- Cleared for good
- 87 acres (35 ha)deforestation: turned into farms, mines or towns
The worst year was 2007, when about 467 acres (189 hectares) of forest were lost, mostly to wildfires.
Acres 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 | 2 acres (1 ha) |
| 2002 | 6 acres (3 ha) | under 1 ha | 8 acres (3 ha) |
| 2003 | 3 acres (1 ha) | under 1 ha | 5 acres (2 ha) |
| 2004 | 11 acres (4 ha) | under 1 ha | 13 acres (5 ha) |
| 2005 | 5 acres (2 ha) | under 1 ha | 7 acres (3 ha) |
| 2006 | 6 acres (2 ha) | under 1 ha | 8 acres (3 ha) |
| 2007 | 4 acres (2 ha) | 463 acres (187 ha) | 467 acres (189 ha) |
| 2008 | 11 acres (5 ha) | under 1 ha | 13 acres (5 ha) |
| 2009 | 4 acres (2 ha) | under 1 ha | 5 acres (2 ha) |
| 2010 | 3 acres (1 ha) | under 1 ha | 3 acres (1 ha) |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 3 acres (1 ha) | under 1 ha | 5 acres (2 ha) |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 6 acres (2 ha) | under 1 ha | 6 acres (2 ha) |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 5 acres (2 ha) | under 1 ha | 6 acres (2 ha) |
| 2017 | 10 acres (4 ha) | under 1 ha | 10 acres (4 ha) |
| 2018 | 3 acres (1 ha) | under 1 ha | 5 acres (2 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 | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | 3 acres (1 ha) | under 1 ha | 3 acres (1 ha) |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Hollywood?
- Wildfirescan grow back82% · 467 acres (189 ha)
- Towns and roadscleared for good12% · 70 acres (29 ha)
- Farms, pasture and plantationscleared for good2.9% · 17 acres (7 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
- 13,700 acres (5,550 ha)
- Forest in 2020
- 13,700 acres (5,530 ha)
- Overall change
- −49 acres (20 ha)less forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Hollywood stayed about the same size, at about 13,700 acres (5,530 hectares): new forest grew on about 210 acres (85 hectares), and about 259 acres (105 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 Hollywood
Same 2 km radius, same index — so they compare directly.
- Van Nuys14.9 km
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- Tree cover
- 19%
- Air quality
- 30
- Inglewood15.4 km
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- Tree cover
- 11%
- Air quality
- 49
- Pasadena17.7 km
United States
- Tree cover
- 26%
- Air quality
- 29
- Compton24.6 km
United States
- Tree cover
- 7%
- Air quality
- 65
- Downey25.1 km
United States
- Tree cover
- 11%
- Air quality
- 55
- El Monte27.7 km
United States
- Tree cover
- 9%
- Air quality
- 33
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Frequently asked
Questions about Hollywood
What is the air quality (AQI) in Hollywood right now?
The latest reading for Hollywood shows an AQI of 33 (Good), measured Nov 11, 07:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is North Holywood, 6.2 mi (9.9 km) away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Hollywood today?
At AQI 33 (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 Hollywood been like this week?
Over the last 7 days, the CAMS air-quality model put Hollywood's daily AQI at 56 on average, from 46 on Nov 7 to an hourly peak of 83 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 Hollywood lost since 2001?
Since 2001, the area within 10 km of Hollywood has lost about 570 acres (231 hectares) of forest (about 430 football fields): 17% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 87 acres (35 hectares) (15%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Hollywood stayed about the same size, at about 13,700 acres (5,530 hectares): new forest grew on about 210 acres (85 hectares), and about 259 acres (105 hectares) were lost.
What is the tree count in Hollywood?
Hollywood has an estimated 53,093 trees across the 4.9 sq mi (12.57 km²) measured — 16.9% tree cover, 13 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hollywood need?
Hollywood needs roughly 41,155 more trees to close a 13-point shortfall against its 30% tree-cover target — about 905.4 t of extra CO₂ absorbed per year once grown.
How are Hollywood's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Hollywood, 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 Hollywood; the tree count is an estimate derived from that cover.
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