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City report · California, United States

Valencia Air quality today

Air quality in Valencia currently reads AQI 13 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 13

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
2.4
tree cover
11.1%
trees in this area
34.9K
more trees needed
59.4K

Measured across a 1.2 mi (2 km) radius around Santa Clarita, Los Angeles, California, United States of America (4.9 sq mi), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Valencia · AQI 13 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 14, 2026

Valencia's tree count comes to 34,872 trees across 4.9 sq mi (12.57 km²), 19 points below the 30% tree-cover level considered healthy for this area, so roughly 59,376 more trees would close the gap.

Air quality detail

Air quality in Valencia today: AQI 13, 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 · Santa Clarita, CA, 3.6 mi (5.8 km) away

Health signal

Air quality is satisfactory for everyone.

PM2.5

2.4

PM10

—

NO₂

—

O₃

—

SO₂

—

CO

—

Data: OpenAQ · AirGradient, bdothadd

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 Valencia's daily AQI at 38 on average, from 30 on Nov 7 to an hourly peak of 58 on Nov 5.

Last 7 days · model estimateavg 38 · peak 58
Nov 4: AQI 47 (peak 55)Nov 5: AQI 43 (peak 58)Nov 6: AQI 32 (peak 55)Nov 7: AQI 30 (peak 52)Nov 8: AQI 34 (peak 56)Nov 9: AQI 41 (peak 56)Nov 10: AQI 38 (peak 57)
Nov 4Nov 10

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

Tree cover detail

Tree cover in Valencia: Critically low

11.1% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).

19 points below target

Trees in this area

34,872

Target trees

94,248

More trees needed

59,376

CO₂ if planted / yr

1,306 t

Deforestation · 2001–2025

How much forest has Valencia lost?

Since 2001, the area within 10 km of Valencia has lost about 1,880 acres (762 hectares) of forest (about 1,400 football fields): 74% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 33 acres (13 hectares) (1.7%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Valencia, June 2017

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

Forest lost since 2001
1,880 acres (762 ha)about 1,400 football fields
Share of its forest
74%of what there was in 2000
Cleared for good
33 acres (13 ha)deforestation: turned into farms, mines or towns

The worst year was 2003, when about 642 acres (260 hectares) of forest were lost, mostly to wildfires.

Forest lost each year around Valencia, 2001–2025

Acres of forest lost each year

Forest lost each year around Valencia, 2001–2025. Use the left and right arrow keys to read each year.642

Show the figures as a table
Forest lost each year around Valencia, 2001–2025
YearCleared for goodCan grow backTotal
20015 acres (2 ha)83 acres (34 ha)88 acres (36 ha)
2002under 1 ha29 acres (12 ha)29 acres (12 ha)
2003under 1 ha641 acres (259 ha)642 acres (260 ha)
2004under 1 ha613 acres (248 ha)613 acres (248 ha)
200514 acres (6 ha)8 acres (3 ha)22 acres (9 ha)
2006under 1 haunder 1 haunder 1 ha
20072 acres (1 ha)239 acres (97 ha)242 acres (98 ha)
2008under 1 ha158 acres (64 ha)158 acres (64 ha)
2009under 1 ha2 acres (1 ha)2 acres (1 ha)
2010under 1 haunder 1 haunder 1 ha
2011under 1 ha3 acres (1 ha)3 acres (1 ha)
2012under 1 ha7 acres (3 ha)7 acres (3 ha)
2013under 1 haunder 1 haunder 1 ha
2014under 1 haunder 1 haunder 1 ha
2015under 1 haunder 1 haunder 1 ha
20163 acres (1 ha)2 acres (1 ha)5 acres (2 ha)
2017under 1 ha18 acres (7 ha)20 acres (8 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 ha42 acres (17 ha)42 acres (17 ha)

What is causing deforestation around Valencia?

  • Wildfirescan grow back98% · 1,840 acres (743 ha)

Also: farms, pasture and plantations, towns and roads, mining and energy, 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
11,200 acres (4,530 ha)
Forest in 2020
11,300 acres (4,590 ha)
Overall change
+148 acres (60 ha)more forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Valencia stayed about the same size, at about 11,300 acres (4,590 hectares): new forest grew on about 603 acres (244 hectares), and about 455 acres (184 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 Valencia

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

  • Simi Valley

    United States

    25.0 km
    Tree cover
    14%
    Air quality
    17
  • Van Nuys

    United States

    32.1 km
    Tree cover
    19%
    Air quality
    34
  • Thousand Oaks

    United States

    36.9 km
    Tree cover
    20%
    Air quality
    39
  • Burbank

    United States

    40.2 km
    Tree cover
    15%
    Air quality
    34
  • Hollywood

    United States

    46.4 km
    Tree cover
    17%
    Air quality
    37
  • Palmdale

    United States

    47.6 km
    Tree cover
    4%
    Air quality
    17

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

Questions about Valencia

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

The latest reading for Valencia shows an AQI of 13 (Good), measured Nov 11, 07:00 local time by the Santa Clarita, CA ground monitoring station, 3.6 mi (5.8 km) away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Valencia today?

At AQI 13 (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 Valencia been like this week?

Over the last 7 days, the CAMS air-quality model put Valencia's daily AQI at 38 on average, from 30 on Nov 7 to an hourly peak of 58 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 Valencia lost since 2001?

Since 2001, the area within 10 km of Valencia has lost about 1,880 acres (762 hectares) of forest (about 1,400 football fields): 74% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 33 acres (13 hectares) (1.7%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Valencia stayed about the same size, at about 11,300 acres (4,590 hectares): new forest grew on about 603 acres (244 hectares), and about 455 acres (184 hectares) were lost.

What is the tree count in Valencia?

Valencia has an estimated 34,872 trees across the 4.9 sq mi (12.57 km²) measured — 11.1% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Valencia need?

Valencia needs roughly 59,376 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,306 t of extra CO₂ absorbed per year once grown.

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

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

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