Worst air pollution Glendale, today and tomorrow
Today (9 August): Air quality in Glendale is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (O3: 23.9/100).
Tomorrow (10 August 2026): Air quality in Glendale is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 22.5/100). Airmine updates local air quality forecasts four times daily.
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Glendale's air quality reflects the San Fernando Valley's partial topographic enclosure within the Los Angeles basin, with the surrounding Santa Monica, San Gabriel, and Verdugo mountains creating a significant pollution trap that concentrates vehicle emissions from I-5 and SR-134 under the region's persistent temperature inversions. The Glendale Narrows provides limited ventilation from the Los Angeles basin to the south, while the Verdugo Hills create additional topographic enclosure on the city's northern boundary.
Today - 9 August | Pollution peaks at 04:00
AQI:
Fair
23.9/100
PM2.5 (fine particles):
Good
15.7/100
PM10 (coarse particles):
Good
17.1/100
NO2 (nitrogen dioxide):
Good
1.6/100
O3 (ozone):
Fair
23.9/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.2/100
PM1 (ultrafine particles):
Good
6.3/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 10:00
AQI:
Fair
22.5/100
PM2.5 (fine particles):
Good
15.3/100
PM10 (coarse particles):
Good
16.1/100
NO2 (nitrogen dioxide):
Good
5.3/100
O3 (ozone):
Fair
22.5/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
7.1/100
Pollen forecast in Glendale
View pollen forecastFrequently Asked Questions
Is air quality bad in Glendale right now?
On 9 August 2026, overall air quality in Glendale is fair. AQI is the main air quality indicator at 23.9/100. Pollution peaks around 4:00 AM (O3: 23.9/100).
Will air quality be worse tomorrow in Glendale?
On 10 August 2026, air quality conditions in Glendale will be similar to today, with AQI forecast at fair at 22.5/100. Pollution peaks around 10:00 AM (O3: 22.5/100).
When is air pollution at its worst in Glendale?
Glendale's air quality has a clear seasonal rhythm: winter is generally the cleanest season, with cooler temperatures and less dust in the air, but intense summer heat combines with occasional dust events to create the year's worst episodes. Monsoon storms in July and August can either clear the air with rain or stir up dust ahead of the storm front.
Are air quality levels in Glendale based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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