Worst air pollution Runyon Canyon - Los Angeles, today and tomorrow
Today (15 July): Air quality in Runyon Canyon is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 31.2/100).
Tomorrow (16 July 2026): Air quality in Runyon Canyon is fair. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 29.9/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Los Angeles' Runyon Canyon air quality benefits from the elevated Hollywood Hills position at up to 299 metres, with the canyon's hillside position and the surrounding chaparral providing marginally better conditions than the Hollywood flatlands below. Vehicle traffic on Fuller Avenue is the primary local concern, while the elevated hillside dispersal and the canyon's natural ventilation generally maintain better conditions than the dense Hollywood commercial corridor below throughout most of the year.
Today - 15 July | Pollution peaks at 08:00
AQI:
Fair
31.2/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Fair
22.4/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
31.2/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
2.4/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 09:00
AQI:
Fair
29.9/100
PM2.5 (fine particles):
Good
13.3/100
PM10 (coarse particles):
Fair
23.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
29.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
1.0/100
PM1 (ultrafine particles):
Good
2.6/100
Other Landmarks in Los Angeles
Sports venues in Los Angeles
Frequently Asked Questions
Is air quality bad in Runyon Canyon right now?
On 15 July 2026, overall air quality in Runyon Canyon is fair. AQI is the main air quality indicator at 31.2/100. Pollution peaks around 8:00 AM (O3: 31.2/100).
Will air quality be worse tomorrow in Runyon Canyon?
On 16 July 2026, air quality conditions in Runyon Canyon will be similar to today, with AQI forecast at fair at 29.9/100. Pollution peaks around 9:00 AM (O3: 29.9/100).
When is air pollution at its worst in Runyon Canyon?
Runyon Canyon experiences the same seasonal air quality swings as the rest of Los Angeles. Typically, winter rains provide the only real relief from an otherwise persistent haze, while summer sunshine and heat drive some of the worst ozone readings in the country. The mountains ringing the basin can trap pollution close to the ground for days when winds are calm.
Are air quality levels in Runyon Canyon 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app