Air Quality Alert

CAZ371-373-380-378-368-548-088-375-372-379-110315-
Calabasas and Agoura Hills-
Eastern San Fernando Valley-
Including the cities of Burbank, Glendale, and Universal City
Eastern San Gabriel Mountains-
Interstate 5 Corridor-
Los Angeles County Inland Coast including Downtown Los Angeles-
Including the cities of Inglewood, Downey, Norwalk, Beverly Hills,
and West Hollywood
Los Angeles County San Gabriel Valley-
Including the cities of Pasadena, San Gabriel, and Pomona
Santa Clarita Valley-
Including the cities of Santa Clarita, Newhall, and Valencia
Santa Susana Mountains-
Western San Fernando Valley-
Including the cities of Reseda, Woodland Hills, and Northridge
Western San Gabriel Mountains and Highway 14 Corridor-

503 PM PDT Wed Jul 9 2025

...AIR QUALITY ALERT FOR HARMFUL LEVELS OF OZONE (SMOG) AIR
POLLUTION UNTIL 8 PM PDT THURSDAY EVENING...

* WHAT...The South Coast AQMD has updated an air quality alert due
  to harmful levels of ozone pollution.

* WHERE...In Metropolitan Los Angeles, the San Fernando Valley,
  Santa Clarita, and the San Gabriel Mountains. Levels of ozone
  pollution can vary by time and location depending on emissions and
  air pollution transport.

* WHEN...Until Thursday at 800 PM PDT. The highest ozone levels
  typically occur in the afternoon and early-evening hours.

* IMPACTS...Ozone air pollution can cause serious health problems,
  including trouble breathing, asthma attacks, and lung damage.
  Everyone can be affected, but sensitive groups such as people with
  lung disease, older adults, people who are pregnant, children, and
  those who spend a lot of time outdoors are at greater risk.

* ADDITIONAL DETAILS...To help keep indoor air clean when air
  quality is poor: 00

* Keep windows and doors closed
* Run your air conditioner and/or an air purifier
* Do not use whole house fans or swamp coolers that bring in outside
  air if you have other methods to stay cool
* Avoid other sources of pollution such as fireplaces, candles,
  incense, and grilling

To help minimize outdoor ozone air pollution levels:

* Limit the use of gasoline powered lawn and garden equipment until
  evening hours
* Try to delay trips to the 00gas station and the use
  of household chemicals until the evening

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To protect your health, check air quality levels and act as needed:

* When Air Quality Index (AQI) levels are "Unhealthy for Sensitive
  Groups" (orange), sensitive groups as specified above should limit
  extended or intense outdoor activity.
* When AQI is "Unhealthy" (red), everyone may experience health
  impacts. Sensitive groups should avoid extended time outdoors.
* When AQI is "Very Unhealthy" (purple), sensitive groups should
  avoid all outdoor physical activity. Everyone else should avoid
  extended or intense outdoor activity.
* When AQI is "Hazardous" (maroon), everyone should avoid all outdoor
  physical activity.

To view current and forecasted air quality levels in the South Coast
Air Basin, visit the South Coast Air Quality Management District
website at aqmd.gov or download the mobile app at
www.aqmd.gov/mobileapp. Additional details for this air quality
alert may be available at www.aqmd.gov/advisory.

To view current and forecasted air quality levels in the High Desert
portion of Los Angeles County, visit the Antelope Valley Air Quality
Management District website at www.avaqmd.ca.gov.

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