Weather

1044 AM PDT Sat Jul 4 2026

...AIR QUALITY ALERT DUE TO HARMFUL FINE PARTICLE POLLUTION LEVELS...

* WHAT...The South Coast AQMD has issued an air quality alert due to
harmful levels of fine particle pollution.
Visit https://www.aqmd.gov/alertinfo to check current and forecasted
air quality levels.

* WHERE...Most of Los Angeles County. Levels of particle pollution
can vary by time and location depending on emissions and local
weather conditions.

* WHEN...High particle pollution due to fireworks expected from dusk
Saturday until 3 PM Sunday.

* IMPACTS...Particle pollution can get deep into the lungs and cause
serious health problems such as heart attacks, bronchitis, asthma
attacks, and difficulty breathing. Everyone can be affected, but
sensitive groups such as people with lung or heart disease, older
adults, people who are pregnant, children, and those who spend a lot
of time outdoors are at greater risk.

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.

* ADDITIONAL DETAILS...

To help keep indoor air clean when air quality is poor:

* 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, grilling, and gasoline-powered lawn and garden
equipment