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Air Quality Alert Message

Status

Issued Active alert

Start Time

Thu 07/02/2026 05:10 PM EDT

End Time

Fri 07/03/2026 05:15 PM EDT

Impacts

Informational

Full Alert Message

Air Quality Alert Message Relayed by National Weather Service San Diego, CA 210 PM PDT Thu Jul 2 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, Orange County, and the Inland Empire. 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

Technical Header

CAZ048-552-554-032115- San Bernardino and Riverside County Valleys-The Inland Empire- Orange County Coastal Areas-Orange County Inland Areas- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, San Clemente, Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 210 PM PDT Thu Jul 2 2026