AQI Alerts for Mira Loma, CA

# HEADLINE -------------------- AIR QUALITY ALERT DUE TO HARMFUL FINE PARTICLE POLLUTION LEVELS # DETAILS -------------------- 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 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. ISSUED AT Saturday, July 4, 2026 at 9:20 AM PDT ISSUED BY Relayed by National Weather Service San Diego, CA HEADER Air Quality Alert Message # 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 # AREAS AFFECTED -------------------- Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys, The Inland Empire 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