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Air Quality Alert
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
979 AEUS76 KSGX 072331 AQASGX Air Quality Alert Message Relayed by National Weather Service San Diego, CA 431 PM PDT Sat Sep 7 2024 CAZ048-055>057-065-554-090345- San Bernardino and Riverside County Valleys-The Inland Empire- San Bernardino County Mountains-Riverside County Mountains- Santa Ana Mountains and Foothills-San Gorgonio Pass Near Banning- Orange County Inland Areas- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 431 PM PDT Sat Sep 7 2024 ...AIR QUALITY ALERT FOR ELEVATED OZONE AIR POLLUTION AND ELEVATED FINE PARTICLE POLLUTION LEVELS DUE TO WILDFIRE SMOKE... The South Coast AQMD has extended the air quality alert in the South Coast Air Basin due to high levels of ozone (smog) and increased fine particle pollution from wildfire smoke in the region. The air quality alert is in effect until Monday evening for smog and Sunday evening for wildfire smoke. High ozone levels are expected to impact most of the South Coast Air Basin. Smoke is expected to impact the Inland Empire and the San Bernardino Mountains. Elevated levels of ozone - the predominant summertime pollutant - are likely to result in poor air quality in the afternoon and early- evening hours. Ozone air pollution can cause respiratory health problems, including trouble breathing, asthma attacks, and lung damage. Children, older adults, and people with asthma or COPD may be more sensitive to the health effects of ozone. Air quality can change depending on time of day and weather conditions. Increased emissions of chemicals and faster ozone formation rates due to heat, along with low winds and stagnant weather can cause unusually high and persistent levels of ozone pollution. For the latest air quality forecasts and information, visit the website at aqmd.gov. $$