Today Los Angeles is experiencing mostly moderate to good air quality, with an Air Quality Index ranging from 50 to 97 across the city’s different regions. Central and Northwest Coastal Los Angeles County have AQI scores of 58 and 55, showing moderate levels due to fine particulate matter. Southwest and South Coastal areas are enjoying good air quality, with an AQI of 50. Southeast LA, West and East San Fernando Valley, and San Gabriel Valley regions show moderate readings, mainly from ozone and PM2.5, with East San Gabriel Valley peaking at an AQI of 97[1].

The primary pollutants are fine particulates and ground-level ozone. PM2.5 concentrations are stable throughout the day, while ozone readings are higher in the eastern valleys. Most residents will experience clean air during outdoor activities, and sensitive groups such as people with asthma or respiratory issues may want to monitor for moderate readings, especially in East San Gabriel Valley. For context, PM2.5 levels are generally below 5 micrograms per cubic meter, and ozone slightly above 20 parts per billion, both remaining well below hazardous thresholds[2].

The historical trends for August show Los Angeles routinely shifts between good and moderate air quality, with values peaking during afternoons and receding overnight. During this week, the AQI reached 61 at mid-afternoon, but typically stays below 60 before sunset[3].

Weather conditions today are sunny with temperatures around 22 to 32 degrees Celsius and moderate humidity, which helps disperse pollutants. The wind speed is gentle at 9 kilometers per hour, with a UV index of 7, indicating strong sunlight which can enhance ozone formation[2].

While air quality has improved compared to historical highs, residents in moderate AQI zones should be cautious during strenuous outdoor exercise and those in sensitive groups may wish to limit prolonged exposure during the afternoon hours. Continued monitoring using local forecasting apps or the South Coast Air Quality Management District updates is advisable for real-time information[1].