Today’s air quality in Los Angeles is generally good, with most regions recording an Air Quality Index (AQI) well within safe limits. Central Los Angeles shows an AQI of 50, meaning fine particulate matter (PM2.5) levels are low and there are no health risks for the public. Northwest Coastal areas register an AQI of 39, Southwest at 44, and South Coastal at 50, all falling in the good range. Southeast Los Angeles and both valleys also report good AQI values at 50, with only slight increases to moderate levels in the East San Gabriel Valley (AQI 55) and Pomona/Walnut Valley (AQI 53). PM2.5 is the main pollutant and is expected to remain similar throughout the day.

Real-time measurements as of late yesterday show a citywide AQI of 25, considered very good. Main pollutants registered were 4 micrograms per cubic meter for PM2.5 and 11 micrograms for PM10, well below any thresholds of concern. Ozone (O3), nitrogen dioxide (NO2), carbon monoxide (CO), and sulfur dioxide (SO2) also remain at very low values. Weather conditions are overcast, with a temperature of 21 degrees Celsius, high humidity at 78 percent, and a gentle 12 km per hour wind that helps keep pollution dispersed.

Over the last 24 hours, Los Angeles AQI has fluctuated between a high of 38 and a low of 19, indicating minimal variation and consistently clean air. Historical analysis shows notable improvement in 2025, with AQI averages declining compared to previous years. About 67 percent of the past 268 days have remained within WHO’s safe air quality limits, resulting in only moderate health risks.

No special precautions are recommended as air quality is satisfactory and pollution levels pose little or no risk. Outdoor activities can be enjoyed freely today throughout Los Angeles.

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This content was created in partnership and with the help of Artificial Intelligence AI