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Real-time Air Quality Index

Los Angeles AQI Today

75US AQI
Moderate

The current Air Quality Index in Los Angeles, United States is 75, which is considered moderate. The fine particulate (PM2.5) concentration is 25.5 µg/m³.

Last updated · Source: CAMS forecast model

Pollutant levels in Los Angeles

PM2.525.5 µg/m³Fine particulate matter
PM1026.7 µg/m³Coarse particulate matter
O₃1 µg/m³Ozone
NO₂56.2 µg/m³Nitrogen dioxide
SO₂3.7 µg/m³Sulphur dioxide
CO208 µg/m³Carbon monoxide

Health advice

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged or heavy outdoor exertion.

7-day AQI trend

DayAQICategory
Aug 1655Moderate
Aug 1752Moderate
Aug 1854Moderate
Aug 1961Moderate
Aug 2068Moderate
Aug 2174Moderate
Aug 2277Moderate

About the Air Quality Index

The Air Quality Index (AQI) converts measured pollutant concentrations — including PM2.5, PM10, ozone (O₃), nitrogen dioxide (NO₂), sulphur dioxide (SO₂), and carbon monoxide (CO) — into a single 0–500 scale. Higher values mean greater health risk. The reading for Los Angeles reflects a CAMS forecast model and updates throughout the day. Learn what the AQI number means for your body, read the AQI scale reference, or compare PM2.5 and PM10.

Frequently asked questions about Los Angeles air quality

What is the AQI in Los Angeles today?

The current Air Quality Index in Los Angeles, United States is 75 on the 0–500 US AQI scale, which is categorised as moderate. The reading comes from a CAMS forecast model and refreshes throughout the day.

What is the PM2.5 level in Los Angeles right now?

Fine particulate matter (PM2.5) in Los Angeles, United States is currently 25.5 µg/m³. The World Health Organization recommends keeping the 24-hour average below 15 µg/m³, so Los Angeles is currently above the WHO guideline.

Is it safe to go outside in Los Angeles today?

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged or heavy outdoor exertion.

What is considered a good AQI level?

An AQI of 0–50 is good, 51–100 is moderate, 101–150 is unhealthy for sensitive groups, 151–200 is unhealthy, 201–300 is very unhealthy, and anything above 300 is hazardous. The scale is the same everywhere, so readings are directly comparable between cities.

How often is the Los Angeles air quality data updated?

Air quality readings for Los Angeles, United States refresh throughout the day, and this page is rendered fresh on every visit, so the AQI, pollutant breakdown and 7-day trend always reflect the latest available model output.

Air quality near Los Angeles

Compare Los Angeles with the closest monitored cities — pollution is regional, so neighbouring readings often move together.

Open the live AQI dashboard Compare cities← All cities