Los Angeles: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

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Latest air quality data: Los Angeles

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Pollution and air quality forecast for Los Angeles. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Los Angeles:

particulate matter (PM2.5) dust - 30 (Moderate)
particulate matter (PM10) suspended dust - 35 (Moderate)
ozone (O3) - 115 (Moderate)
nitrogen dioxide (NO2) - 21 (Good)
sulfur dioxide (SO2) - 3 (Good)
carbon monoxide (CO) - 181 (Good)

Real-time Air Quality Index (AQI) for Los Angeles, Wednesday, August 26, 2026: 2.

AQI 2 Moderate

What is the air quality in Los Angeles today? Is the air polluted in Los Angeles?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is moderate in Los Angeles. Some pollutants in Los Angeles may slightly affect very few hypersensitive individuals. Air pollutants in Los Angeles may cause minor breathing discomfort to sensitive people.

What is the current level of PM2.5 in Los Angeles? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 30 (Moderate) For comparison, the highest level of PM2.5 in Los Angeles in the last 7 days was: 32 (Wednesday, August 26, 2026) and the lowest: 18 (Wednesday, August 19, 2026).

What is the level of PM10 today in Los Angeles? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Los Angeles is: 35 (Moderate)

How is the O3 level today in Los Angeles? (ozone (O3))
115 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
21 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)

How high is the CO level? (carbon monoxide (CO))
181 (Good)

Current data Wednesday, August 26, 2026 at 6:00 PM

PM2,5 30 (Moderate)

PM10 35 (Moderate)

O3 115 (Moderate)

NO2 21 (Good)

SO2 3 (Good)

CO 181 (Good)

Data on air pollution from recent days in Los Angeles

index	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20	2026-08-19
pm25	32 Moderate	28 Moderate	25 Moderate	23 Moderate	20 Moderate	23 Moderate	22 Moderate	18 Moderate
pm10	35 Moderate	32 Moderate	27 Moderate	25 Moderate	22 Moderate	26 Moderate	26 Moderate	22 Moderate
o3	54 Good	54 Good	47 Good	44 Good	46 Good	42 Good	44 Good	61 Good
no2	53 Moderate	45 Moderate	38 Good	35 Good	34 Good	37 Good	36 Good	31 Good
so2	4 Good	3 Good	4 Good	4 Good	4 Good	5 Good	4 Good	3 Good
co	255 Good	201 Good	228 Good	193 Good	180 Good	200 Good	188 Good	210 Good

data source »

Los Angeles

Wednesday, August 26, 2026 at 6:00 PM

PM2,5 30 (Moderate)

particulate matter (PM2.5) dust

PM10 35 (Moderate)

particulate matter (PM10) suspended dust

O3 115 (Moderate)

ozone (O3)

NO2 21 (Good)

nitrogen dioxide (NO2)

SO2 3.4 (Good)

sulfur dioxide (SO2)

CO 181 (Good)

carbon monoxide (CO)

Los Angeles

index	2026-08-19	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26
pm25	18	22	23	20	23	25	28	32
pm10	22	26	26	22	25	27	32	35
o3	61	44	42	46	44	47	54	54
no2	31	36	37	34	35	38	45	53
so2	2.8	3.7	4.5	3.9	3.6	3.8	3	3.6
co	210	188	200	180	193	228	201	255

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — United States

16-day weather forecast for United States: today around 30°C (rain), lows near 19°C. Daily temperature and conditions, updated every day. Strong wind (about 25 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — United States

The UV index in United States today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Los Angeles — compare nearby locations.

New York City 20 µg/m³
Chicago 10 µg/m³
Houston 15 µg/m³
Philadelphia 12 µg/m³
Phoenix 7 µg/m³
Bronx 20 µg/m³
San Antonio 12 µg/m³
Dallas 10 µg/m³

Frequently asked questions

Is the air safe to breathe in Los Angeles today?

The current average PM2.5 across Los Angeles is about 30 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in Los Angeles?

Right now PM2.5 in Los Angeles averages about 30 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Los Angeles?

Over the past week, the highest daily PM2.5 in Los Angeles was recorded on Wednesday, August 26 (about 32 µg/m³).

What is the UV index in Los Angeles today?

The UV index in Los Angeles today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Los Angeles?

Strong wind (about 25 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.